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Pahoo · December 13, 2012, 11:20 AM

I had a machinist in our shop, make me a 1" as well as a 30mm bar with a 1/4-20 T-bolt handle at center point. This is the same buddy that made a few cannons for me. He Pretty much stayed right at the finished od's. ....

Now, as far as ring diameters, you will find that they will vary and you do have plenty of room to play with, so I suspect that the .995 should still be good. I have not had to lap too many rings but I can tell that there is plenty of room. There have been cases where some folks have literally destroyed a good set of rings by lapping too much. ....

It's entirely your call but you don't have to have a 100% contact surface. ..

Be Safe !!!

December 13, 2012, 11:20 AM	#3
Pahoo Senior Member Join Date: February 16, 2006 Location: IOWA Posts: 8,783	You should be okay I had a machinist in our shop, make me a 1" as well as a 30mm bar with a 1/4-20 T-bolt handle at center point. This is the same buddy that made a few cannons for me. He Pretty much stayed right at the finished od's. .... Now, as far as ring diameters, you will find that they will vary and you do have plenty of room to play with, so I suspect that the .995 should still be good. I have not had to lap too many rings but I can tell that there is plenty of room. There have been cases where some folks have literally destroyed a good set of rings by lapping too much. .... It's entirely your call but you don't have to have a 100% contact surface. .. Be Safe !!! __________________ 'Fundamental truths' are easy to recognize because they are verified daily through simple observation and thus, require no testing.