Junkyard Load

[GlobalMapper]

Thanks guys, just picked up a couple of pounds of HS-6!

 

[rfwobbly]

By TiteGroup being "Hot" I thought it was referring to how hot the gun got temperature wise not velocity wise. I never noticed but that may be because of my range habits.

• All "fast" powders burn at higher temps compared to "slower" powders from the same maker
• Most of that thermal energy comes from the burning of nitroglycerine
• If you want faster burn rates without excess heat, then you need to look at "single-base powders" which have no nitro content
• If you want to know the nitro content, then simply Google the powder's "MSDS sheet" which summarizes all the chemical hazards of the product

 

[rfwobbly]

Thanks guys, just picked up a couple of pounds of HS-6 !

Although HS-6 is great for fairly hot loads in 9mm, it's almost too "slow". Thus, low-to-medium loads may leave a sooty mess. Suggested Starting Loads may put you off, but don't get discouraged. Keep working up through the range and you'll be rewarded with clean loads and excellent accuracy.

 

[GlobalMapper]

Although HS-6 is great for fairly hot loads in 9mm, it's almost too "slow". Thus, low-to-medium loads may leave a sooty mess. Suggested Starting Loads may put you off, but don't get discouraged. Keep working up through the range and you'll be rewarded with clean loads and excellent accuracy.

Thanks Wobbly, appreciate the good info. I'm looking forward to experimenting with it. Really thankful for the guys that gave me the heads up on Powder Valley, I had pretty much given up searching.

 

[rfwobbly]

HS-6 is really just a single-purpose powder in 9mm. It's not one of those full-range powders you can use for target OR self-defense loads.

Its one "saving grace" is that it does SD really well.

 

[PO2Hammer]

After all this work, we'll be expecting a range report.

 

[GlobalMapper]

After all this work, we'll be expecting a range report.

Absolutely! Gonna order a chrono this coming week. I've been wanting one for a long time and now seems appropriate.

 

[WestKentucky]

• All "fast" powders burn at higher temps compared to "slower" powders from the same maker
• Most of that thermal energy comes from the burning of nitroglycerine
• If you want faster burn rates without excess heat, then you need to look at "single-base powders" which have no nitro content
• If you want to know the nitro content, then simply Google the powder's "MSDS sheet" which summarizes all the chemical hazards of the product

MSDS terminology has been replaced by SDS but the terms are used interchangeably. You can usually find the sheets under either name but if you strike out with MSDS then SDS is another option to search.

 

[GlobalMapper]

Okay, got some info on the Titegroup and the HS-6. Recall from above that I am using CCI 550 Magnum primers, and Everglades 115g JHP RN bullets loaded in mixed headstamps.

Temp 44 degrees Pressure 30.00 in Hg

Titegroup 4.4g COAL 1.135 5 shot average 1154 fps

Hodgdon HS-6 6.8g COAL 1.125 5 shot average 1233 fps

The HS-6 loads were pretty hot. The recommended starting load for this bullet is 6.7g and given the velocities with 6.8g and the mag primers I might back it down to that. Just out of curiosity I put a Hornady Critical Duty +P 123g Flex Lock through the Chrono and it registered 1167 fps.

Any comments or suggestions would be greatly appreciated.

 

[PO2Hammer]

If the HS-6 is burning cleanly at that speed, and there are no pressure signs, I wouldn't change a thing.
Hot is what you wanted IIRC.

 

[GlobalMapper]

Thanks Hammer, the only signs I observed was the primers looked a little flattened but the cases looked fine. Really like my new ProChrono DLX and the phone app.

 

[GlobalMapper]

If the HS-6 is burning cleanly at that speed, and there are no pressure signs, I wouldn't change a thing.
Hot is what you wanted IIRC.

BTW, thanks for you your help and guidance. Godspeed to you and yours in these difficult times.

 

[Dudedog]

Looks like HS-6 is giving you what you wanted, much better for "Hot" loads than a faster powder.

If the primers look a little flat you are probably ok but you might want to drop down .1 and see what they look like and how much vel you lose.

