tpelle
Member
In a thread that discussed chambered balls creeping under recoil http://www.thehighroad.org/showpost.php?p=7208474&postcount=23 makos goods posted a link to a company that sells reamers:
http://www.atlascuttingtools.com/categories/Reamers/
I understand (haven't measured mine yet) that chambers on Italian replica revolvers are commonly undersized with respect to the barrel bores. If so, the balls are swaged down to a dimension that is too small for best accuracy because they then pass into a larger diameter bore. This condition is remedied by swaging the cylinders to a dimension equal to or slightly larger than the barrel bore.
I am interested in looking into doing this, and have some questions for the experts here:
1. Can the cylinder bores and barrel bore be measured with a dial caliper as used for reloading?
2. When measuring the barrel, do you measure across the lands or the grooves?
3. To make this measurement, do you force a ball into, say, the barrel, force it all the way through (drive it with a brass rod or something), then measure the O.D. with calipers? I presume that you'd have to do something similar with the cylinder bores, but you'd have to drive the ball out of each chamber with a rod that would fit through the hole where the nipples are threaded in.
4. Is there a better way to make this measurement that someone can describe?
5. Atlas Cutting Tools sells numerous different types of reamers. What type is best for this application? Do you have to "go up in steps", or can you make the size jump in one operation?
6. Can these reamers be turned by hand, with, say, a tap handle, or do you have to use a power tool of some sort? If so, will a drill press do it?
Any other tips on this precess would be helpful?
Thanks in advance.
http://www.atlascuttingtools.com/categories/Reamers/
I understand (haven't measured mine yet) that chambers on Italian replica revolvers are commonly undersized with respect to the barrel bores. If so, the balls are swaged down to a dimension that is too small for best accuracy because they then pass into a larger diameter bore. This condition is remedied by swaging the cylinders to a dimension equal to or slightly larger than the barrel bore.
I am interested in looking into doing this, and have some questions for the experts here:
1. Can the cylinder bores and barrel bore be measured with a dial caliper as used for reloading?
2. When measuring the barrel, do you measure across the lands or the grooves?
3. To make this measurement, do you force a ball into, say, the barrel, force it all the way through (drive it with a brass rod or something), then measure the O.D. with calipers? I presume that you'd have to do something similar with the cylinder bores, but you'd have to drive the ball out of each chamber with a rod that would fit through the hole where the nipples are threaded in.
4. Is there a better way to make this measurement that someone can describe?
5. Atlas Cutting Tools sells numerous different types of reamers. What type is best for this application? Do you have to "go up in steps", or can you make the size jump in one operation?
6. Can these reamers be turned by hand, with, say, a tap handle, or do you have to use a power tool of some sort? If so, will a drill press do it?
Any other tips on this precess would be helpful?
Thanks in advance.