I’m curious if other ‘lead heads’ have seen the accuracy and statistical ballistic benefits I have in running ‘oversized’ slugs through their SA firearms. I’d like probe this subject matter without wading through reams of historical subject matter to find a relative thread…, so here goes.
It occurred to me that both of the historical approaches to enhanced accuracy with SA and DA revolvers may not ultimately provide the pinnacle of precision. Those have been, .001-.002” over groove diameter and .0005”-.001” over cylinder throat diameter. And, of course, numerous variations of each.
It occurred to me that many revolver cylinders incorporate a leade, or ‘short throat’ if you will, just ahead of the chamber culminating in the throat. If this is the case, why not handload incorporating consideration for this mechanical reality as one would for a rifle chamber…? So I did, which of course means that I sized projectiles for the origin of the leade and not the throat, ie, fat bullets.
Long story shorter, I’ve found the results to-date clearly indicat an advantage in accuracy and ballistic consistency with this approach. I’ve employed alloys of 8-10 BHN with no appreciable signs of pressure increase and velocities running to 1100 fps. Interesting huh? I plan to investigate this theory much further with additional calibers [began with the 45 Colt], but am very pleased with results thus far…thoughts?
