Bullets separating from cases in the action

Lazyace

Member
Joined
Sep 18, 2020
Messages
15
Location
cody
I had two bullets separate from the cases IN the action as I was unloading while hunting and dumped powder in the chamber and action. Using new Lapua brass for my 6.5x284 with Hornady match dies, Berger 140 gr. Elite Hunter. COAL at 2.920 is WAY off the lands at 0.095 so I can't understand why it would get stuck in the chamber. My loaded case width is 0.292 and I'm using the 0.289 bushing. My fired case width is 0.295 but this is new brass. Should I get a 0.288 or 0.287 bushing? Temperature was around 10 degrees. Is it possible that the cold Temps could shrink bullet and cause it to separate from the case? I've never had this problem before in any caliber and I'm stumped as to what is causing it.
 

Seabeeken

Well-Known Member
Joined
Apr 30, 2013
Messages
76
Location
Communist state of maryland
Sounds as though you have plenty of neck tension. The bullet must be hanging in the lands or possibly a dirty throat. Abullet may be clear on a clean throat but some carbon could hang it up. Had this very problem once and needed to back the bullet up a few thou. Problem cured. Keep us posted on your findings
 

entoptics

Well-Known Member
Joined
Jan 16, 2018
Messages
551
I can't think of any mechanism to pull the bullet from the case when unloaded, except that the bullet is stuck into the lands, a burr, or a carbon ring in the throat. Are there any marks on the bullets that might indicate what's grabbing it?

Shrinkage is highly unlikely regarding neck tension. Ran a quick calc on engineering tool box, and 100° change in temp might shrink a 30 cal bullet by 0.0005", but the brass would also shrink by about 2/3 of that, which means the difference would only be about 0.0002 give or take. Not enough to affect neck tension regardless.
 

climb-101

Well-Known Member
Joined
Mar 3, 2011
Messages
195
maybe the expander ball in the die is wrong and opening up the cases too much?
 

climb-101

Well-Known Member
Joined
Mar 3, 2011
Messages
195
Don't think he's using an expander since he said he's using a bushing die
very possible but i have seen a lot of guys use the expander if they don’t next turn. if far from being an expert at any of this though.

it would be easy to pull the die apart and measure the expander and compare it to bullets. I also think the bullet is sticking in the barrel and getting pulled out.
 

cohunt

Well-Known Member
Joined
Jan 21, 2016
Messages
2,529
Location
Colorado Springs, CO
very possible but i have seen a lot of guys use the expander if they don’t next turn. if far from being an expert at any of this though.

it would be easy to pull the die apart and measure the expander and compare it to bullets. I also think the bullet is sticking in the barrel and getting pulled out.
If you use an expander all with a bushing you are defeating the point, doesn't mean people don't do it though
 

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