Precision Reloading trimming to length

J

JNA

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Hello everyone,

I was wondering if it was recommended to trim to length after each firing of brass.

I have some 308 and 6.5 creedmoor brass that I fired through a couple of bolt guns (308 included one semi) and was wondering if it would be recommended to trim to trim length in order to maximize accuracy.

Let me know your thoughts.

Currently have a host of brass, IVI, federal, Norma, hornady.
 
in theory the more identical each round is the more accurate they can be. In practice I wish I was good enough to tell if one brass was .005 shorter than the next! One definate thing to watch is your max brass length, binding in the chamber due to brass being too long can cause pressure issues quickly!
 
Sammi has min and max numbers for brass length, good to follow for safety as stated by tigger. too long is a big no-no. concistency is key for accuracy.
 
Sorry should have clarified. All my brass is within the min to max, but was wondering if it is worth trimming all of them to min length as a start point
 
I shoot a lot but mostly a PRS style shooting and do not find much of a variance is brass that is slightly different in lengths. I typically always try to keep all the same but there are times it is mixed.
If shooting groups and you are looking for maximum accuracy then you want everything to be the same.
If you are shooting a factory rifle then it likely will not be noticeable.
Best way to tell though is to load some all equally trimmed and some not and see what happens with your rifle
Have fun
 
sinclair sells a plug that you use in a case that you trim way short, the plug tells you the max case length for YOUR chamber, I use this plug and cut my brass 5 thou shorter then what I get with the plug, when neck sizing only, the cases never grow long enough that they need to be trimmed
 
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