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D.B. Cooper
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I had some operator error issues during initial set up. Once I saw my simple mistake (it's alway something simple) it was off to the races.
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Impact of Trim Length
- Thread starter D.B. Cooper
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I had some operator error issues during initial set up. Once I saw my simple mistake (it's alway something simple) it was off to the races.
I have used the Sinclair case gauges and was really surprised how long the chamber necks were in 3 Rem 700s. 2 x .22-250 and a 7mm RM. As much as .030 over the listed max length. Don't have the numbers in front of me right now, but I remember I checked all of these guns multiple times thinking there was no way they could be that long. Got the same readings everytime.
Nature Boy
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I want safe and consistent.
As has been mentioned, too long and you can get erratic pressure.
Too short and you can get a build up of the dreaded carbon ring.
Either one is detrimental to precision and accuracy
As has been mentioned, too long and you can get erratic pressure.
Too short and you can get a build up of the dreaded carbon ring.
Either one is detrimental to precision and accuracy
Ugg, carbon ring is fricking awful.
Nature Boy
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Yes it is, particularly if you don’t stay on top of it. The problem is that a lot of folks don’t even know it’s there.
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D.B. Cooper
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Hey. I shot a revolver in competition every week for years. I KNOW carbon ring. LOL
A bore scope is a great tool and they are cheap. Money well spent. Ill let it ride awhile, but once it becomes noticeable I gently clean the throat and first 6" of the barrel with CLR and Iosso and verify its gone. Its the only way to be sure.
Jackiesman
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For any case, any caliber I reload - once the case has reached max loading length I trim to trim spec length, then make sure that the die is set to seat the bullet to the lands. Good consistent accuracy. Powder charge is adjusted to the best accuracy/fps (over the crony) for that particular bullet that is seated to the lands. Found that COL is much more important than case length for me, so I just trim to trim spec when the case reaches max length.
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