Quote:
Originally Posted by mikld
I believe you need to find the gun's critical dimensions, groove diameter and cylinder throat diameter. If the throats are .429" and the barrel is .429" (SAAMI standard), you may get poor accuracy and barrel leading. Slug the barrel and slug the cylinder (yep you can get very accurate measurements slugging a cylinder). "Drop through", "push through" are not measurements, and for me and my guns barely better than a WAG...
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No, push through and drop through are not measurements and I dont believe I indicated they were but they have worked before well enough to help people make an initial assessment and from everything Ive ever read neither is slugging a barrel or chamber when youre dealing with measurements as small as we are talking about.