Home Forums Reloading Big Game Rifles Brass too short?

I was sorting some 7wsm brass last night and found 17 pieces that were 0.004" shorter than the rest. Should I trash these? Will 0.004" make a noticable difference in accuracy? Thanks for the help.

Are they within or close to the trim-to length? If you'll be trimming the others to the trim-to length, and the 17 are within the trim-to length, then they'll be the same. Winchester is the only manufacturer of 7 WSM now, so I'd be judicious about what I threw away.

It's .002 shorter than trim to length. Seems like trim lenght is 2.090. Most of my brass is 2.092 after 3 firings. A 0.004 difference seemed like it might be significant, so I set those pieces aside. I thought I might keep them separate and continue to load them. I guess I could run a test myself to see if a 0.004 difference matters.

It wont matter as long as COAL is the same...

Ingwe

"Will 0.004" make a noticable difference in accuracy?"

NO.

Thanks guys. I'm trying to get better with my technique and I'm just starting to notice some of the little things that in the past I overlooked. Thanks again.

It's good that you're vigilant in that respect. That's what makes a good handloader.....good.

But has been said, you will be GTG with those four shorter cases. Not unsafe nor will you likely notice any difference in accuracy.

I am pretty anal about such stuff as well, so trust me on this one......

I one is concerned about any cartrige, one might put it aside and use as a fouling round.

If you want to be real picky, trim them all to the shortest length. There's nothing magic or writ-in-stone about the "trim to" length; it's the max length that you want to watch.