I just finished up a 300 Whisper and had to do a few things to get it to cycle. I drilled the gas port in the barrel to .120 and added and adjustable gas block. Hope this helpsI have read that heavy, subsonic rounds do well in a 1:8 twist. I am just starting to look seriously at this cartridge myself, building an upper for my AR-15.
I got the same e-mail, one round is a 110gr supersonic and the other is the 208gr A-Max that is subsonic.This was moved from Rifles and Rifle Cartridges forum due to the speciality of the cartridge to the Wildcat Cartridge forum.
This morning in reviewing my emails, found one from Hornady which says they're starting to load for this. That takes it from proprietary status to commercial and with that, we'll put it back in the previous forum. Sorry for the run-around, folks.
The 240gr bullets, at sub-sonic velocities would expand to leave very large exit wounds? I've got to say, I'm surprised by that. Not that they penetrate completely, but that the exit wound would be much larger than 30 caliber, with those slow, heavy bullets. Do they make a highly frangible 240gr bullet?I'll tell you this, the 110gr and 240gr bullets will punch holes through deer the size of baseballs. I had one in a 16" A4 with a little 3-9x40 Leupold and it was my go to gun for damage tag deer. Adam