GCF
Member
I just measured my chambers. All six of them measured .4525" Does this give anyone any insight or can anyone suggest a bullet size based on this measurement?
A .452" sized bullet, should be a light push through (just right) in .4525" throats.
I load a 200LSWC-BB at .452" from Dardas, over 5.0 grains of TiteGroup - w/ WWLP, out of my plain vanilla 625-8. .469" taper crimp. Pretty much one ragged hole at just under 20 yards.
The Dardas bullets are extremely uniform, & near as I can tell, about 18BHN. You might want to check them out.
With a softer (12BHN) 200LSWC / .452", I get similar accuracy w/ 4.2 grains TiteGroup.
Hope this helps!
BTW, if you give up on the 625PC, you might want to give me a shout. Always looking for a new challange... ;=]