WST (Winchester Super Target) PUBLISHED load data for 9mm

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LiveLife

LiveLife

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DISCLAIMER: There is no current published load data for WST and 9mm. Use the recommendations/load data/loads mentioned in this thread at your own risk.

= Please note particular attention to bullet diameter and OAL of loads mentioned in this thread =

Request for WST (Winchester Super Target) load data question for 9mm comes up from time to time and our typical replies are:
  • There is no currently published load data for WST and 9mm
  • WST pressures can be spiky at the top
  • Some match shooters like WST for 9mm (USPSA minor power factor) to produce accurate loads
  • Depending on the bullet/barrel used, loads making minor PF may require compressed powder charge

I did some digging and found WST load data for 9mm in Hornady Handbook of Cartridge Reloading - 4th Edition (Pages 543 - 548) - http://marvinstuart.com/firearm/Manuals/Reloading/Reloading Manuals/Hornady Handbook of Cartridge Reloading - 4th Edition - Volume 1.pdf

And these were test equipment/components:
  • Pistol - S&W Model 39
  • Barrel length - 4" (Groove diameter not mentioned)
  • Case - Hornady
  • Primer - Federal 100
  • Bullet diameter - .355"

Since I have used WST and W231 with 9mm, I decided to make some comparisons. Here's Hornady #4 load data for 124 gr FMJ RN (Page 547):
  • 9mm 124 gr FMJ WST COL 1.150" Start 4.8 gr (1025 fps) - Max 5.4 gr (1100 fps)
  • 9mm 124 gr FMJ W231 COL 1.150" Start 4.7 gr (1050 fps) - Max 5.3 gr (1125 fps)

So, what's the deal?

Looking at Hornady #4 load data, things that caught my attention were much higher start/max charges for WST and W231.

Here's Speer load data for 124 gr TMJ RN for reference - https://reloading-data.speer-ammo.c...m_caliber_355-366_dia/9mm_Luger__124_rev1.pdf
  • 9mm 124 gr TMJ W231 OAL 1.135" Start 4.0 gr (887 fps) - Max 4.5 gr (998 fps)
And here's Hodgdon load data for 124 gr FMJ RN for reference - http://www.hodgdonreloading.com/
  • 9mm 124 gr FMJ W231/HP-38 COL 1.090" Start 4.4 gr (1009 fps) - Max 4.8 gr (1088 fps)

When I did my load development with WST and 124 gr FMJ/RN bullets using typical 1.135" OAL, powder charge higher than 4.0 gr would fill the case fairly full. So as to not compress the powder charge, I used longer 1.150"-1.160" OAL. (Note RMR thick plated RN used was sized larger at .356" and produced very accurate load)

index.php


NOTE: While slight compression of powder charge may be OK, significant bullet setback and resulting powder charge compression could significantly increase chamber pressures (So when working with WST for 9mm, I would ensure finished rounds did not experience bullet setback) - https://www.thehighroad.org/index.p...neck-tension-and-bullet-setback.830072/page-4

And here's Hodgdon's thoughts on powder compression - https://www.hodgdonreloading.com/reloading-education/reloading-beginners/compressed-loads


So here are my thoughts:
  • I do not know the groove-to-groove diameter of test pistol used (S&W model 39)
  • If your barrel's groove diameter is smaller around .355" - .356", I would consider using conservative powder charges around 4.0 gr for your work up (Even consider 3.8 gr as start charge if using shorter OAL) for 124 gr FMJ RN and diligently use chrono for your load development
  • If you are using higher than 4.0 gr of powder charge, increase your OAL/COL to 1.135"-1.150"
  • If you must use shorter than 1.150" OAL for your barrel, consider reducing your powder charges and doing case fill calculations (see below for example)
  • If you are using larger sized .356" diameter bullets, consider reducing your powder charges

And here's my post on Brian Enos forum on WST and 9mm powder case fill calculations - https://forums.brianenos.com/topic/277312-wst-and-9mm/?tab=comments#comment-3089819
ExStreetWalker said:
I see that almost any load is going to end up compressing the powder.

The charge I'm looking at is 4.6 gr, under a 125 gr RNFP from a MP mold. This is going to cause a compressed load.
Click to expand...
And my reply with case fill calculations

"May depend on the OAL/COL used. To be sure, do some case fill calculations to see if you are going to end up with a compressed load - https://www.thehighroad.org/index.php?threads/wst-in-9mm.854647/#post-11199933

I measured several 9mm RMR 124 gr FMJ RN and longer bullets measure .598"

So using OAL/COL of 1.135", my max case fill is:

OAL - Bullet length = 1.135" - .598" = .537"
​
I measured some resized WIN cases and I got .747" as average resized case length.

