I have a 3 die redding set on the way. Is making 7-08 just as easy as lubing the neck and running it through the neck sizer and trimming? I have a BUNCH of LC that I'd like to use.
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Forming 7-08 from 308
- Thread starter Goin'Hot
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Re: Forming 7-08 from 308
I run 308 through a Redding FL sizing die, done.
Trimming isn't necessary as the brass formed from 308 has been in my experience shorter than 7-08 max case length by .020"+.
I run 308 through a Redding FL sizing die, done.
Trimming isn't necessary as the brass formed from 308 has been in my experience shorter than 7-08 max case length by .020"+.
Re: Forming 7-08 from 308
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: sobrbiker883</div><div class="ubbcode-body">I run 308 through a Redding FL sizing die, done.
Trimming isn't necessary as the brass formed from 308 has been in my experience shorter than 7-08 max case length by .020"+. </div></div>
Does the .020 legnth pose any problem? I thought the general rule was .010 under max?
Just curious...
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: sobrbiker883</div><div class="ubbcode-body">I run 308 through a Redding FL sizing die, done.
Trimming isn't necessary as the brass formed from 308 has been in my experience shorter than 7-08 max case length by .020"+. </div></div>
Does the .020 legnth pose any problem? I thought the general rule was .010 under max?
Just curious...
Re: Forming 7-08 from 308
The .308 brass will thicken when necked down. Be sure to check fired diameter in your rifle v/s loaded round diameter...depending on your brass you may have to neck turn...try different brass makes, Winchester and Black Hills being, in my experience, thinner to begin. JMHO
The .308 brass will thicken when necked down. Be sure to check fired diameter in your rifle v/s loaded round diameter...depending on your brass you may have to neck turn...try different brass makes, Winchester and Black Hills being, in my experience, thinner to begin. JMHO
Re: Forming 7-08 from 308
Good point FNP, I just sized a bunch of FGMM 308 once fired brass for my 7-08 and when loaded its right at or just under the SAAMI spec of .315". Looks like I'll should invest in a case guage. The Fed chambers fine in my rifle, and I'm hoping may be more consistent if its closer to filling the chamber neck.
For what its worth, R-P 308 match brass is thinner in the necks the FGMM, my 7-08 loaded from R-P 308 is running around .313", and R-P 7-08 factory brass is at .310".
lockedandloaded-the .020" shorter is 308 brass that I had already trimmed .015" under 308 spec, then necked down. The 1X fired FGMM I just necked down for a new batch without any trimming is running right around 2.030" (.005" shorter than max trim length). I never had any problems with the shorter batch, but the necks probably weren't sealing optimally well, as there'd be carbon on them after firing.
Good point FNP, I just sized a bunch of FGMM 308 once fired brass for my 7-08 and when loaded its right at or just under the SAAMI spec of .315". Looks like I'll should invest in a case guage. The Fed chambers fine in my rifle, and I'm hoping may be more consistent if its closer to filling the chamber neck.
For what its worth, R-P 308 match brass is thinner in the necks the FGMM, my 7-08 loaded from R-P 308 is running around .313", and R-P 7-08 factory brass is at .310".
lockedandloaded-the .020" shorter is 308 brass that I had already trimmed .015" under 308 spec, then necked down. The 1X fired FGMM I just necked down for a new batch without any trimming is running right around 2.030" (.005" shorter than max trim length). I never had any problems with the shorter batch, but the necks probably weren't sealing optimally well, as there'd be carbon on them after firing.
