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338 edge once fired primer pockets loose

 
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  #1  
Old 04-28-2011, 07:52 PM
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338 edge once fired primer pockets loose

my 338 has bean shooting like a house on fire with no pressure signs until now. Having fired my initial 200 pieces of virgin brass, I just started reloading them and found about 35% have loose pockets after a single firing. I am going to reduce the load from 92 to 89.5...................That being said......new brass has a .205 inside diameter pocket, cci250 primers are .210-.211 all but one of my loose brass is .208-.209 and all the rest of the brass is .207ish...........Is there a technical limit? (how loose is to loose) The only piece that will drop a primer is .211 and already in the trash. Feel doesn't help me. Any one know at what measurement I should draw the line? or what would be normal in this round? Thanks, Duke
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Old 04-28-2011, 09:23 PM
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Re: 338 edge once fired primer pockets loose

What velocity were you getting with 92gr of h1000??
What brass are yoiu using??
What barrel length are you using?
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Old 04-28-2011, 09:26 PM
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Re: 338 edge once fired primer pockets loose

I was getting 2845 out of a 24" using remington brass and 300 smk. Correction: 2812 with 300SMK and 2845 with the bergers.

Last edited by D.ID; 04-29-2011 at 11:04 AM.
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Old 04-28-2011, 09:28 PM
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Re: 338 edge once fired primer pockets loose

All reports suggested super high velocity for the 24" barrel but no pressure signs.
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  #5  
Old 04-28-2011, 10:54 PM
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Re: 338 edge once fired primer pockets loose

2850fps in a 24" barrel might be some of your trouble most of the guys are shooting 30 inch barrels to get 2850fps.
Remington brass can be a little soft sometimes try using nosler 300 RUM necked up to 338?
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Old 04-28-2011, 10:59 PM
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Re: 338 edge once fired primer pockets loose

Yep I have had many discussions regarding the unusual speed. I will back it off. I have heard the nosler is even softer. Is it better? More durable?
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Old 04-29-2011, 09:25 AM
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Re: 338 edge once fired primer pockets loose

I like working a load with a set of 20. Then work them and see what they do, like pressure, sizing changes, case growth, etc and then I have a good idea on brass. Plus I dont load that many because if might want to try the ''NEW'' great bullet or powder.
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