Gary Reeder
Josh, somewhere along the line somebody gave you
Tuesday, August 27, 2019, 11:05

some wrong info. The 321 which is a 357 mag case using 311 or 312 bullets but has a 308 bore. That is normal and the main benefit is extreme accuracy. There is no problem with pressure with jacketed bullets.
Next the 300 Whisper, which some assholes stole from J.D. Jones and started calling it the 300 Blackout, will not beat the 30 Herrett or the 300 GNR when shot in equal length barrels. The Whisper is intended for suppressor use and is normally a sub sonic round.

Also extra cylinders are no problem either, although I don't really know what the 3057 GNR caliber you mentioned is.


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