CQB45ACP
Member
Smokiness with W231 was a big deal for me this past Monday morning.I've gone pretty low on my charge weights for 230gr fmj's. I think I got as low as 4.2gr W231 before it wouldn't cycle the slide (I would have to check my notes to be certain). Never had a squib. I will say that the slide was slowing noticeably a couple tenths of a grain above that load, BUT I was also running a torture test to see how long the gun would function without cleaning. IIRC the gun went about 650 rounds before having any stoppages without cleaning, although I did apply a drop or two of oil on it.
Brass thickness can have an effect on function as well. Last week I loaded 200 of the Acme 185gr swc's, 100 in Starline brass, 100 in Winchester brass. All of the Winchester rounds plunked and twisted in my tight chamber gun, most of the Starline rounds plunked but wouldn't twist. The Starline rounds that didn't plunk would fit my chamber with a slight press from my finger.
This ^^^^ 100%
chris
At 4.5gr 230RN 1.260” I was choking as bad as Sport Pistol light loads.
Will climb back up closer to 5.0gr next time.
One possible contributor—I was on end lane with wall on my immediate left so air circulation was impeded I suppose.