9mm 124 RMR Jacketed Hollow Point *NEW*

Status
Not open for further replies.
Let us know how they work out for you. Looks like a pretty good deal on em.

WB
 
I've been shooting their match plated 124 gr. which measure .356. Anyone want to speculate how the .355 bullets would do in .38 super? I'd like to try some, but haven't shot .355 in my pistol.
 
Wildbillz said:
Let us know how they work out for you. Looks like a pretty good deal on em.

WB
Click to expand...

I will put these through my 357sig setback, ogive and bathroom scale test before loading them in 357sig and will post a review. I will only load them in 357sig once they pass all test tests.

For 9mm it should be straight forward and I will post something once I have been out to the shooting range.
 
Jake posted expansion tests on facebook a week or so ago.

He had them loaded at lower charges with fast powder, they were subsonic, and shot them into water. They she'd their jacket but the expanded nicely. I'm thinking of making them a defense load for my carry gun.
 
Got the email form RMR announcing them the other day.
Nice looking. :) Price is right.
Got to get some ordered!
Please let let us know how they work for you.
 
Jake tested them sub-sonic and they still shed their jackets. At slow speed they should make a good self defense bullet and maybe they have to shed their jackets at sub sonic to get that beautiful expansion.

Don't know what to think about that right now in at supersonic speeds. I think I'll take a side line on this one for now, and wait and watch.

Maybe Jake or Ryan could post as to how fast they can be safely tested without leaving a jacket in the barrel.
 
tightgroup tiger said:
Jake tested them sub-sonic and they still shed their jackets. At slow speed they should make a good self defense bullet and maybe they have to shed their jackets at sub sonic to get that beautiful expansion.

Don't know what to think about that right now in at supersonic speeds. I think I'll take a side line on this one for now, and wait and watch.

Maybe Jake or Ryan could post as to how fast they can be safely tested without leaving a jacket in the barrel.
Click to expand...

There is no indication on the RMR website that indicates these are for sub-sonic only. If that is true, then loading it in 357sig will definitely be a no-go.

Hopefully Jake or Ryan will chime in with some safe velocity numbers.
 
vaalpens said:
There is no indication on the RMR website that indicates these are for sub-sonic only. If that is true, then loading it in 357sig will definitely be a no-go.



Hopefully Jake or Ryan will chime in with some safe velocity numbers.
Click to expand...


They are safe to shoot at 357 sig velocity, Jake has already said they will work for it.

As for shedding the jacket, as long as the expansion is decent, which it is, who really cares? It's not like these are bonded bullets, and the price reflects that they aren't. I plan on trying then and possibly switching over.
 
ljnowell said:
They are safe to shoot at 357 sig velocity, Jake has already said they will work for it.

As for shedding the jacket, as long as the expansion is decent, which it is, who really cares? It's not like these are bonded bullets, and the price reflects that they aren't. I plan on trying then and possibly switching over.
Click to expand...

ljnowell, thanks for the response. It does not bother me if the jacket separates after impact. I was just commenting on the following:

Maybe Jake or Ryan could post as to how fast they can be safely tested without leaving a jacket in the barrel.
Click to expand...

Can you share the email or post where Jake indicates they are safe to shoot at 357sig velocity.
 
vaalpens said:
ljnowell, thanks for the response. It does not bother me if the jacket separates after impact. I was just commenting on the following:







Can you share the email or post where Jake indicates they are safe to shoot at 357sig velocity.
Click to expand...


I will have to look around to find it. I believe he said it on their facebook page. The concern isn't really leaving a jacket in the barrel, as the base if the bullet is closed, being a hollow point. It's just failure of the bullet on target.

To me shedding it jacket during expansion really isn't that big of a deal if it still expands.

From Jake on facebook:

They can handle high velocity just fine and they work in .357 sig.
 
I will be getting 1000, quality, 124gr jacketed HP RMR bullets for 11.42¢/each, delivered.

Jackets getting shed in the bore are not a concern due to the closed-base and if some/all of the jackets separate upon impact, so long as the expansion is decent, I really do not care.

FWIW. ;)
 
I received the new RMR 124gr JHP bullets in the mail today. As always the shipping from RMR was very fast. These bullets look great and I assume they work well in 9mm.

My plan for these bullets are to load them in 357sig, so I put them through my normal test routine:

-The diameter is .3555", which is good for 357sig
-The average length is about .5813", which is longer than what I normally load in 357sig.
-Two dummy rounds were created
-I was able to seat them with a COL of 1.148" and 1.149" (SAAMI max is 1.140") before it started to look like the ogive was getting below the case mouth.
-Even with the longer COL, the bullets did pass the plunk test in my P229. I was able to rotate the dummy rounds in the barrel which is good.
-The bullets were then cycled through my gun 4 times, showing setbacks of .006" and .007". This is acceptable since the end result was a COL of around 1.142"
-I then preformed a bathroom scale test, and was able to push around 18lb on each without pushing the bullet into the case.

