WB
Please measure the lower shank/heel
Saturday, April 10, 2021, 10:24

I'd love to figure how thick his powder coating is. I've been able to bump up some of my bullets with coating only. I've even considered installing gas checks, THEN powder coating, and doing a final size run.

I need to order a special LEE sizer for the .400 GNR. Due to the varied thickness of .30-30 brass you find laying about many bullets make the cases too thick once loaded. Running them through the sizer loaded in effect "sizes" the bullet to about 0.398". I have switched to a small batch of .38-55 Starline brass purposely made to about 0.007" thickness compared to some .30-30 that are 0.011". This allows me to use that .38-55 brass to make .400 GNR and use .401" bullets.

I wondered if the heel being bumped up was influencing the chambering. Not only did it bump up the bullet dia. 0.002" but I bet it had to have bumped up the heel too?! What ya gonna do about that pappy! lol Depending on the thickness of the brass it might not be a concern.