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338 Norma Review By Ward W. Brien

 
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  #92  
Old 02-28-2011, 05:17 PM
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Re: 338 Norma Review By Ward W. Brien

Great group of guys on this site. If the last few threads of conversation would have taken place over on SH, there would have been a 3-4 page ******* match going on.
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  #93  
Old 02-28-2011, 05:29 PM
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Re: 338 Norma Review By Ward W. Brien

Oh yes sir. There are some real "**** Starter" over the on the 'Hide'. We don't need that, do we?
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  #94  
Old 02-28-2011, 07:49 PM
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Re: 338 Norma Review By Ward W. Brien

WWB Could you tale me what lench barrel is best and what twist. Richard McKinney made your first 338 norma he shot 6'' group at 1574 meters. Could you tale me what powder and bullet and barrel lench and twist Thanks for your time.

Last edited by new shooter; 02-28-2011 at 08:01 PM.
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  #95  
Old 03-10-2011, 09:54 AM
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Re: 338 Norma Review By Ward W. Brien

Gentlemen my barrel is chucked up in the lathe right now for 338 norma mag...

I just read 14 pages of good info and my eyes are now blurry for looking at my screen for so long...im pretty sure it was posted but i just didnt catch it but what bushing are any of you using? is it a .362"?

Thanks in advance

Chase
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  #96  
Old 03-10-2011, 01:58 PM
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Re: 338 Norma Review By Ward W. Brien

The Barrel Lug that I use is 1/4" thick.
The Barrel is manufactured by "Mark Chanlynn" of "Rocky Mountain Rifle Works," and his phone number is as follows: (303) 823-6270. He is one of the Very Best Barrel manufacturers around and has been making them for 40+ years. He also apprenticed under "Boots Obermeyer."

The Barrel has a 1:9.1" Twist ratio and at the time was 28" long. The ideal length of the barrel is 26" overall, however at the time, the barrel was 28" overall.

The powder that I utilize at my elevation, (8200 ASL) is Reloader 22 and the primers are Fed 215M.

There are two accuracy nodes that I load, one is 82.5 grains which gives me 2649 fps and the other is 84.2 grains which gives me 2,785 fps. The lighter load stabilizes at 100 meters and shoots basically a hole. The 84.2 shoots bigger at 100 meters, approximately 3/8" but shoots exceptionally small at and beyond 300 meters.

The bullets utilized are the 300 grain SMK's and they are loaded IN THE LANDS .003".

I have another .338 Norma that I have been working with that likes a jump and shoots the same whether .005" or at .02". The group size is one hole but once in awhile jumps an 1/8". I have 37 rounds down that pipe, so in a few more rounds I'll start seeking out a trend.

The .338 Norma is The Best Cartridge that I have ever shot. It works so well and the barrel life is 2.5 times longer than the LaPua with downrange Accuracy about three times better. That is a Fact.
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  #97  
Old 03-10-2011, 05:57 PM
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Re: 338 Norma Review By Ward W. Brien

WWB

Quite awhile ago we had talked on the phone and you were in the bigining stages of working up loads of Ramshot Magnum and Winchester mag primers for your 338 Norma.

I see you are still using RL22. What happened with the Ramshot?

Have you had any success with any powders other than RL22?
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  #98  
Old 03-10-2011, 06:40 PM
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Re: 338 Norma Review By Ward W. Brien

In my opinion, the Ramshot was a little too hot for the altitude. Up here, (8200' ASL) 1/10th of a grain makes a noticeable difference. Powder has its own O2, however at my altitude the O2 is decreased by (I think) 30%. So, when the bullet makes its initial jump and the combustion/flame is exposed to the atmosphere, the burn rate is different.

When I first moved here from Los Angeles, the loads for my .300 Win Mag didn't work. I went from shooting very small groups to 1+ inches at 100 yards. After many attempts of rectifying the problem, an acquaintance of mine told me that I needed to go to a slightly slower burning powder and that 1/10th of a grain made a difference. So, I changed from IMR 4831 to H4831SC and it worked.

I have heard from others that the Ramshot Magnum powder and the Winchester Large Rifle Magnum primers work very well at lower altitudes. So, there you have it. I'm now back at working up a load for a new .338 Norma that Mark Chanlynn built for me, and I am again utilizing the RL22.
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