243winxb
Member
Think i saw something about, if bullets are seated to deep they loose all neck tension???
.308 Bullet seating issues - Please help!
- Thread starter spartan00054
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I call bingo. 243winxb that is what I was talking about if they are seated to where they will crimp there is no press left.
I don't have time to type all the bad advice in this thread. I will point out the post about making necks so small they shave the bullets. Not only is the brass going to be resized but your shaving the bullet. How could that add press? It may make a shoulder that will stop set back. Is this common practice for benchrest shooters?
I don't have time to type all the bad advice in this thread. I will point out the post about making necks so small they shave the bullets. Not only is the brass going to be resized but your shaving the bullet. How could that add press? It may make a shoulder that will stop set back. Is this common practice for benchrest shooters?
.003 under will only shave certain brands of bullets. Boat tail ammo will seat just fine, no shavings, with an extraordinary amount of grip. Flat base bullets will shave, for those you need .002.
If you read the OP, you will notice the OP knew with a reasonably high likelihood what the culprit was (expanded necks too far due to crud on the expanding plug).
He asked for any other ideas should that not work, and many were given.
No bad advice here, save one post using a crimp die to solve the problem (which wouldn't work alone, if the brass was oversized to begin with, but COULD help if he still had light neck tension AFTER resizing).
The question he posed was how to fix the 300 brass he already sized with the too-large expanding plug. (and the answer was to check the mandrel, hone if necessary, resize them, or use a collet die, or xyz).
He also mentioned he tried NEW bullets to the same effect, so your bullet-being-pushed-back-too-far argument is not really relevant.
If you read the OP, you will notice the OP knew with a reasonably high likelihood what the culprit was (expanded necks too far due to crud on the expanding plug).
He asked for any other ideas should that not work, and many were given.
No bad advice here, save one post using a crimp die to solve the problem (which wouldn't work alone, if the brass was oversized to begin with, but COULD help if he still had light neck tension AFTER resizing).
The question he posed was how to fix the 300 brass he already sized with the too-large expanding plug. (and the answer was to check the mandrel, hone if necessary, resize them, or use a collet die, or xyz).
He also mentioned he tried NEW bullets to the same effect, so your bullet-being-pushed-back-too-far argument is not really relevant.
grubbylabs
Member
I think Trent has it here. He needs to examine his equipment measure and clean then try again.
rcmodel
Member in memoriam
Doesn't anyone here own a chamfering tool??
rc
grubbylabs
Member
I threw it in the trash I thought it was useless. Don't tell me I should have kept it.
grubbylabs
Member
I am just pulling rc's chain. I chamfer every case.
I agree measure but I never seen a post where he did. I see one saying another Lee die problem & the problem is still unknowen.
I use the bullets that Im sure he is talking about & bet I know wnat is going on but there needs to be more info to know. A FCD may have been the best answer or stab in the dark.
If that is the problem then they can be shied to me & I will put them with the other 6000 Im trying to dispose of in my bolt gun 1 at a time.
Just measured mine & .3075 behind the cannelure & .308 ahead of it.
I use the bullets that Im sure he is talking about & bet I know wnat is going on but there needs to be more info to know. A FCD may have been the best answer or stab in the dark.
If that is the problem then they can be shied to me & I will put them with the other 6000 Im trying to dispose of in my bolt gun 1 at a time.
Just measured mine & .3075 behind the cannelure & .308 ahead of it.
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Mic the bullets. I use Hornady and RCBS F/L die for my lr-308. Expander for both is .307, no problems. You can use 600 emery to take .001 or so off the expander if needed, Lee is a tapered pin, not a ball. Get a case gauge and use it. I've had troubles with LEE die not setting the HS properly. Make sure your primers are below flush. I had a problem with .243 and did the N/S trick with the de-capper pulled out, on loaded rounds. Kind of worked for a bolt gun but NOT a S/A.
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