Bulleye powder ?

[lonewolf5347]

I been running both
124 gr. F.P. copper plated
135 RNFP
3.5 gr. At 1.145
Anyone have any idea what my FPS is.
9 mm .356 dia.

 

[armoredman]

Well, I get about 1075 FPS with 124 gr powder coated lead over 4.0 grains, shot through my chronograph, 4 inch barrel, if that helps. I discovered Bullseye by accident, and it is a great powder. At 3.5 grains I'd be surprised if you are bumping 1000FPS at all, probably a quite mild load. However, I am not an expert by any means, and just started using Bullseye less than a year ago.

 

[ArchAngelCD]

I been running both
124 gr. F.P. copper plated
135 RNFP
3.5 gr. At 1.145
Anyone have any idea what my FPS is.
9 mm .356 dia.

There is really no way to know. Small changes in bullet depth will increase/decrease velocity, sometimes greatly. Barrel length and bullet style also add to the mix. Sorry.

 

[larryh1108]

If my memory is correct (I use Bullseye for 9mm) the OAL for a flat point bullet seems kind of long.
I believe that 1.145 OAL is for a round nose bullet. HP and FP are usually closer to 1.06, 1.07, 1.08 OAL, etc.
So, a reduced load with an extended OAL would create a much slower FPS, no where near their published data
for the proper length and a full charge.

 

[BC17A]

940 to 970 fps.