Thread: 303 Query

Originally Posted by John Duxbury

What? We are not doing this for accuracy, we are doing it so the .303 brass lasts longer. Look, this isn't a theory being postulated, people have been necksizing .303 ammo for this reason for a long time...

(I am curious as to how much difference in accuracy you have observed in your .303 loads between neck sized and full length sized ammo?)

None i doubt a 303 is accurate enough to notice
I don’t neck size for any caliber I did try it years ago and it caused issues that I don’t like such as one or 2 rounds not chambering losing me animals or matches besides, I like my ammo to be the same every time but with neck sizing every 2-5 loads depending on the case you have to full-length size
That changes the internal dimension of the brass from what it is when you neck size
Which means you may as well have changed everything
Full-length size makes it the same every time not 4 out of 5 times

I noticed zero accuracy loss when I switched back to FLS from NS for me it just wasn't worth the risk brass is cheap in comparison to all the other costs involved and I'm not prepared to try and stretch brass life a couple of shots at the risk of reduced reliability, especially in a hunting rifle

Keep your brass soft with annealing full-length or shoulder bump
Trim the brass if it requires trimming
You’ll wear out the primer pockets before anything else trimming takes seconds if you have a good well set up trimmer

each to their own I guess