I recently came into 1,000 cases in LC .308. After resizing them the case length is 2.026 or close to it. I am looking to reload all cases for a PTR-91 Semi, but don't want to trim all the cases, is it safe to do so???? When I reload for my .308 Bolt (Remington LTR), I always trim to 2.005. The thought of trimming 1,000 rounds does not sound fun.
Safe or not to reload ??
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April 2, 2012, 08:26 PM
I feel for ya, sublimaze41, as I personally hate trimming also, but a responsible and safe reloader would trim them.
April 2, 2012, 11:07 PM
Are you going to add a crimp? If yes, you would want them all the same size. If no crimp, then you could get by with only trimming the ones longer than 2.015.
April 2, 2012, 11:15 PM
I just went through this with the exact caliber and cases about 2 months ago. I did 1800 of them. Used a Lee trimmer and a drill press got done sizing and trimming in 3 1/2 hours. Hope I don't have to do it again anytime soon.:p
I made my RCBS hand trimmer into a power trimmer. Remove the crank handle and replace the regular screw with a hex head cap screw (mine was metric, they have them at Lowe's).
Now, just get an adapter to use a socket in a power drill.
I had to shorten 200 .30-30 cases 2/10ths to make .357 Herrett brass. Cranking by hand took maybe ten minutes or more per case. With the power it was maybe 20 seconds each, and I was taking off a LOT of brass.
April 4, 2012, 07:26 AM
Wow. That is a lot of trimming .200".
April 4, 2012, 11:33 AM
What is the case HS and your semi HS? If the necks aren't too long for the chamber, load and shoot, THEN check chamber HS and set sizing die appropriately. Why remove good brass when you may not need to? I have 3-4 reloads on my S-A 308 brass and haven't trimmed ANY.
April 4, 2012, 11:56 AM
Trimming lots of cases is why I bought a Giraud trimmer. http://www.giraudtool.com/prod02.htm I have trimmed 5 gallon buckets worth of brass with the thing.
I had a Redding hand trimmer, I remember taking all of the baseball world series to trim 700 cases. Not anymore.
Yes, trim your cases. Cases longer than 2.015 will pinch the bullet in the throat and you will have pressure problems.
I trim my 308 cases to 2.000" because it is an easy number to remember.
April 4, 2012, 12:04 PM
"Safe or not to reload ?? "
That doesn't depend on our guesses, it depends on your chamber length and we sure don't know what that is; do you? If not, trim them to a length that will be safe.
April 4, 2012, 04:44 PM
If the brass exceeds SAMMI max. case length, you have to trim. Over max. case length can result in mouths getting pinched in the throat during firing, which drives pressures up unpredictably high. Bottom line is, if you reload bottle neck cartridges you must maintain trim too length to within SAAMI spec.!
April 4, 2012, 05:04 PM
If they are longer then 2.015" SAAMI Max length, they need to be trimmed for the above reason.
If you want to crimp they need to all be the same length anyway.
Unless you use a Lee FCD to crimp them, as it is not length dependent.
April 4, 2012, 05:28 PM
Possum Hollow sells an adapter so you can chuck it in your electric drill. Whole setup is ~$35. No lathe required. Works fast and well.