I have not decided yet if I am going to load these in 357sig, but will probably create a few more dummy rounds just to see how I close I can get the COL to 1.140", and pass all my tests again. If the next few dummy rounds also pass my tests, then I would probably feel comfortable loading them in 357sig.
 
I am moving here from my thread

http://www.thehighroad.org/showthread.php?t=786102

because I feel it''s better to continue this here..

In the other thread
9mmepiphany asked
As hard as the RMR 124gr FN are, would you expect there to be much difference in going to the 124gr HPs?
Click to expand...

Walkalong was wondering
It would be interesting to see if someone who has both could load them to the same depth in the case (Not OAL) with the same powder charge/primer and see.
Click to expand...

So I said I would do some tests when my HPs arrive and see if I can help out because I am curious as well about the two different RMR bullets.

After some requested feedback,
the first round for me to compare the RMR 124 FN and the new RMR 124 HPs will be CFE pistol, WSF, BE86, HP38 and maybe Titegroup.
CFE pistol is sort of an unknown as I have not done a lot of testing with it and the FNs but initial tests look promising.
I will be aiming for about 1050 fps or so for the first round.
Most of my favorite loads are around 1050 with 124/125s.
thinking about
4.5 CFE pistol
4.3 WSF
4.0 HP38
4.6 BE86
3.8 Titegroup
or something close.

The main test will be using the same charges with both bullets.
I am also planning on trying do do a quick workup with the HPs to see what they like.
(need to do some .223 work ups as well, but I think I will do the 9mm HPs first. :) Wish I was retired and had more time but that's a couple years down the road)

My 124 RMR FNs are about .559 - .56 vaalpens reports the HPs are about .5813 so my target OAL for the HPs will be .021 longer than the FNs
(will need to verify HP length but I sure vaalpens has good numbers)
so probably FN @ 1.10, HP @ 1.121 assuming the HPs plunk at that length.
I have a couple of different 9s and 1.10 with the FNs is an easy fit in all of them.
(hopefully this is correct, if my math is off let me know, mind numbing day a work dealing with email server that was trying to die :banghead:)



At last look my bullets have left the PO @ SPOKANE, WA (a black hole for reloading supplies by the way, but this time it looks like they escaped being caught there :)) so hopefully I will have them by Friday.

PS: Hopefully I won't be suffering from CHS when I first test them. :D
 
Last edited:
RMR 124 FN 4.7 BE86 OAL 1.10
1088.00
1077.00
1091.00
1085.00
1079.00

Average 1084.00
ES 14.00
SD 5.92
PF 134.42

Is what I got in my Springfield 1911 9mm 5" with the FNs.
It will be interesting to see how much different the HPs are.
 
I will only start test loads with the JHP's after this week. I just got some BE-86, so all my load workup is with BE-86 this week.

Dudedog said:
My 124 RMR FNs are about .559 - .56 vaalpens reports the HPs are about .5813 so my target OAL for the HPs will be .021 longer than the FNs
(will need to verify HP length but I sure vaalpens has good numbers)
so probably FN @ 1.10, HP @ 1.121 assuming the HPs plunk at that length.
I have a couple of different 9s and 1.10 with the FNs is an easy fit in all of them.
(hopefully this is correct, if my math is off let me know, mind numbing day a work dealing with email server that was trying to die :banghead:)
Click to expand...

I had some of the RMR FP's, but all have been consumed. The average length I have for the RMR FP's is .5583" (0.5545" - 0.5620"), and for the JHP's is .5813" (0.5805" - 0.5820"). So the difference in length for me is .023" which is close to you .021". You math looks good.

I have been loading the FP's with a COL of 1.065", and will probably load the JHP with the same COL. My thinking is that the JHP will need some additional pressure to get the same velocity as the plated bullet, and the jacketed bullet can handle more. If I load with 1.065", then I will definitely work up my load again just to be safe.

I loaded a dummy round at 1.065" and it passed the plunk and cycle test.

Good luck and be safe.
 
My caliper only measures to .123 places so .559X might be .559 or .560 after rounding. As I recall when I measured some before most came out around .558.
Will need to double check.
Thanks again vallpens for the measurements. I appreciate it.
I am guessing the HPs might want more powder but though I would do a head to head just to see the results.

Looking forward to everybody else's results as well.
 
Status
Not open for further replies.

Similar threads

Dudedog
  • Locked
"New" bullets from RMR
2
Replies
27
Views
4K
vaalpens
vaalpens
wiiawiwb
  • Locked
9mm bullet profile
Replies
4
Views
743
Dudedog
Dudedog
vaalpens
  • Locked
RMR 124 grain flat point 9mm
Replies
22
Views
3K
vaalpens
vaalpens
S
  • Locked
load data for sport pistol for short OAL cz 9mm
Replies
17
Views
3K
ray15
ray15
vaalpens
  • Locked
RMR 9mm 124gr JHP in-house bullet - evaluation
2 3 4
Replies
81
Views
13K
Jonesy814
Jonesy814
Back
Top