Power Pistol for .40 S&W and 10mm

[Snowdog]

I've squared away a decent recipe for my poly coated 9mm using Winchester 231, now I'm looking to load some .40S&W and 10mm.

I'm out of Winchester 231, but I have a few pounds of Power Pistol.
I've just powder coated some 145gr SWC and 175gr TC that I cast using Lee molds and Lyman #2.

With Power Pistol and these bullets, does anyone have any load data for their pet loads in either .40 S&W or 10mm?

I'll load up a few hundred .40S&W first, likely using just 145gr SWC. Then I'll move on to the 10mm using primarily 175gr TC.

The brass is once fired and Winchester (WSP/WLP) primers.

Thanks in advance!

 

[ssyoumans]

Power Pistol is a great powder for both 40 S&W and 10mm. It can deliver on the velocity but is a very loud and flashy powder.
Most people will be using it to push plated or jacketed bullets vs. lead due to the potential for leading at 40 S&W and 10mm speeds if the hardness and sizing isn’t perfect.

 

[GooseGestapo]

If your barrels have conventional rifling you’ll be ok with PowerPistol as long as alloy is adequate and you don’t hotrod the pressures.
I mostly use LongShot. But PP comes in a close second.
For light cast bullet loads In Polygonal rifled bores, I use recommended starting loads of BullsEye.

 

[Toprudder]

Power Pistol was the first powder I used, starting with 40 and then 9mm. It is still one of my favorites. I shoot mostly plated bullets in those, at slightly reduced loads. It burns clean.

Not too long ago, I worked up loads in 10mm using Power Pistol, AA#9, Blue Dot, and BE86, using 180gn plated bullets. Of those, I like the BE86 loads the best, although I had good results with Power Pistol.

 

[Rule3]

You can use the ALLIANT data for the next higher weight bullet. Their data is MAX data so reduce by 10%. As you are shooting lead then reduce it by another 10 % and work up, Yes, FMJ data can be used for lead, the velocity may increase a little.

Barrel leading and all that will vary depending on YOUR casting. I use coated bullets so not a concern to me

http://www.alliantpowder.com/reloaders/powderlist.aspx?type=1&powderid=8&cartridge=30

 

[LiveLife]

powder coated ... 145gr SWC and 175gr TC ... Power Pistol and these bullets, does anyone have any load data for their pet loads in either .40 S&W or 10mm?

I'll load up a few hundred .40S&W first, likely using just 145gr SWC. Then I'll move on to the 10mm using primarily 175gr TC.

You can use ... data for the next higher weight bullet.

+1. I often reference load data for slightly higher bullet weight when I cannot find load data for bullet weight I am using.

If you are sizing your coated bullets to .401", I would use more conservative lead load data instead of plated/jacketed load data that used .400" sized bullets.

Here are load data for 155/180 gr lead bullets from 2004 Alliant load data - http://www.thehighroad.org/attachment.php?attachmentid=182147&d=1364769070

• 40S&W 155 gr Lead Power Pistol OAL 1.125" Max 7.0 gr (1,115 fps) 32,300 PSI
• 40S&W 180 gr Lead Power Pistol OAL 1.125" Max 6.9 gr (977 fps) 32,700 PSI

• 10mm 155 gr Lead Power Pistol OAL 1.250" Max 9.5 gr (1,320 fps) 33,000 PSI
• 10mm 180 gr Lead Power Pistol OAL 1.250" Max 8.7 gr (1,235 fps) 34,700 PSI

Here are current Alliant load data for 180 gr copper plated/FMJ bullet - http://www.alliantpowder.com/reload...owderlist.aspx&type=1&powderid=8&cartridge=29

• 40S&W Speer 180 gr CPFN Power Pistol OAL 1.120" Max 7.6 gr (1,097 fps)

• 10mm 180 gr FMJ Power Pistol OAL 1.250" Max 9.3 gr (1,296 fps)

Here's Speer 155 gr load data for thick plated TMJ bullet - https://www.speer-ammo.com/download...caliber-10mm_400_dia/40_Smith__Wesson_155.pdf

• 40S&W 155 gr TMJ Power Pistol OAL 1.120" Start 8.0 gr (1112 fps) - Max 9.0 gr (1213 fps)

And Speer 180 gr load data for TMJ - https://www.speer-ammo.com/download...0_caliber-10mm_400_dia/40_SmithWesson_180.pdf

• 40S&W 180 gr TMJ Power Pistol OAL 1.120" Start 6.2 gr (890 fps) - Max 7.2 gr (1013 fps)

 

[RealGun]

You can use the ALLIANT data for the next higher weight bullet. Their data is MAX data so reduce by 10%. As you are shooting lead then reduce it by another 10 % and work up, Yes, FMJ data can be used for lead, the velocity may increase a little.

Barrel leading and all that will vary depending on YOUR casting. I use coated bullets so not a concern to me

http://www.alliantpowder.com/reloaders/powderlist.aspx?type=1&powderid=8&cartridge=30

I think of coating as replacing lube rather than serving as a gas check and allowing hot powders and high pressures. I think of coated as still having limitations. Am open to correction.

 

[Rule3]

I think of coating as replacing lube rather than serving as a gas check and allowing hot powders and high pressures. I think of coated as still having limitations. Am open to correction.

Everything and anything has "limits" .

 

[cheygriz]

Power Pistol is a good powder for the .40. I prefer Longshot, but PP works well.

I think it's a bit fast for10MM, but it should work well.