.402 Diam. for loading .40 SW [Archive] - Glock Talk


View Full Version : .402 Diam. for loading .40 SW

05-01-2011, 14:28
I just recently started to load for my G22. I purchased a LW barrel for shooting cast bullets. I purchased some LSWC 155 grn that are sized to .402
I loaded up some and ran them accross the chronograph. I am using 6.0 grns of WSF and they are shooting about 1100 give or take 20 fps. This is a bit faster than I had expected but being that they are sized at .402 maybe not too bad. The question is this. Will the .402 diam slugs cause undue weaand or damage to my barrel being that most cast are sized at .401 and jacketed are usually sized at .400?

05-01-2011, 14:50
Not a problem it wont hurt your barrel.
My cast 40's are sized about .402


05-01-2011, 14:57
Lead bullets are supposed to b at least 0.001" larger than groove dia, you are fine. That does seem a bit fast for 6gr of WSF, what OAL are you using?

05-01-2011, 15:57
1.150 oal.

Zombie Steve
05-01-2011, 16:02
Lead vs. steel...Your barrel will be fine.