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338 lm loads

 
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  #8  
Old 11-29-2011, 02:50 PM
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Join Date: Sep 2011
Posts: 16
Re: 338 lm loads

I have not tried any other bullet, when I got the scenars I was going to get the berger hybrids also but they only had them in the 250 count. Are the sierras just a target bullet? Any suggestions? The best I have done at a grand is a minute thats only three shots I was hoping to do better or is that about right? Thats 3 clicks back to the left from the spin drift should it be that much drift? What about you Ken Snyder what do you think I should load up?
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  #9  
Old 11-29-2011, 07:54 PM
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Join Date: Dec 2001
Location: Southwest Desert
Posts: 754
Re: 338 lm loads

Out of my 30" Rock/ABS barrel I use 91.5grs of Retumbo under the Berger 300gr Hybrid.
.5 moa out to 1200yds for 3 shots is the norm, average 2800 fps.
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  #10  
Old 11-29-2011, 09:28 PM
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Join Date: Jul 2010
Posts: 420
Re: 338 lm loads

Wasp thats a pretty hard choice for me to make for you. I use the 300 gr. Sierra Match King for a long range hunting bullet. Quite a few of the younger guys that shoot larger 338 cartridges are finding really good results with the Berger. In the past most of them preferred the 250 gr. match king. I think there are two things that are keeping me from switching to the Berger, number 1 is availability in my area If I run out of Sierra I can pick them up at a number of local shops, number two is I feel that the Berger requires a little faster twist than what I currently have. When I'm in areas that have a good chance of producing the need for a close range shot I keep my rifle loaded with a good heavily constructed conventional hunting bullet. I keep the scope set for the long range bullets and switch over to the Matchking when shots will be long enough that the standard hunting bullets groups exceed the size of the kill zone, or at the yardage that I start having difficulties with Point of impact. The 338 Lm is actually quite a monster masher when loaded in this manner I feel that I can have my cake and eat it too! -
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  #11  
Old 11-29-2011, 10:53 PM
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Join Date: Sep 2011
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Re: 338 lm loads

What about your powder Ken?
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  #12  
Old 11-29-2011, 11:04 PM
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Join Date: Dec 2009
Location: NW MT
Posts: 2,552
Re: 338 lm loads

I shot 87.5 grns. Retumbo out of my 338 Norma,w/300 gen 2, fed 215, and get 2725. This has been good for several 1-2" groups @ 400 yrd. Have shot into 6" @ 1000.
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  #13  
Old 11-30-2011, 08:36 AM
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Join Date: Jul 2010
Posts: 420
Re: 338 lm loads

My 2 favorite powders in them are IMR 4350 and Re-22. These two powders are often over looked because their maximum velocities are already about 100 fps slower than some other powders. and they don't throw as consistent of powder charges as some other powders so they require a small amount of extra time at the reloading bench. The Big bonus that I find in these two powders are a very consistent velocity across the chronograph, most register as a duplicate. I don't ever use the std. deviation button because I look for the maximum velocity difference between the slowest round and the fastest round ( I never have been able to tell which one of my rounds are standardly deviated by looking at them ). 15 fps is what I look for, and am certain that the majority of that spread is from my inability to shoulder the rifle the exact same way every time, the more not movable the rifle sees me and the tighter I pull in on my recoil pad the higher the velocity gets and the opposite is also true. I am happy to see a trend of people actually starting to give realistic appraisals of average accuracy instead of the accidental best they have ever shot. This brings me to the wind, The Wind witch isn't evil, she requires a long courtship!
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  #14  
Old 11-30-2011, 10:11 PM
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Join Date: Sep 2011
Posts: 16
Re: 338 lm loads

How much powder?
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