Case weights .308

[millwright]

Hello All.Was trying to duplicate my 788 load with civilian brass.I use ivi military cases from 1971, 43 grains of IMR 4064 and a 165 gr spire point.This load is most excellent for me and my rifle. So I tried some Federal cases and my load went for a poop. I decided to weight some cases and this is what I found your mileage may vary. IVI cases averaged approx 184 to 188 grains.Federal was 174 grains to 176 and was the most consistent.WW weighed in at 152 to 158 grains.Remington cases were 161 grains to 165 and good old Imperial came in at 184 to 191 grains.
So I guess I will be sticking with canadian brass to keep my shots on the paper or deer.

Anyone else weigh their .308 brass?

 

[downwindtracker2]

Try Lapua,I think they were close.

 

[sunray]

If you change any one component you have to work up the load again.

 

[maynard]

I shoot Lapua brass and weigh and batch it into 1 gr batches. It runs in the 171gr-173 gr range with the odd one running as high as 175(culled).
IVI brass has thicker walls which means less case capacity.

 

[Boomer]

If you are able to work up your loads using a chronograph, establish what your velocity is with the IVI cases, then using the same powder, primer and bullets, work up a load using the Federal brass which gives you the velocity that was magic from your IVI cases.

There are many things a handloader can do to a brass case to improve his accuracy, but these normally result in improvements of fractions of a minute - not a difference of being on or off a target or a game animal at 100 yards. A .308 rifle which consistently fires 3" groups at 100 yards is accurate enough to put a bullet in a deer's vitals at 300 yards - if the hunter can shoot up to his rifle. If he cannot, it does not matter how accurate the rifle is.