I just saw these in the Midway catalog and was thinking they might be great for the 300 whisper/ Blkout has anyone use them? I'm thinking the might be a pretty good choice.
I've played around with them a bit. COAL of 1.885", I've worked up to 19 grains of Acc. 1680, settled for 18.7 grains as my accuracy load. With a 4MOA red dot I was getting 1" 5-shot groups at 50 yards.