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7X338 Norma 35 deg Improved

 
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  #8  
Old 02-21-2010, 02:23 PM
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Re: 7X338 Norma 35 deg Improved

pretty much identical just a smidge longer. You know you are getting me excited for mine now.

Brent
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  #9  
Old 02-21-2010, 09:00 PM
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Re: 7X338 Norma 35 deg Improved

krlemas,
can't help you with the A-MAX, as I don't shoot them.
Keep us informed on your results. I have a friend building a 284 JAZZ that is basically the same as the 7-338 NORMA. Just not sure what the shoulder angle is.
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  #10  
Old 02-21-2010, 09:06 PM
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Re: 7X338 Norma 35 deg Improved

30* if I remember correctly


Brent
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  #11  
Old 02-21-2010, 09:29 PM
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Re: 7X338 Norma 35 deg Improved

Ken,
I shoot an 7STW and have loaded the 162 A-Max's. It is a Weatherby factory chamber so it has a lot of 'Freebore'. I use H-1000 powder and run them @3150fps. These bullets are moly coated that I shoot.
Have not used them on game in this caliber but have and do use the 105 A-max's in a 243AI and took my first 'goat this year with that particular rifle. took it 375 yards killed it right there, heart shot. Was hoping for 750 or better shot but there were just too many too tight with alot of Wy wind. And had been shot at for a couple weeks.
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  #12  
Old 02-22-2010, 07:21 AM
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Re: 7X338 Norma 35 deg Improved

Brent,
thanks for the info.
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  #13  
Old 02-23-2010, 10:18 AM
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Re: 7X338 Norma 35 deg Improved

I shoot the Bob Cauterucio 189 grain VLD in my RUM and with 90.7 grains of IMR 7828 I have chronoed this at 3150. I also shoot the Berger 168 & 180 and qwith the 168 I have a load of 88.5 grns. of Retumbo that is just one ragged hole but haven't chronoed it yet and this is out of a 26" tube. I found that the 168 VLD Hunting Bergers shoot a little bit better than the 162 A-max. I hope this will help a little with your load buildup.

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  #14  
Old 02-23-2010, 12:17 PM
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Re: 7X338 Norma 35 deg Improved

Quote:
Originally Posted by Forrest Ebert View Post
I shoot the Bob Cauterucio 189 grain VLD in my RUM and with 90.7 grains of IMR 7828 I have chronoed this at 3150. I also shoot the Berger 168 & 180 and qwith the 168 I have a load of 88.5 grns. of Retumbo that is just one ragged hole but haven't chronoed it yet and this is out of a 26" tube. I found that the 168 VLD Hunting Bergers shoot a little bit better than the 162 A-max. I hope this will help a little with your load buildup.

Thank you for the information I was at the range on Monday for more testing found that going up to 90 gr. of Retumbo with the 168 SMK opened my groups so I think I will call 89 my maximum for the 168's. I have some 180 Bergers now that I plan on trying, what load are you using with them? My rifle likes the 168SMK's so I plan on ordering some Berger 168's and working with them. I did get the 162 Amax going 3404 with 91 gr. Retumbo but I am not satisfied with the grouping so I am going to back off and maybe try a different powder maybe H1000 or R-25.

Ken
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