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Old 12-26-2012, 22:43   #6
fredj338
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Quote:
Originally Posted by Tom D View Post
.3535 seems a little small for a 9mm. My understanding is bullet/bore interference should be about .001/.002 so I'd say your not too small.
The issue w/ measureing a cast bullet driven into the lands is spring back. Plus most can not accurately measure below 0.001" w/ calipers, you would need a micrometer to be more accurate.
I am betting you air cool the clip ww, things will get much better. IME, there is little to be gained by super hard bullets @ most handgun pressures. Maybe for max loads, but not where the OP is at. I run clip ww, air cooled, to 1500fps in my 45-70 w/ little leading.
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Last edited by fredj338; 12-26-2012 at 22:44..
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