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.223 Headspace problem?

 
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  #1  
Old 07-21-2009, 01:07 PM
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.223 Headspace problem?

I have a Tikka varmint .223 that shoots Blackhills reloads just fine. I bought some new Win. brass at cabelas last year and worked up some loads with Win 748 powder. I started at 26 g. witch was way to much for this rifle. Totaly flattend the primers on the first 2 shots. Third shot case sepparated in half! I backed down to 24 g. and worked slowly up to 25 g.
Now here is the problem, after the shot the primer sticks out .027 of the brass. The bolt can't grab the case and extract it. It doesn't matter what powder charge I use. I can't even get the brass into the shell holder to reload because of the primer sticking out.
I have 400 rounds of this new brass all primed and I am totaly stumped. I don't know If the chamber accepts the Lakecity brass better than this new Win. brass?
Anybody have any ideas I would really appreciate it.

Last edited by tlshootst; 07-21-2009 at 03:08 PM.
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  #2  
Old 07-21-2009, 03:06 PM
KDB KDB is offline
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Re: .223 Headspace problem?

I don't have a definitive solution for you but here are some ideas to check. I don't think that it is a headspace problem because your Blackhills LC brass shows no signs, right?

I would recommed getting some good brass, Lapua or Norma, load them and see if you have the same problem. Sounds like the primer pockets are not to spec on the winchester brass or the webbing in the case head is too thin causing the primer to push back after firing.

I would also check the fired cases against the unfired cases and see if the shoulder angle is different, if the case has streched more than normal. If so, then that would be a better indicator about a headspace issue.

I hope that this helps.
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Old 07-21-2009, 07:08 PM
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Re: .223 Headspace problem?

tlshootst ..........

When a case separates it's because of excessive headspace clearance, and when a primer has enough room to back out it's because you have a WHOLE LOT of headspace clearance.

- Innovative
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  #4  
Old 07-21-2009, 09:42 PM
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Re: .223 Headspace problem?

Thats what I thought but why does BlackHills ammo shoot just fine?
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  #5  
Old 07-22-2009, 01:43 AM
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Re: .223 Headspace problem?

Is there any chance that the Winchester brass is .222?
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  #6  
Old 07-22-2009, 06:42 AM
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Location: Casselberry, FL
Posts: 190
Re: .223 Headspace problem?

Using 222 ammo would be a REAL headspace problem in your 223 rifle. This picture from my website shows a 300 Win Mag case that was fired in a 300 Weatherby rifle . . . . what a stretch . . . . and dangerous.


300 wby. / 300 Win. / 300 Win.

tlshootst .........
Your Blackhills ammo worked fine, because the headspace clearance (at the shoulder) was within acceptable tolerances. Check your personal email messages.

- Innovative
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  #7  
Old 07-22-2009, 08:19 AM
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Re: .223 Headspace problem?

My Speer manual shows 1.557 from bottom of case to the top of shoulder to neck junction. Doing the best I can with a digital caliper the Blackhills amo measures 1.560, the new Win. brass measures 1.538
Thats .022 shorter. Then I measured the fired Win. brass and the case has not streched, still measures around1.538
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