So I subtract max case fill from average resized case length and I get .747" - .537" = .210"
​
I used the end of my dial calipers to mark the inside of the case and filled it with WST to mark and weighed the charge - 4.6 gr.

So for .598" length 124 gr RN bullet loaded to 1.135" OAL, max charge of WST before powder compression is 4.6 gr.
​
This is in line with what CocoBolo posted"
CocoBolo said:
WST works very well with BayouBullets or Precision molly in 9 mm, with jacketed bullets 125 gr it is a bit snappy. I have shot a lot of 125 gr Zeros with WST, the OAL (and pay attention here) was 1.145 and 4.6 gr of WST ...
Click to expand...
 
Last edited:
And keep in mind that WST is reverse temperature sensitive which means velocity increases as temperature drops.

I hope this helps those wanting to try WST for 9mm.

Be safe. (And be sure to check neck tension/bullet setback ;):D)
 
Last edited:
Tagging in since I’m interested. I load WST in .38, .40 and .45 and it meters well, shoots well, good case fill (maybe too good?) but haven’t loaded it in 9mm, yet.
 
LiveLife said:
Since I have used WST and W231 with 9mm, I decided to make some comparisons. Here's Hornady #4 load data for 124 gr FMJ RN (Page 547):
  • 9mm 124 gr FMJ WST COL 1.150" Start 4.8 gr (1025 fps) - Max 5.4 gr (1100 fps)
  • 9mm 124 gr FMJ W231 COL 1.150" Start 4.7 gr (1050 fps) - Max 5.3 gr (1125 fps)

So, what's the deal?

Looking at Hornady #4 load data, things that caught my attention were much higher start/max charges for WST and W231.

Here's Speer load data for 124 gr TMJ RN for reference - https://reloading-data.speer-ammo.c...m_caliber_355-366_dia/9mm_Luger__124_rev1.pdf
  • 9mm 124 gr TMJ W231 OAL 1.135" Start 4.0 gr (887 fps) - Max 4.5 gr (998 fps)
And here's Hodgdon load data for 124 gr FMJ RN for reference - http://www.hodgdonreloading.com/
  • 9mm 124 gr FMJ W231/HP-38 COL 1.090" Start 4.4 gr (1009 fps) - Max 4.8 gr (1088 fps)
Click to expand...
Imagine how confusing this is for a new reloader who doesn't have the rest of the info you posted to try and clear things up.
 
kidneyboy said:
LiveLife said:
Hornady #4 load data for 124 gr FMJ RN (Page 547):
  • 9mm 124 gr FMJ WST COL 1.150" Start 4.8 gr (1025 fps) - Max 5.4 gr (1100 fps)
Click to expand...
Imagine how confusing this is for a new reloader who doesn't have the rest of the info you posted to try and clear things up.
Click to expand...
And that's with the published load data ... without factoring use of mixed range brass, different bullet types and sizing, shorter OAL required for newer barrels with shorter leade, bullet setback, etc.

I am glad we finally got to delve into WST for 9mm issue and come up with some usable numbers.
 
Repost from WST for 45ACP thread - https://www.thehighroad.org/index.php?threads/wst.870098/page-2#post-11539014

Crazy Horse said:
Have you shot any 9mm reloads using WST? What was your experience, and if so, do you still use WST and 9mm. I read the post and noticed that you increased your OAL. Did you try reducing the charge so as not to have to increase the OAL or compress the charge? If so what was the charge weight?
Click to expand...
While some members posted that my testing with WST was perhaps too conservative, but my concerns were possible powder compression and the reality of bullet setback most reloaders experience. I believe after some discussion with moderator 9mmepiphany (Who BTW holds CA state IDPA championship title), we entertained the prospect of going up to 4.3 gr with 1.150" OAL to be practical max charge.

But without published load data and the fact that barrels' groove diameter varies with increasing trend for shorter leade length, I decided to fault on "High Road" notion for bulk of reloaders with my testing of smaller groove diameter (.355"-.356") barrels with larger .356" sized bullets of using 4.0 gr of WST that would provide some sense of pressure buffer from using shorter OAL/bullet setback.

