Slugged the revolver and...

[brewer12345]

After having some leading issues in a security six, I slugged it today. The barrel is right at .357. The cylinder throats vary from .3565 to .358. Most appear to be .357 to .3575. So should I get the cylinder throats reamed? What should they be slugging at?

[wjham77]

Looking forward to the experts answers here, so i can glean a rule of thumb on this subject.

[tazman]

Best case would be the cylinder throats all slugging at .358. That would give you the extra .001 you need for a good fit to your barrel.

Not certain if this problem effected the security six or not, but some Rugers had a restriction where the barrel went through the frame. This problem by itself could cause some leading.

[Outpost75]

Knowing the way Ruger made cylinders back in the day, it is not unusual to have chambers two each of three different sizes reamed three at a time and indexed once on the old WW2 era Claussen drills, until the 161- prefix series which were produced on comuterized Hitachi-Seki machining centers. Have DougGuy hone all to match your largest chamber throat or .3585-.3588

[Bookworm]

Doug did two cylinders for me, from a couple of my Six series revolvers. Both guns stopped leading, and on both the accuracy improved noticeably.

I would recommend having the throats reamed to all one size. That permits you to size the boolits to fit.

[Moonie]

Send the cylinder to Doug, he will get them all the same and that should take care of the issue, at that point you size just over throat diameter.

[243winxb]

Most appear to be .357 to .3575. Close enough to the groove diameter on most throats. Leave it alone, if shooting at 7 to 25 yards .

For 50 yards, get it adjusted.

I have 1 tight throat i dont use at 50 yards when shooting targets.