Bullet grip/neck tension question

[graywolf]

Yes, I cleaned them up. Maybe took off a thou. They're .013 thick

What kind of brass? Trimming that much and using a .332 bushing it's a surprise that your bullets don't fall out.

 

[odoylerules]

What kind of brass? Trimming that much and using a .332 bushing it's a surprise that your bullets don't fall out.

Nosler brass. I only cleaned up the necks. Doubt I took off more than a thou

 

[7stw]

I agree with the others mentioned, if you were to leave it like it is, in a hunting sitiation, the recoil, from the first round, will dis lodge the second one, and at least change the seating depth.
Sounds like your in for a re tune!
Not the end of the world.

 

[MagnumManiac]

Coming in a little late here, but if you DON'T see any bullet setback with rounds in the magazine after a bullet is fired... where's the problem?

I run .0015" tension on my 300WM, never seen a bullet setback through recoil EVER. I, too, use graphite on my necks prior to bullet seating.
However, I cannot push a bullet in by hand in my rounds.

If you are getting great groups and don't want to change tension, try single loading, if it's a push feed rifle. If not, then I would load just shy of the front of the mag box and see if bullets move or not after recoil.

Cheers.

 

[7stw]

My only thought is, as the OP stated, he can , or has been able to push bullets into case, with hand pressure, which made me think, that recoil could upset oal, seating depth.
Maybe not so much if a compressed load is in the equation. His question is a valid one, as I would be concerned as well.
Cheers.

 

[graywolf]

Nosler brass. I only cleaned up the necks. Doubt I took off more than a thou

Yes but if you're using a neck sizing die you have nominally zero tension holding a .30 caliber bullet with .013 thick neck walls and using a .332 bushing (except from the graphite coating maybe).

 

[Schnyd112]

.308+ .26 = .334

With a .332 bushing you are getting .02 stretch from your unloaded to loaded rounds. That should be plenty to hold the bullet in the case.

Does the bullet move if you drop them? Put one in your pocket and carry it around all day. Does it move? Or does the bullet need to be pressed exactly right to get it to move?

Try it again with them in the magazine. They may not move unless you get it just right. I would experiment if the load is shooting well.

 

[odoylerules]

.308+ .26 = .334

With a .332 bushing you are getting .02 stretch from your unloaded to loaded rounds. That should be plenty to hold the bullet in the case.

Does the bullet move if you drop them? Put one in your pocket and carry it around all day. Does it move? Or does the bullet need to be pressed exactly right to get it to move?

Try it again with them in the magazine. They may not move unless you get it just right. I would experiment if the load is shooting well.

No I had to push pretty hard to get it to slide in. I pinched the bullet between thumb and pointer finger and the brass in the other hand and pushed pretty hard and it slid significantly deeper into the case.

 

[Schnyd112]

No I had to push pretty hard to get it to slide in. I pinched the bullet between thumb and pointer finger and the brass in the other hand and pushed pretty hard and it slid significantly deeper into the case.

Yeah if it is a load you like I would dig a little deeper into what it takes to move the bullet. If it does move, see if they move to a consistent amlunt every time. I would also shoot it after the bullet is pressed in and see what happens.

 

[7stw]

I'm with Greywolf, I think maybe too much has been taken off necks, and with bushing being used, it has decreased neck tension past a good level.
I've been down this road before before, its a slippery slope, pardon the pun.
My thought is you either need a tighter bushing, or new brass.
I'm sure it's frustrating. I threw away sixty pieces of STW, brass, which at that time was hard to replace, or find.