Special Interests - Groups & Societies > Colt Firearms
Correct bullet size for 3rd gen. SAA?
Trailrider:
--- Quote from: Fox Creek Kid on April 16, 2010, 08:48:49 PM ---Scientifically impossible. Your best bet is to go chamber throat diameter for bullets.
--- End quote ---
Hunh? How is it impossible to go .001 over throat diameter? I shoot Ruger Old Model Vaqueros in .44-40 and I shoot .430" bullets, and the throats are .425"! With hard cast bullets the slugs are squeezed down and then re-expand on leaving the throat. The problem with going .001 over throat diameter is if the throats are SO large that you can't chamber the rounds. I HAVE had that problem with the original cylinder chambering in the .44-40 Rugers.
Sagebrush Burns:
Shooting smokeless loads in my Colts (45 Colt caliber) I have tried both .454 and .452 bullets and noticed no appreciable difference in accuracy or barrel leading. My experience would lead me to believe that lead hardness and soft lube would be more important than bullet diameter.
Fox Creek Kid:
--- Quote from: Trailrider on April 17, 2010, 09:00:14 PM ---Hunh? How is it impossible to go .001 over throat diameter? I shoot Ruger Old Model Vaqueros in .44-40 and I shoot .430" bullets, and the throats are .425"! With hard cast bullets the slugs are squeezed down and then re-expand on leaving the throat. The problem with going .001 over throat diameter is if the throats are SO large that you can't chamber the rounds. I HAVE had that problem with the original cylinder chambering in the .44-40 Rugers.
--- End quote ---
Trailrider, on many 44-40 revolvers the problem is the finish reamer and not just only the throat diameter as SAAMI specs for the 44-40 are very ¨wide¨. Also, you´re bullets are not very hard if you´re able to swage them down 0.0025 (either side) by thumb pressure and as such you are not really shooting an oversized bullet as you yourself have stated that you are ¨swaging¨ the bullets down upon chambering.
On another note, it´s wise to allow 0.0005¨ - 0.001¨ for fouling if you´re doing CAS style shooting. Especially real BP. That´s why I shoot soft bullets sized to 0.430¨ in a 0.431¨ throat.
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