But when the WST and 9mm issue resurfaced on Brian Enos forum after having read CocoBolo's post of his "practical" max charge of 4.6 gr with Zero 125 gr FMJ loaded to 1.145" (BTW, Zero 115 gr FMJ I have are sized larger at .356"), I wanted to illustrate how this was arrived by using case fill calculation. And coincidentally, using RMR 124 gr FMJ at 1.135", the typical OAL that I load 124 gr FMJ/RN to, 4.6 gr of WST was the "realistic" max charge that would not compress the powder charge.

BUT BUT BUT ... there's a difference between "realistic" vs "practical" max charge as we all know that finished rounds can and often do experience bullet setback when fed/chambered from the magazine.

So I would consider 4.6 gr of WST for RMR 124 gr FMJ loaded to 1.135" ONLY IF your finished rounds absolutely do not experience any bullet setback. If you do experience bullet setback, I would recommend:
  • Addressing the bullet setback issue to eliminate it
  • Using reduced powder charge to compensate (Perhaps 4.3 gr?)
  • Trying longer 1.150" OAL to see if post bullet setback OAL is longer than 1.135"
Personally, since I use mixed range brass with unknown reload history and condition of brass (Not like brand new brass Hornady used for their testing), I would consider 4.6 gr to be the "practical" max charge if my brass and bullet combo did not produce bullet setback at 1.135". If you want a degree of "comfort", you could load longer at 1.145" or 1.150" and see what the accuracy is like.

And for my USPSA match loads, since I did not need bullseye match level of accuracy, I continued my 9mm testing with Clays, Bullseye, Titegroup, W231/HP-38, Universal, WSF, HS-6 using available published load data and decided on W231/HP-38 and WSF.

In recent years, I tested Red Dot/Promo, IMR Red, IMR Target, Vectan Ba9.5, N320, Sport Pistol, Green Dot, Unique, Power Pistol, BE-86, AutoComp, CFE Pistol, Herco, etc. and found Target, Sport Pistol and BE-86 to be accuracy contenders with reblended Promo to produce very acceptable level of accuracy for general purpose range blasting ammo (particularly for carbine loads) - https://www.thehighroad.org/index.p...ectan-ba-9-5-ba-9.817796/page-2#post-10511758

But for me, WST remains one of more accurate powders for 9mm and now with Hornady #4 "published" 9mm load data for WST, we have a viable powder solution for utmost accuracy loads instead of wringing of hands and shuffling of feet.
 
LiveLife said:
Repost from WST for 45ACP thread - https://www.thehighroad.org/index.php?threads/wst.870098/page-2#post-11539014


While some members posted that my testing with WST was perhaps too conservative, but my concerns were possible powder compression and the reality of bullet setback most reloaders experience. I believe after some discussion with moderator 9mmepiphany (Who BTW holds CA state IDPA championship title), we entertained the prospect of going up to 4.3 gr with 1.150" OAL to be practical max charge.

But without published load data and the fact that barrels' groove diameter varies with increasing trend for shorter leade length, I decided to fault on "High Road" notion for bulk of reloaders with my testing of smaller groove diameter (.355"-.356") barrels with larger .356" sized bullets of using 4.0 gr of WST that would provide some sense of pressure buffer from using shorter OAL/bullet setback.

But when the WST and 9mm issue resurfaced on Brian Enos forum after having read CocoBolo's post of his "practical" max charge of 4.6 gr with Zero 125 gr FMJ loaded to 1.145" (BTW, Zero 115 gr FMJ I have are sized larger at .356"), I wanted to illustrate how this was arrived by using case fill calculation. And coincidentally, using RMR 124 gr FMJ at 1.135", the typical OAL that I load 124 gr FMJ/RN to, 4.6 gr of WST was the "realistic" max charge that would not compress the powder charge.

BUT BUT BUT ... there's a difference between "realistic" vs "practical" max charge as we all know that finished rounds can and often do experience bullet setback when fed/chambered from the magazine.

So I would consider 4.6 gr of WST for RMR 124 gr FMJ loaded to 1.135" ONLY IF your finished rounds absolutely do not experience any bullet setback. If you do experience bullet setback, I would recommend:
  • Addressing the bullet setback issue to eliminate it
  • Using reduced powder charge to compensate (Perhaps 4.3 gr?)
  • Trying longer 1.150" OAL to see if post bullet setback OAL is longer than 1.135"
Personally, since I use mixed range brass with unknown reload history and condition of brass (Not like brand new brass Hornady used for their testing), I would consider 4.6 gr to be the "practical" max charge if my brass and bullet combo did not produce bullet setback at 1.135". If you want a degree of "comfort", you could load longer at 1.145" or 1.150" and see what the accuracy is like.

