rifle bullet set back

[canuck4570]

to have a consistent seating pressure and using graphite to do this is there a danger of bullet set back with a .0002 seating pressure. this is with rifle round. 30-06

 

[nowarningshot]

Lots of variables.....annealed or not, crimped or not, seating on a cannulure.

Even the rifle makes a difference, bolt, semi, single shot. If it's a magazine fed rifle, shoot a couple and measure coal from cartridges in the magazine to see if length has changed.

 

[Janeau]

No. Lubing the inside of case neck-will have no effect on bullet set back. Will ease bullet seating.
If you use a bushing of .002 under loaded round neck diameter - on brass not annealed, a minus .003 bushing will be a better option, because of neck brass spring back.

 

[Ganderite]

I found .03 to be a better bushing.

Is this hunting ammo? If so, it has to be fool proof.

 

[Janeau]

You mean .003…, .030 will be way to much.. bullet wont’t go and crush case…

 

[Canuck65]

I seat with 2thou for Benchrest, but I’d never load hunting ammo that way without a crimp.

 

[canuck4570]

thank you all

 

[Dogleg]

I like to test a few at the beginning; putting the case head on the heel of my palm, bullet tip against the edge of the bench and giving a hard push. It’ll either hold or it won’t; if it doesn’t then a crimp generally won’t help much.

 

[canuck4570]

good idea
I will also try to shoot and with a full magazine and measure them before and after to see if there is setback

 

[bearhunter]

I prefer an extra bit of neck tension between the bullet and the neck wall to a crimp.

Much more overall consistency down range and I've yet to have a bullet lose its seating if I do my part and properly anneal the case.

I've seen bullets set back in the necks from not enough neck tension and it usually happens with work hardened cases.

Bench rest shooters apply as little neck tension as possible, so they don't impose any sort of damage to the base of the bullet when seating.

They purposely seat the bullet long so that it will engage the leade and push the bullet back into the neck a couple of thou. Tolerances on BR and other match rifles are much tighter than most hunting rifles so the slightly increased pressure isn't an issue.

 

[jethunter]

to have a consistent seating pressure and using graphite to do this is there a danger of bullet set back with a .0002 seating pressure. this is with rifle round. 30-06

You probably meant .002", not .0002".

.002" grip should be fine with 3006 bullets. Just make sure you aren't seating on the ogive.