trimming cases

[Hannu]

ive always heard to resize before you trim and debur because the resizeing can mess with the length. don't know if thats right or wrong, but really i wouldn't think it would matter much either way. i think ill just it by hand to be safe the first time if its that easy. thanks for the info

Yes, that is correct trim only resized cases, as they will often get little more lenght when resizing.
Other thing is, trimmer pilot will fit case mouth better = better straightness in case mouth = better accuracy.

[earplug]

I don't shot 223 anymore, but having the same case length will help accuracy as to neck tension and bullet pull/tension.
I use a thirty year old foster trimmer. If you have a drill press i would buy a case trimmer that worked off a drill press.

[tmckay2]

ok i checked them and most are within limits as they are. do you guys usually go for 1.750-1.760?

[Tora]

If you fired the brass through your weapon already, then I wouldn't worry about it for plunking.

[tmckay2]

you guys think a normal file would work just as well? the case trimmer is working of but im noticing it chews up the case lip a little even after chamfering it. it also sometimes is all that even

[Hannu]

File is fine, if you trim just to be safe. For precision handloads, you need something completely different

[tmckay2]

which is?