I picked up some this past week 100 rd count box for $70.and after weighing each piece of brass i had about 55 pieces that where within 1 grain and if i stayed within a 1.5 grains i had 16 pieces that was off some by over 3 grains.then when i checked the length of the cases the longest piece was 2.007 and some as short as 2.003 most of my manuals say 2.015 and 1 that says 2.010 i was just curious to what everyone else thought on the matter.and the brass is for 308
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I think that you will do well in formal benchrest competition with such attention to detail..... As far as lengths go 2.015" is Max length. "Trim to length" is usually expressed as 0.010" less or 2.005" for the 308 Win. As far as brass weights a tolerance variance of 1% or less (or about 1.7 grains in a Lapua 308 case) is considered very good.
do some more reading here and other reloading info
you are trying to infer weight to case capacity - this has been well proven not to correlate in 2-3 gr variation case weight
if you really want consistency, sort by water volume testing
this and length trimming is logically done after 1 shooting and full resize
you are trying to infer weight to case capacity - this has been well proven not to correlate in 2-3 gr variation case weight
if you really want consistency, sort by water volume testing
this and length trimming is logically done after 1 shooting and full resize
My experience is that as mentioned there is no value in case weight, only volume. OAL is only important if: the neck outgrows the chamber length or as it relates to oversizing which is relevant to the shoulder/headspace on a .308. Now I am quite aware that some anal hand loaders attempt to remove any/all variance in their process and are certain it makes a difference. I purchase Lapua brass it remains consistent and durable over many firings...........once again YMMV.
The link below covers cases and quality, Lupua Team USA members say they just load and shoot Lupua brass without any special prep before shooting.
.308 Win Cartridge Guide within AccurateShooter.com
.308 Win Cartridge Guide within AccurateShooter.com
Lapua is about as good as it gets. There are also a few others that will compare. In my opinion, you are wasting your time measuring anything until you have trimmed it and maybe prepped the primer pockets. Make it uniform, then measure it. The others are right, consistent weight does not always relate to consistent volume. Water is also not a good way to measure volume, as it has too much surface tension. If you are really serious about this, use something like alcohol. Or do like the rest of us, prep it, load it, and shoot it. I'm not trying to be offensive, just relating my experience. Lightman
It is GTG. Unless other guys are getting more than 28 reloads out of a piece of brass in a 47L,
I'd say Lapua is the "go to" brass. I wouldnt trade mine for anything
I just bought my first batch also & I'm itching to see if it's as good as claimed. I'm sure it is or at least hope so.
I've had good luck w/Win, FC, & R-P in semi-autos which until now is all I've loaded for.
Good luck, hope you get the results you're wanting.
I've had good luck w/Win, FC, & R-P in semi-autos which until now is all I've loaded for.
Good luck, hope you get the results you're wanting.
I've never weight sorted my Lapua brass. Just trim length and shoot, trying to group the same lots.
I think the brass is good enough that Lapua brass availability has serious weighting when I decide to get into a new caliber.