And for my USPSA match loads, since I did not need bullseye match level of accuracy, I continued my 9mm testing with Clays, Bullseye, Titegroup, W231/HP-38, Universal, WSF, HS-6 using available published load data and decided on W231/HP-38 and WSF.

In recent years, I tested Red Dot/Promo, IMR Red, IMR Target, Vectan Ba9.5, N320, Sport Pistol, Green Dot, Unique, Power Pistol, BE-86, AutoComp, CFE Pistol, Herco, etc. and found Target, Sport Pistol and BE-86 to be accuracy contenders with reblended Promo to produce very acceptable level of accuracy for general purpose range blasting ammo (particularly for carbine loads) - https://www.thehighroad.org/index.p...ectan-ba-9-5-ba-9.817796/page-2#post-10511758

But for me, WST remains one of more accurate powders for 9mm and now with Hornady #4 "published" 9mm load data for WST, we have a viable powder solution for utmost accuracy loads instead of wringing of hands and shuffling of feet.
Click to expand...
LiveLife,

I just created test loads for 9mm. Used the following load data. Bullet: Acme 124gr coated LRN, 4gr of WST, seated to 1.135. Seating was good and I didn't have to use a longer OAL based on your detailed post. The reason for 1.135 was the plunk test. That OAL passed the plunk test on my 9mm with the shortest OAL. I'm going to try them at the range tomorrow, along with my 45acp reloads using 4.4 gr of WST.

CH
 
Don't know, I've been running/using 5.0gr of wst for +/-125gr cast bullets in the 9mm's for years.

I like to set the powder throw to 5.0gr of wst and load:
125gr 9mm's
158gr 357's
240gr 44sp's
200gr 45acp's

I've never found the loads too hot & have outstanding accuracy.
 
LiveLife said:
What were your barrel's groove diameter, barrel length, bullet sizing, bullet length, OAL and average chrono velocity?
Click to expand...

This thread, and the previous thread that started it, have been interesting, to say the least. I still stand by my statement that, even as much as I like WST, there are better powders for 9mm. In my early days of reloading, I got into trouble loading 9mm, with Unique... a much more forgiving powder than WST; thank Heavens I was firing them in a HiPower. That episode emphasized the need to pay attention to cartridge OAL, and specifically with high pressure cartridges like the 9mm, but is, obviously, a necessity in all cartridges. There is a reason there is no current published data for 9mm and WST, much like there is no current data for BlueDot in the .41MAG. When you have a page full of check boxes to tic off to properly engineer a cartridge that won't overload a firearm... something is wrong. Just my .02 worth.
 
LiveLife said:
What were your barrel's groove diameter, barrel length, bullet sizing, bullet length, OAL and average chrono velocity?
Click to expand...

I use the same load in several different 9mm's. The firearm that uses this load the most is a Springfield Armory RO, 10-shot group @ 50ft.
N6XBlbc.jpg

The bbl groove diameter is .3555"
The bbl length is 5"
The bullet is cast from 8/9bhn alloy pc'd and then sized to .358"
The bullet length is .595" (green bullet)
The oal is 1.130"

A picture of the bullet I use for the 5.0gr of wst in the 9mm, the green bullet. It's next to another bullet (red) that I also use in the same ro 9mm, note different bullet length/same oal.
V87WlTN.jpg

That green bullet/5.0gr of wst is running right at 1130fps in the ro's 5" bbl.
 
forrest r said:
I use the same load in several different 9mm's. The firearm that uses this load the most is a Springfield Armory RO, 10-shot group @ 50ft.
Click to expand...
Nice shooting. Yes, WST is still my 9mm accuracy standard that has not been surpassed by other powders, even newer powders.


forrest r said:
I use the same load in several different 9mm's. The firearm that uses this load the most is a Springfield Armory RO, 10-shot group @ 50ft.

The bbl groove diameter is .3555"
The bbl length is 5"
The bullet is cast from 8/9bhn alloy pc'd and then sized to .358"
The bullet length is .595" (green bullet)
The oal is 1.130"
Click to expand...
Thank you very much for the numbers!

