9mm major

[dubltap]

what powder will push a 147 grn 9mm to 1100 +/- fps using a 5 1/4" barsto ported barrel.

[Don_B]

Silhouette. Probably around 6.0-6.2 but work up your load. 

[Khaot1c]

How close to Power Pistol is Silhouette?

  I've had really good luck with PP in slightly lighter bullets.  Curious if you would have enough case volume to get a 147 to 1100 though. 

 

[AHI]

3N38 6.2 GR

Book max is 6.9@1207fps

if you end up needing a little more.

Edited April 27, 2020 by AHI

[zzt]

The data above is for a 147 HAP at 1.142" OAL.  You may have to throat your Barsto barrel to chamber that length.  Come to think of it, I've never had a Barsto barrel that did not need throating.

[echotango]

I used WAC with a kkm with holes.  But went back to 121's. 

[dubltap]

Thanks for the posts...Hs6 looks promising, also.

[Sarge]

22 hours ago, dubltap said:

what powder will push a 147 grn 9mm to 1100 +/- fps using a 5 1/4" barsto ported barrel.

If you want to make MAJOR you’ll need to get to 1,170 to make 172PF