I just bought a sinclair max chamber length gauge. I trimmed my case way back, inserted the soft steel gauge in the case and got a maximum length measurement. My question is how far back should I trim it. It just so happens in this particular rifle it tends to like near maximum charges for accuracy. What is a good Trim to length in this case? I was thinking -.003. Any thoughts? Thank you for the help
Trim to length question
- Thread starter WayneHS
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Re: Trim to length question
Three thou is enough, I would round up to 5, I just don't seat with the camp that says a few thou exra neck means squat.
I would just keep it consistent and rock with it, I can tell you it is rare if you really look at them closely, to keep your shoulder within 1 thou of each other, so if your trimmer indexes off of the shoulder, it will induce that much difference--one thing I DON'T like about my Giraud.....
Go 5 thou short, and check em after firing and sizing them next time to see how much they grow...
Three thou is enough, I would round up to 5, I just don't seat with the camp that says a few thou exra neck means squat.
I would just keep it consistent and rock with it, I can tell you it is rare if you really look at them closely, to keep your shoulder within 1 thou of each other, so if your trimmer indexes off of the shoulder, it will induce that much difference--one thing I DON'T like about my Giraud.....
Go 5 thou short, and check em after firing and sizing them next time to see how much they grow...
Re: Trim to length question
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: fish301</div><div class="ubbcode-body">one thing I DON'T like about my Giraud.....
</div></div>
And Your The One Person On The Planet Who Can Shoot The Difference!
My suggestion is to pick a number of no more than .024 and go with it, I do .010 on 308 and 260
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: fish301</div><div class="ubbcode-body">one thing I DON'T like about my Giraud.....
</div></div>
And Your The One Person On The Planet Who Can Shoot The Difference!
My suggestion is to pick a number of no more than .024 and go with it, I do .010 on 308 and 260
Re: Trim to length question
For my match rifles I trim to max -.005" Anything else like hunting rifles are max -.010"
For -.005" and less, temperature and chamber dirt, (fouling) can cause hard chambering. Just something to be aware of.
For my match rifles I trim to max -.005" Anything else like hunting rifles are max -.010"
For -.005" and less, temperature and chamber dirt, (fouling) can cause hard chambering. Just something to be aware of.
Re: Trim to length question
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 427Cobra</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: fish301</div><div class="ubbcode-body">one thing I DON'T like about my Giraud.....
</div></div>
And Your The One Person On The Planet Who Can Shoot The Difference!
My suggestion is to pick a number of no more than .024 and go with it, I do .010 on 308 and 260 </div></div>
Hell no I'm not! I can barely measure it!
Which is another reason I don't sweat things being near max tolerance, it just ain't worth it to me, I always check results on the target face!
Good point by Victor, you get things too close, and something throws a thou or two into the mix that you didn't factor in, and No-Go.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 427Cobra</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: fish301</div><div class="ubbcode-body">one thing I DON'T like about my Giraud.....
</div></div>
And Your The One Person On The Planet Who Can Shoot The Difference!
My suggestion is to pick a number of no more than .024 and go with it, I do .010 on 308 and 260 </div></div>
Hell no I'm not! I can barely measure it!
Which is another reason I don't sweat things being near max tolerance, it just ain't worth it to me, I always check results on the target face!
Good point by Victor, you get things too close, and something throws a thou or two into the mix that you didn't factor in, and No-Go.
