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Old February 6, 2011, 06:07 AM   #2
Senior Member
Join Date: August 6, 2006
Location: Republic of Texas
Posts: 506
I just purchased a new 4" RedHawk. The cylinder chambers were a tight .451". So if I used a .452" bullet whether lead or copper, it was being swaged down to. 451" before it even hit the barrel. I sent it to and he reamed them to .4525".

Since you already have 45 ACP bullets at .451" take one and see if it will drop through the front of the cylinder. I am sure it will but take note of the tightness. I could not even push a .452" bullet through mine to start with. Try the lead .452" bullets and see if they will slide through. This should tell you where you are at chamber diameter wise. Hope this helps some.
5.56mm, reach out and touch something. .458 SOCOM,reach out and knock something down.

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