Revolver throat diameters

[mdi]

There are a few ways to accurately measure cylinder throats. I have used Plug/pin gauges (individual gauges are available, not overly costly). I have "slugged" the cylinder and measured with mics, and even done a chamber cast. I have checked/measured all throats on all my revolvers, except 22 lr. and I start load workups with bullets the same diameter as the throat. Some guns may work better with slightly larger bullets, but it works well in 99% of my revolvers. I have reamed the cylinders on one of my 44 Magnums, and done by hand it is easy and quick...

As long as the jacketed bullet is not swaged down by the tight throat there should be no problems with accuracy, function, etc...

 

[barnfrog]

As long as the jacketed bullet is not swaged down by the tight throat there should be no problems with accuracy, function, etc...

I think this is probably the case. When I drop a bullet nose-first into the throat end of the chamber, it sticks but I hardly have to touch it to get it to drop through. It like there's a tiny burr at the edge of the throat or something.