Another 30cal subsonic thread

[Cigar]

Loaded some up something like two months ago.

Still haven’t been to the range to test them!

Bought in March, loaded in April, none fired yet - s**t I’m slack!

[Cigar]

Bought in March, loaded in April, none fired yet - s**t I’m slack!

Finally made it to the range today!
I still have some work to do. The 151gr cast projectiles are just subsonic (1106fps) with 8gr of Trailboss, but the Sub-X 190gr are way slower, 696fps with 8gr, 854fps with 9gr.

[Shearer]

Finally made it to the range today!
I still have some work to do. The 151gr cast projectiles are just subsonic (1106fps) with 8gr of Trailboss, but the Sub-X 190gr are way slower, 696fps with 8gr, 854fps with 9gr.

Ok. I haven't chronographed mine but am using 11gns TB and they seem to go supersonic at 12gns (16" T3). It will be interesting to see your speeds if you go up a few grains.

[Cigar]

Finally made it to the range today!
I still have some work to do. The 151gr cast projectiles are just subsonic (1106fps) with 8gr of Trailboss, but the Sub-X 190gr are way slower, 696fps with 8gr, 854fps with 9gr.

I have settled on 11.5gr of Trailboss with the Sub-X, gives me 1094fps. 10gr was 949fps, 12gr was 1133fps.

I'm surprised at the difference the projectile makes, 7.5 grains for the 151gr cast bullet and 11.5 for the 190 Sub-X...that's over 50% more powder!