Thread: full size vs neck size

Originally Posted by Dino

Cheers for that

I do hunt with a 4x2, my GWP has wood for brains...lol

Are you saying that neck sized only brass has the opportunity to cause sticky bolt lift more than full sized brass?

Haha your safe then mate will always have a hammer

It will but I bump before it gets to that, every 4-5, I do it when I anneal bump them back 2thou an away we go again.

Originally Posted by Toby

Wouldn't a full sized case stretch more?

Yes, but not over stretch, will only blow out to match chamber again

Sorry if I'm pissing you off but, whats over stretch? where else can it go?

I used to full size all my .223 and .270 cases, but switched to neck sizing years ago.
Have had 6 or 7 reloads from the same cases neck sizing in .270 without problems before I changed brass.
Had been through 1000's of .223 cases of several types and never had problems before I re-chambered the rifle to .223AI.
Nothing wrong with neck sizing!

Originally Posted by tui_man2

Haha your safe then mate will always have a hammer

It will but I bump before it gets to that, every 4-5, I do it when I anneal bump them back 2thou an away we go again.

Cheers for the reply

My method currently is neck size, check it fits, if not then I will Full length Resize. I have RCBS dies(just 2 die set) and not sure if I can adjust the bump, will have to do some more reading.

The hammer may be thick but she sure has a good nose, her Owner just needs to be a bit quicker and we will get our first deer together!

Cheers

Dino

i load for 3 of my rifles and only neck size and havent had any problems at all but also as someone mentioned when loading the same caliber but for different rifles the ammo may not be interchangeable a good example is i load 22 hornet neck sizing improved the accuracy quite a bit but i have 2 hornet rifles and the reloaded ammo isnt interchangeable between them as the case has fire formed to suit each chamber which have different tolerances make sure you clearly label your ammo if you do this

Originally Posted by veitnamcam

I have found with the dies i am using i get less neck tension using a neck die.

I pretty much full length everything except the 303.

Yes on Lee dies Ive noticed that. Latest Ive seen is 1thou neck tension as any more is pointless as you use the bullet to expand the neck back up anyway instead of the die.

I do 3/4 of the neck on a 303, some ppl do 1/4 to 1/3rd.

Originally Posted by Happy

Does nt that make the brass life a bit shorter or not ? Asking as I don't know .

On some brass such as 303british yes. Ive not fired my brass that much yet but more experienced ppl tell me 15+ when neck sizing v < 10 full sizing on 303.

Newer guns with tight chambers maybe not such a difference. 308w lapua in a palma target gun can last years neck sized, but I dont know anyone who full sizes for palma to compare.

Originally Posted by Toby

Sorry if I'm pissing you off but, whats over stretch? where else can it go?

The brass can only go one way, get longer...

Hi Guys

So after shooting a couple of rounds at the weekend I was getting the same group size and point of impact with neck size and full size, no surprise but was worth testing.

Turns out that this load has decided it is a bit hot, for the first time with this load was getting ejector marks so back to the drawing board anyway...buggar. Was a nice warm day may have made the difference, rifle had tons of time between groups, tons of people at the range!

Managed to get my best group ever shooting the 243, so pleased with that, all that and an all blacks win, Happy As!

Cheers

dino

load?

308 was 49.5 grains 2208 pushing 130 tsx barnes seated 50thou off lans, i have fired about 15 rounds of this load with no problems but on saturday all 3 rounds of the group had slight ejector marks. max load according to barnes data is 52 grains.

All good will drop it back a grain and see how it goes.

I have been trying to get my head around using a micrometer and measuring case expansion, probably a bit more accurate than having a look at the primer!


cheers

Dino

What brass?

Hi VC

was federal brass, reloaded from factory blue box.

Cheers

Dino

Its very soft in the head(like me !)
I wouldn't be too concerned with slight marks as they do that factory loaded. Providing your not getting sticky bolt lift or anything scary like primers falling out.
What velocity are you getting?