Weight Sorting Brass

[Powerstroke]

I'm finally getting around to putting something together for the new .270wsm.
I've never weight sorted any brass what so ever, so the question is... how much variance is acceptable when trying to find a batch to put together? I've purchased a bag of Winchester brass and am seeing from 225.7 to 229.3 grains. is plus or minus .4 tenths ok? I'm seeing a fairly consistent range of 227.0 +/- that .4. or do I need to get tighter than that?

Thanks guys

 

[Antelope_Sniper]

On cases this size, I've always considered .5 grain variance very good, 1/2% good, and 1% acceptable. Out of 100 rounds, I expect to get 1 box of the first type, 2 of the secnd type, and 1 of the third type, and about 10 cases that are total junk based on their weight. YMMV.

 

[longwinters]

I am no competitive shooter, but I do expect my rifles/loads to shoot under MOA. I have never weighed my brass and the more I read from shooters/hunters/reloaders I respect ie John Barsness and others, who have done accuracy tests changing about everything you could change and measuring accuracy changes: I am not so sure lots of the things we think we have to do to get good accuracy is all that necessary. If I was going to concentrate on something it would be concentricity...getting the bullet started off straight down the barrel.

I don't doubt you already know all of this and are just trying to get the last drop of potential accuracy out of your loads. Have fun and knock yourself out

Long

 

[DrMike]

I've loaded for some years, and while I respect the knowledge generated from the benchrest crowd, for hunting, it is difficult for me to justify the extra effort required to weight sort brass. I do have friends that carefully weigh each piece of brass, but they haven't convinced me of the need ... yet. All my rifles (everyone stock) shoots sub-MOA, many of them .25 inch of less. It sounds as if you have some good brass to work with.