Hoot wrote:
I am surprised that you clocked them so fast. I forget, were you using a stab crimp or just the taper crimp. Not that it matters because if you're getting 2k fps, you're not getting that with only 22kpsi. Can't happen with a 300 grainer in this caliber. As a matter of fact, I went off the reservation and tweaked the QL equates to get a 300gr bullet up to 2k fps in this caliber. Not hard with slower powders and longer barrels, but with Lil Gun quickly pushing the bullet at that speed, regardless of how you got it to do that, you will be up into high pressure.
Hoot
i dont have my notes in front of me, but a max charge of lil gun was just over 2000 fps with the 300gr XTP mag in my 20" bushmaster barrel according to magnetospeed
didnt shoot for Poo, but it was cruising along and man did it have some thump to it on the recoil side
[edit] taper crimped to 0.474