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Vance · October 8, 2011, 07:51 PM

Rifleman55,
You might want to slug the barrel of the gun you are casting those boolits for. For my Ruger SR9 9mm, I found that I needed to size to .357 instead of .356. Accuracy got better.

Another bonus for me is I just bought a Ruger GP100 357 mag, and after slugging the barrel and cylinder, it turns out I can use the same sizer for those boolits also.

October 8, 2011, 07:51 PM	#10
Vance Senior Member Join Date: January 16, 2011 Location: North Bend, OR Posts: 743	Rifleman55, You might want to slug the barrel of the gun you are casting those boolits for. For my Ruger SR9 9mm, I found that I needed to size to .357 instead of .356. Accuracy got better. Another bonus for me is I just bought a Ruger GP100 357 mag, and after slugging the barrel and cylinder, it turns out I can use the same sizer for those boolits also.