I just cleaned my 308 and when i pulled out the patche and jag there was a little copper ring on it. Can any one tell me what it is from. That would be great i am using hornady bullets 168gr with blc 2 powder 46grains. I cant figure out what it is from. Thanks guys
tiny copper rings
- Thread starter tygolf2002
- Start date
Re: tiny copper rings
full length size and trim on a rcbs pro trimmer with a three way cutter to chamfer and deburr at the same time. then tumble and then load.
full length size and trim on a rcbs pro trimmer with a three way cutter to chamfer and deburr at the same time. then tumble and then load.
Re: tiny copper rings
Could be jacket material shaved during seating, haven't ever seen a complete ring though, just half moons.
Could be jacket material shaved during seating, haven't ever seen a complete ring though, just half moons.
Re: tiny copper rings
It is the edge of a case that was not chamfered. I have seen them when seating bullets. I have always removed them before firing the cartridge. Suggest you inspect any finished rounds you have closely to see if there are others. You will either a distinct ring or a partial one.
good luck
Jerry
It is the edge of a case that was not chamfered. I have seen them when seating bullets. I have always removed them before firing the cartridge. Suggest you inspect any finished rounds you have closely to see if there are others. You will either a distinct ring or a partial one.
good luck
Jerry
Re: tiny copper rings
If it's little copper rings then It's the RCBS Trim Pro. When you seat bullets you get little straight slivers of copper, not rings. The Trim Pro cutter head creates those rings.
My guess, during trim some got inside the case and when you fired was pushed down the barrel. You found it with your cleaning rod.
If it's little copper rings then It's the RCBS Trim Pro. When you seat bullets you get little straight slivers of copper, not rings. The Trim Pro cutter head creates those rings.
My guess, during trim some got inside the case and when you fired was pushed down the barrel. You found it with your cleaning rod.
Re: tiny copper rings
If you get "slivers" when you seat that means you need to chamfer the case mouth. It is possible that mock's chamfer cutter on his 3 way cutter needs adjusted. If you had that problem you would see it when you seat, unless you don't inspect your round when you are done. It looks like little fingernail cuttings of copper from the base (or boat tail transition) of the bullet.
Descibe the ring. Is it a solid metallic ring or is it like ring around the collar on the patch? If it is a new barrel it could be copper from rough spots or a bad leade in the throat. If it's shavings from your load process, they can cause other problems and needs to be corrected before going to the range again.
If you get "slivers" when you seat that means you need to chamfer the case mouth. It is possible that mock's chamfer cutter on his 3 way cutter needs adjusted. If you had that problem you would see it when you seat, unless you don't inspect your round when you are done. It looks like little fingernail cuttings of copper from the base (or boat tail transition) of the bullet.
Descibe the ring. Is it a solid metallic ring or is it like ring around the collar on the patch? If it is a new barrel it could be copper from rough spots or a bad leade in the throat. If it's shavings from your load process, they can cause other problems and needs to be corrected before going to the range again.