Data like this will definitely help THR members with their load development.

kidneyboy said:
Honestly now, who can answer that part of your question about most of their reloading? A few of the guys here, maybe. The average reloader? No.
Click to expand...
Hence why I started this thread. There's been a lot of speculation why Hodgdon decided to not publish load data for WST and 9mm, a powder that produced very good accuracy for match shooters over the decades.

And in the spirit of "High Road", I stayed away from posting unpublished loads in the past but the "Great Component Shortage" changed that and THR members worked to develop and test currently unpublished powder loads like Promo, Herco and IMR Red for 9mm (of course posting with typical disclaimers).

Many seasoned match shooters I shot with cautioned me that WST was spiky towards the top. As a new reloader, I thought that was from powder's inherent burn characteristics but as I learned more about reloading variables and did case powder fill calculations based on different bullet seating depths, I realized some bullet/powder charge combinations could result in compressed loads, which I try to avoid.

So to benefit the THR members and guests, when I finally found published 9mm load data for WST, I wanted to share with considerations so we can all enjoy the accuracy benefits of WST without pressure issues:
  • We still don't know the groove diameter of S&W Model 39 pistol barrel used for Hornady #4 load data (Perhaps a member with that pistol could provide us that information)
  • So without groove diameter of test pistol barrel, those of us with more typical .355"-.356" barrels could use 3.8 - 4.0 gr as tested start charge
And for .355"-.356" barrels, 124 gr FMJ/RN loaded to typical 1.135" OAL would approach point of powder charge compression at 4.6 gr based on following calculations ... All of which will better inform those wanting to load WST for 9mm. I think this thread provided much usable data and information instead of just posting, "There's no current published load data from Hodgdon ... It's spiky at the top so avoid it ... You may have to go above 4.3 gr to make power factor but watch the OAL ... There are better powders with current published load data, etc."

"I measured several 9mm RMR 124 gr FMJ RN and longer bullets measure .598"

So using OAL/COL of 1.135", my max case fill is:

OAL - Bullet length = 1.135" - .598" = .537"
I measured some resized WIN cases and I got .747" as average resized case length.

So I subtract max case fill from average resized case length and I get .747" - .537" = .210"
I used the end of my dial calipers to mark the inside of the case and filled it with WST to mark and weighed the charge - 4.6 gr.

So for .598" length 124 gr RN bullet loaded to 1.135" OAL, max charge of WST before powder compression is 4.6 gr."​
 
forrest r said:
Don't know, I've been running/using 5.0gr of wst for +/-125gr cast bullets in the 9mm's for years.

I like to set the powder throw to 5.0gr of wst and load:
125gr 9mm's
158gr 357's
240gr 44sp's
200gr 45acp's

I've never found the loads too hot & have outstanding accuracy.
Click to expand...

For 9mm and 5 grains, was there enough room for normal recommended seating? I ask because when I loaded 4 grains the powder is fluffy so it fills with good spacing. Not sure about 5 grains.

Shot the test loads with 4 grains of WST. Yeah, the recoil is light. Wish I had a Chrono to check the speed. Cases are super clean and accuracy is excellent. I'm thinking I may work it up a grain at a time-keeping in mind the 4.6 grain limit as LiveLfe mentioned in his posting. Don't want to get spoiled with the recoil then be surprised when I shoot a regular load.

Overall, very satisfied and glad that I have found a powder for the calibers I shoot the most especially in today's times on shortages and long wait times.
 
Crazy Horse said:
forrest r said:
I've been using 5.0gr of wst for +/-125gr cast bullets in the 9mm's for years ... outstanding accuracy.
Click to expand...
Shot the test loads with 4 grains of WST. Yeah, the recoil is light. Wish I had a Chrono to check the speed. Cases are super clean and accuracy is excellent. I'm thinking I may work it up a grain at a time-keeping in mind the 4.6 grain limit as LiveLfe mentioned in his posting.
Click to expand...
Many powders, particularly fast burning powders like Bullseye, can produce accuracy all the way from max charge down to start and even below start charges as proven by many bullseye match shooters.

Now that we have a source of published load data to reference, WST could be, as demonstrated by many shooters over the decades, to be such flexible powder. I did my work up from 3.6 gr to 3.8 and 4.0 gr using longer 1.150"-1.160" and certainly saw enough space left to go up to 4.3 and 4.5 gr just eyeballing and moderator 9mmepiphany mentioned many match shooters going up to 4.3+ gr to make power factor requirement.

Lacking published load data, to stay on the "safe side", I decided 4.0 gr was good enough powder charge to recommend for THR members as it produced very good accuracy for me (Sub 2" groups at 25 yards).

