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Lake City reload problem?????

 
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  #8  
Old 12-23-2013, 12:42 AM
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Join Date: May 2002
Location: Souderton, Pa.
Posts: 144
Re: Lake City reload problem?????

Yep lesson learned for sure. The long and the short of it is I just didn't have time. I had to get them loaded. I figured since the rifle was 5.56 and the cases were 5.56 as long as I properly loaded the rounds I was good to go. Ole Murrphy's law again huh?? Heck other than the fact that they don't work I really can't see what is wrong with them. I guess it's that one measurement that is causing the problem but even with that I still don't see any marks on the cases to indicate it being to tight or rubbing. Obviously it is. This rifle must have one tight chamber. When I drop the round into the chamber by hand it sound like and looks like it is in there properly. I guess it's just not seated quite right and when the bolt hits it it forces it in the chamber pretty hard.

I just want to make sure I understand what your saying. The Lee full length die won't work because my chamber is really just a touch under spec, to tight and the original firing of the Lake City brass was in an chamber that was a bit oversize or over spec. Now the RCBS will take the entire oversize Lake City case and make it smaller in diameter that will allow the round to enter the chamber. Is that correct???

It sounds like this is a common problem with once fired milspec brass in a civilian AR since RCBS went to the trouble to make an undersize die set.

So the fix is the RCBS two die set right?
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  #9  
Old 12-23-2013, 01:01 AM
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Join Date: May 2012
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Re: Lake City reload problem?????

Quote:
Originally Posted by thumbs View Post
Yep lesson learned for sure. The long and the short of it is I just didn't have time. I had to get them loaded. I figured since the rifle was 5.56 and the cases were 5.56 as long as I properly loaded the rounds I was good to go. Ole Murrphy's law again huh?? Heck other than the fact that they don't work I really can't see what is wrong with them. I guess it's that one measurement that is causing the problem but even with that I still don't see any marks on the cases to indicate it being to tight or rubbing. Obviously it is. This rifle must have one tight chamber. When I drop the round into the chamber by hand it sound like and looks like it is in there properly. I guess it's just not seated quite right and when the bolt hits it it forces it in the chamber pretty hard.

I just want to make sure I understand what your saying. The Lee full length die won't work because my chamber is really just a touch under spec, to tight and the original firing of the Lake City brass was in an chamber that was a bit oversize or over spec. Now the RCBS will take the entire oversize Lake City case and make it smaller in diameter that will allow the round to enter the chamber. Is that correct???

It sounds like this is a common problem with once fired milspec brass in a civilian AR since RCBS went to the trouble to make an undersize die set.

So the fix is the RCBS two die set right?

If you are in a time crunch I'd cycle all of your ammo through your rifle in a safe location and cull the ones that don't chamber easily. Those will have to be torn down and sized again with a SMALL BASE sizing die to get everything to factory minimum dimensions and then reload.
I don't personally need to use a small base die with my ar, but I don't usually shoot pickup brass or buy once fired.
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  #10  
Old 12-23-2013, 01:11 AM
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Join Date: May 2002
Location: Souderton, Pa.
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Re: Lake City reload problem?????

No not in a time crunch now that was a while ago. Yeah if I had to do it over again I would have bought new.223 ammo and sucked up the cost. Actually not only would it have been a lot cheaper but the time and aggravation factor would have been down to nothing. Oh well live and learn. I thought I was doing the smart thing and it ended up costing me quite a bit.

I would fire these things but I am afraid they will hang up on the chamber and I'll have more hassle than it's worth. I'll just go at it nice and easy and work through the ammo until I get it done. I will however use the RCBS dies and do maybe twenty and try them out first. If they still don't work I'll have to buy new .223 ammo and start with fresh stuff that I know will work and be able to be reloaded with out much problem.
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  #11  
Old 12-23-2013, 01:52 AM
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Join Date: Dec 2009
Posts: 884
Re: Lake City reload problem?????

Quote:
Originally Posted by thumbs View Post

I just want to make sure I understand what your saying. The Lee full length die won't work because my chamber is really just a touch under spec, to tight and the original firing of the Lake City brass was in an chamber that was a bit oversize or over spec. Now the RCBS will take the entire oversize Lake City case and make it smaller in diameter that will allow the round to enter the chamber. Is that correct???

It sounds like this is a common problem with once fired milspec brass in a civilian AR since RCBS went to the trouble to make an undersize die set.

So the fix is the RCBS two die set right?
The issue is not that you have a tight chamber. The issue is that the military chambers the brass was fired in tend to be more generous (especially around the case head) for reliability reasons.

Yes, this is a common problem when reloading with military brass. I ran into the same problem loading 7.62 NATO LC brass (which is even worse than 5.56 in terms of loose chambers). All you really need is the small base full length sizer die:

RCBS Small Base Sizer Die 223 Remington

The good news is that you should only have to do this the first time you load milsurp brass. With my formerly machine gun fired 7.62 brass, I found that re-sizing with conventional dies and then following that with re-sizing through the small base die worked best. Some cases required A LOT of force to small base re-size on a single stage press. Sizing in two stages made things go a lot more smoothly. I also found that it worked better to do the primer pocket swaging and small base resizing as separate steps from the rest of the reloading process. Once the brass was fully prepped, it could then be used in the progressive press and loaded normally.
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  #12  
Old 12-23-2013, 11:44 AM
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Join Date: May 2002
Location: Souderton, Pa.
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Re: Lake City reload problem?????

Thanks Yeah just went down and checked more. Looks like the Lee full length die goes to about 1/4 in to where it tapers in for the extractor wring. That 1/4 inch is .003 larger on the Lake City once fired mil brass than the American Eagle. Again the AE runs fine.

Now the RCBS die has to size all the way to the bottom of the fired case. I think this is where the problem is. Does it size all the way to the bottom?
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  #13  
Old 12-23-2013, 12:10 PM
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Join Date: Apr 2007
Location: Fort Morgan, Colorado
Posts: 327
Re: Lake City reload problem?????

Thumbs, I ran into this very same problem once. I had rifle rebarreled to 264WinMag and used new brass and everything was great but sold the rifle and kept the reloading components and dies. Later on I found a good deal on an Encore custom barrel in 264 and drug out the components and started load development for it. Yep, the cases wouldn't chamber in the new-to-me barrel w/snug chamber. I had to run them into the FL sizer die until the case belt was bumped by the die in order to get them to chamber which was really hard to size to this extent, i.e. lot of resistance on the ram lever. A small base die would have done the trick but I just bought more new brass (was readily available then :( ) The new brass worked like new money from home.
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  #14  
Old 12-23-2013, 02:09 PM
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Join Date: May 2002
Location: Souderton, Pa.
Posts: 144
Re: Lake City reload problem?????

Yeah I am hoping the full length sizer will run a little easier since all my Lake City brass has been run through the Lee dies previously. The only part that really needs to be resized is the bottom 1/4 inch or so. At least I think so. Everything else looks good I think. I have 1000 rounds of this stuff. If I can save it that will be the way to go for me. Like its been said once I do the resizing I should be good to go. Again I hope.
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