Powder for the 10MM

Hawk

Hawk

Well-Known Member
I've been working with a Glock Model 20 in 10MM.

I'm using 188 Gr., plain based, PC coated bullets.

Longshot seems to give the best performance with Blue dot a close second.

The problem I have is, Longshot reacts and sticks to the PC coating in a major way, and I'm concerned that the performance may degrade after a period of time.
Blue Dot has a significant flash and these loads may be used as hog stoppers in the woods on the deer lease and may be used at night. The flash may be a determent in this capacity.

Can anyone recommend a powder, with a flash suppressed coating, that would be similar to Longshot in burn rate.

I thought of BE-86, but I think it is closer to Unique and Power Pistol.
 
P

popper

Well-Known Member
CFE pistol is a bit faster but is supposed to be flash suppressed. I've used it in 40SW under 180gr plated., works OK.
 
Hawk

Hawk

Well-Known Member
I might have to try BE-86.
I've been doing research and BE-86 is composed of 40% nitroglycerin, which gives it a lot of energy for a given weight.
That may be why it is so hard to place in a burn rate chart.
Looks like it is more suited for lighter bullets in the 10MM than heavier ones.
About perfect for the .40 S&W.
 
fiver

fiver

Well-Known Member
BE-86 is flash suppressed.
it is in-between unique and herco in the burn speed though.
that's just a touch on the faster side of most 10mm loads and powders.
it looks like a perfect 40 short powder [maybe? shrug seen that before]

I don't have a 10mm and never gave it too much thought but I would probably look at AA#-7 and AA#9 and see what they have to offer.
I think everyone with a 10mm eventually ends up using or at least trying 800-X which is right close to Steel.
 
Hawk

Hawk

Well-Known Member
Do AA#7 and AA#9 contain a flash suppressant coating.
Couldn't find anything on their web site, so I sent them an e-mail asking this question.
 
358156 hp

358156 hp

At large, whereabouts unknown.
Hawk said:
Do AA#7 and AA#9 contain a flash suppressant coating.
Couldn't find anything on their web site, so I sent them an e-mail asking this question.
Click to expand...

Both are flash suppressed. I have a 357 SIG, and it shares the same powder specs as the 10mm. 800X is also a good choice for velocity, but I don't believe has a flash suppressant.
 
fiver

fiver

Well-Known Member
I don't think it has a flash suppressant and never used it in a short barrel so I can't say for sure.
 
Hawk

Hawk

Well-Known Member
I received this statement from Western Powders.

"Richard,

This are our pistol powders that have a flash suppressant added.

Accurate#5, #7, #11FS, TCM and Ramshot Silhouette. "

Apparently #9 does not have a flash suppressant.

Alliant's reloading tables have some pretty impressive numbers with BE-86 in the 10MM. A little more velocity than #7 and right at the velocity of #9. And BE-86 uses about 60% of the charge weight. Not a high priority, but a nice bonus.

It's also seems to be a pretty good match for the .40 S&W

At the prices BE-86 is selling for right now, I might try it first.

We'll be going back to the deer lease hog hunting in a couple of weeks. I'll have the opportunity to fire them at night to compare muzzle flash.
 
Last edited:
358156 hp

358156 hp

At large, whereabouts unknown.
Hawk said:
I received this statement from Western Powders.

"Richard,

This are our pistol powders that have a flash suppressant added.

Accurate#5, #7, #11FS, TCM and Ramshot Silhouette. "

Apparently #9 does not have a flash suppressant.

Alliant's reloading tables have some pretty impressive numbers with BE-10 in the 10MM. A little more velocity than #7 and right at the velocity of #9. And BE-86 uses about 60% of the charge weight. Not a high priority, but a nice bonus.

It's also seems to be a pretty good match for the .40 S&W

At the prices BE-86 is selling for right now, I might try it first.

We'll be going back to the deer lease hog hunting in a couple of weeks. I'll have the opportunity to fire them at night to compare muzzle flash.
Click to expand...

Hmmm, the guy I talked with earlier doesn't seem to have his facts together. I checked the SDS sheet for Accurate Powers & they don't give specific ingredient percentages, just "0-3%" for Potassium Nitrate, which seems to be most commonly added as a flash suppressant. Potassium Phosphate is also used, but is not on the AA SDS as a component.
 
Cherokee

Cherokee

Medina, Ohio
Back when I was loading/shooting 10mm, I had best results with AA7 & AA9. That was way before the new powders so there might be something better out there today. I reduced my inventory and my 10mm went away.
 
fiver

fiver

Well-Known Member
potassium nitrate would also be an oxygenator.
maybe that's how it works as a flash suppressor.

I don't know how 86 re-acts with powder coat, a good test would be how it reacts with the powder dump.
if after a day or two it starts to leave little stickies behind it would re-act with the P/C too.
 
Hawk

Hawk

Well-Known Member
358156 hp said:
Hmmm, the guy I talked with earlier doesn't seem to have his facts together. I checked the SDS sheet for Accurate Powers & they don't give specific ingredient percentages, just "0-3%" for Potassium Nitrate, which seems to be most commonly added as a flash suppressant. Potassium Phosphate is also used, but is not on the AA SDS as a component.
Click to expand...

I don't know, just reporting the email they sent me.
Was signed by a Don W.
 
Hawk

Hawk

Well-Known Member
I didn't think you were and I'm sorry if my post sounded short.
I was just letting you know who responded to my e-mail. Obviously, you spoke to someone and we got differing info.
 
fiver

fiver

Well-Known Member
Hawk. I have 86 here and some powder coated bullets [HF-red, and Randy's grey] I could drop 1-2 in a sample of powder and see what it does.
my first inclination is to say nothing, because the powder seems to me to be one of the 'dry' ones, but I could test it if you'd like.
 
Hawk

Hawk

Well-Known Member
I would be most grateful if you would let a bullet "soak" for a couple of days in BE-86 to see if the powder sticks to it. I would be buying BE-86 to load only PC'ed handgun boolits and if it reacts, it would be a pound of powder I would never use.


I've got several glass bottles with powder and a PC'ed boolit. In separate bottles, I have AA1680, Unique, Blue Dot, Red Dot, Longshot and Universal powders covering boolits.

I bought two pounds of Longshot and it is the only one that has stuck to the powder coating. It has taken the shiny finish off of the boolit and stuck to the coating.

The other boolits are clean and shiny.
 
fiver

fiver

Well-Known Member
okay 1 of red, 1 of Randy's grey, and 1 of a 3-1 mix of the 2 went in a cup of powder at 10:45 tonight.
I will check them in the morning and again later in the day and see what happens.
 
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