Now that I have published load data to reference, I may conduct another powder work up towards 4.6 gr using 1.135" OAL to see which charge produces greater accuracy.
 
Let us know there results. This is The first time I load above max (but still below jacketed numbers).

It'll be good to know the results. But please do so with caution. Based on what I observed, I don't know if 4.6 would fit in the case. I'm thinking you'd be closer to a compressed charge load.

Thanks again for sharing your experiences.

CH
 
Crazy Horse said:
For 9mm and 5 grains, was there enough room for normal recommended seating? I ask because when I loaded 4 grains the powder is fluffy so it fills with good spacing. Not sure about 5 grains.

Shot the test loads with 4 grains of WST. Yeah, the recoil is light. Wish I had a Chrono to check the speed. Cases are super clean and accuracy is excellent. I'm thinking I may work it up a grain at a time-keeping in mind the 4.6 grain limit as LiveLfe mentioned in his posting. Don't want to get spoiled with the recoil then be surprised when I shoot a regular load.

Overall, very satisfied and glad that I have found a powder for the calibers I shoot the most especially in today's times on shortages and long wait times.
Click to expand...

If you think that 4 gr of WST is light in the recoil department you should try 3.3 gr of Clean Shot under the same bullet. It's about half the recoil.
 
Crazy Horse said:
For 9mm and 5 grains, was there enough room for normal recommended seating? I ask because when I loaded 4 grains the powder is fluffy so it fills with good spacing. Not sure about 5 grains.

Shot the test loads with 4 grains of WST. Yeah, the recoil is light. Wish I had a Chrono to check the speed. Cases are super clean and accuracy is excellent. I'm thinking I may work it up a grain at a time-keeping in mind the 4.6 grain limit as LiveLfe mentioned in his posting. Don't want to get spoiled with the recoil then be surprised when I shoot a regular load.

Overall, very satisfied and glad that I have found a powder for the calibers I shoot the most especially in today's times on shortages and long wait times.
Click to expand...

Yes there's enough room, don't have a problem with seating, setback or any bullet movement.

I use that 5.0gr load for 1 handed nra bullseye. A metal 1911 is heavy and easily absorbs what recoil there is from that load.

Something to keep in mind:
When I 1st started using that bullet/load/1911 I was getting 1100fps from a traditionally cast/lubed/sized bullet. PC'ing that bullet brought the velocities up to 1130fps. It's extremely common to get higher velocities with a pc'd bullets vs traditional cast bullets.

Hornady's #4 lists a 5.0gr/125gr bullet out of a 4" bbl @ 1050fps. It's not uncommon to gain +/- 50fps per 1" of bbl.

At the end of the day I gained 50fps with the 1" longer bbl + 30fps with the pc'd bullet.

Something else to think about:
A 9mm bbl has a chamber/throat/etc. A 4" bbl'd 9mm pistol actually has +/- 3.2" of actual bbl. The 5" bbl'd 9mm pistol has +/- 4.2" of usable bbl.

So when you look at #'s/velocities try to keep in mind how those #'s got there to begin with.

I'm not telling anyone to either use or not use wst in the 9mm's or what load to use. I can say I've used it for decades in the 9mm's (mostly 1911's) and still do to this day.

As far as that 5.0gr/125gr cast coated bullet combo being hot, the cases don't show any signs and I shoot it 1 handed.
 
THX. I used my ATI 1911 in 9mm. The weight does offset any recoil.

I'll be doing some test loads up to 4.5 gr at 10 rounds a piece to see how they perform.

One good thing I noticed yesterday was the I had no jams when I fired the WST with 4.0 gr of WST. Which is seems to get a bit finicky when I use 124gr ammo and CFE. I lowered the spring to a 10# variable spring. That took care of the issues, but prior to firing WST, I did get a couple of FTEs. So far it seems like WST is a good choice for that particular 1911.

CH
 
forrest r said:
As far as that 5.0gr/125gr cast coated bullet combo being hot, the cases don't show any signs and I shoot it 1 handed
Click to expand...
Love your stuff @forrest r , but by the time you see pressure signs on 9MM brass, it's up there. I do wonder what the pressure is, may very well be fine.
LiveLife said:
9mm 124 gr FMJ WST COL 1.150" Start 4.8 gr (1025 fps) - Max 5.4 gr (1100 fps)
Click to expand...
This makes it look like as long as we aren't too short, we'd be OK.
 
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