 

[Telum Pisces]

Mag primers should not affect your velocity or pressures. There have been multiple real life pressure and velocity tests between SPP, SPM, and SRP for 9mm and non showed a difference or increase on pressures or velocity.

 

[GlobalMapper]

Looks like HS-6 is giving you what you wanted, much better for "Hot" loads than a faster powder.

If the primers look a little flat you are probably ok but you might want to drop down .1 and see what they look like and how much vel you lose.

Will give it a try. I can't thank everyone on this board enough for the great advice and guidance. Mission accomplished.

 

[GlobalMapper]

Mag primers should not affect your velocity or pressures. There have been multiple real life pressure and velocity tests between SPP, SPM, and SRP for 9mm and non showed a difference or increase on pressures or velocity.

Thanks Telum, I wish I had seen this earlier as I was a bit apprehensive. All of my SD weapons run factory springs so GTG. "Telum Pisces", would make a great name for a sportfishing boat!

 

[Dudedog]

There have been multiple real life pressure and velocity tests between SPP, SPM, and SRP for 9mm and non showed a difference or increase on pressures or velocity.

Walkalong did a test here with one of his loads and as I recall there was around 30fps difference in some primers.
If you have more FPS there has to be more pressure given nothing else was changed but the primer.

https://www.thehighroad.org/index.php?threads/9mm-primer-test.840256/page-3#post-10905312

 

[Telum Pisces]

Thanks Telum, I wish I had seen this earlier as I was a bit apprehensive. All of my SD weapons run factory springs so GTG. "Telum Pisces", would make a great name for a sportfishing boat!

Yeah, I've used SPM and SRP in my pistol loads and not had any problems. I used to spear fish all the time and had a boat with that name!

 

[GlobalMapper]

Very cool. I lived in Abaco for ten years and had an offshore charter fishing business based out of Boat Harbour Marina. We shot a lot of fish and sea roaches in our spare time; dove up plenty of conch as well.

 

[GlobalMapper]

Okay, back to the Junkyard. With the help of some good folks on this board I was able to locate some IMR 8208 which I have used in the past behind 168 grain SMKs with good luck. I have some Hornady 150 SP Interlocks, some CCI #200 primers, and some new Lake City brass. I'm having trouble locating any definitive load data for this powder-bullet combination in my manuals or online.

Any information on this combination would be greatly appreciated.

 

[Dudedog]

.308 Win?
Hodgdon has some data but not for that bullet, checked Lyman they have a Hornady 150 Sp but no 8208 data.
I would try emailing Hodgdon/IMR and asking them if they have anything.
They may or may not but the email is free....

 

[GlobalMapper]

Thanks Dude, I'll get in touch with them.

 

[Dudedog]

PS: Maybe someone with the Sierra manual will chime in.

 

[rfwobbly]

Okay, got some info on the Titegroup and the HS-6. Recall from above that I am using CCI 550 Magnum primers, and Everglades 115g JHP RN bullets loaded in mixed headstamps.

Temp 44 degrees. Pressure 30.00 in Hg.
Hodgdon HS-6 6.8g, COAL 1.125". Five shot average 1233 fps.
The HS-6 loads were pretty hot. The recommended starting load for this bullet is 6.7g and given the velocities with 6.8g and the mag primers I might back it down to that.

Just out of curiosity I put a Hornady Critical Duty +P 123g Flex Lock through the Chrono and it registered 1167 fps.

In the recipe you used, what was the stated velocity at Max Load ? Compare that to your velocity.
Watching the primers is a very bad safety plan. By the time they show disturbing signs you have far exceeded Max Chamber Pressure.
It's good to check the primers and observe the case, but the chrono results take precedence.

 

[GlobalMapper]

Velocity at maximum listed load of 7.0 grains is 1234 fps which is in the neighborhood of what I am experiencing. I did see some flattening in the primers but no other signs of over pressure. I hope I'm on track because I loaded 500 rounds with this recipe! Got another thousand rounds of brass on the way for some 115G Remington JHP that I recently acquired.

I'm no guru, just trying to build some more stock. Thanks for the input.