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RANGE REPORT, 7 mag, and 162 A Max, and 168 VLD

 
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  #8  
Old 04-16-2012, 06:26 PM
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Re: RANGE REPORT, 7 mag, and 162 A Max, and 168 VLD

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Originally Posted by kermodie View Post
The 162 gr A-Max also has an accuracy node around 2950 fps. Verified in several rifles. I run 65 gr H4831 with Rem 9 1/2 M in Win brass and get consistant 1/4 MOA out to 800 yards with a 26" barrel. The 168 Berger and 70 gr Retumbo gives the same size groups but run at 3060 fps. It's worth a try in the 24" barrel. I find the Retumbo to be more consistant than the H1000.
I think you are onto something, about the accuracy node at 2950. My son has a model 70, that shoots at that speed, and is smokin' accurate. Have not chronoed anything yet, but now you have my curiosity up. I think I am on the right powder with this gun. My other 7 has a 26inch barrel, and LOVES H1000, and 168vld.
On another note,I get lower ES, and SD, when using h1000 where used, over Retumbo. I may stick with the 162 a max in this gun as well. Thanks for the reply.
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Old 04-16-2012, 07:08 PM
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Re: RANGE REPORT, 7 mag, and 162 A Max, and 168 VLD

I switched to the A-max in my 7mag and they work great. Best group shot last month was 6" @1098 yds. Use 71grs Retumbo, Fed GM215M primers, seated .017 off the lands. Barrel is a 26" Hart, 9 twist. MV is 2970. Lost accuracy at the higher speeds.
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Old 04-16-2012, 07:35 PM
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Re: RANGE REPORT, 7 mag, and 162 A Max, and 168 VLD

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Originally Posted by sendero72 View Post
I switched to the A-max in my 7mag and they work great. Best group shot last month was 6" @1098 yds. Use 71grs Retumbo, Fed GM215M primers, seated .017 off the lands. Barrel is a 26" Hart, 9 twist. MV is 2970. Lost accuracy at the higher speeds.
Those 162 A Maxes are shooters in everything that I have shot them in. My Sako 7 STW loves them, my sons 7 mag loves them and this one does too. I was given three boxes of the a maxes that preceded the ones we are shooting now. They do not shoot as well as the new ones. I think that they need a 1-8 twist to really stabilize them.thanks for the reply.
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Old 04-16-2012, 08:04 PM
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Re: RANGE REPORT, 7 mag, and 162 A Max, and 168 VLD

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Originally Posted by 7stw View Post
I think you are onto something, about the accuracy node at 2950. My son has a model 70, that shoots at that speed, and is smokin' accurate. Have not chronoed anything yet, but now you have my curiosity up. I think I am on the right powder with this gun. My other 7 has a 26inch barrel, and LOVES H1000, and 168vld.
On another note,I get lower ES, and SD, when using h1000 where used, over Retumbo. I may stick with the 162 a max in this gun as well. Thanks for the reply.
Before you give up on the Retumbo, try it with different primers. I found the 215's produced the highest ES. The CCI 200, and Rem 9 1/2M gave the lowest (12 and 10 fps respectively). I settled on the Rem 9 1/2M for both the H4831 and Retumbo loads.

58 gr H4350 is another good load in many rigs but produces lower velocity.
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Old 04-16-2012, 11:15 PM
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Re: RANGE REPORT, 7 mag, and 162 A Max, and 168 VLD

My 2 cents worth is on IMR4831 also, I have always got the most consistentcy and accuracy with it in the 7RM 24in. and 26in. barrels with bullet wts.of 140gr. and 160gr.
FE
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Old 04-17-2012, 06:55 PM
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Re: RANGE REPORT, 7 mag, and 162 A Max, and 168 VLD

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Originally Posted by Fred Ea View Post
My 2 cents worth is on IMR4831 also, I have always got the most consistentcy and accuracy with it in the 7RM 24in. and 26in. barrels with bullet wts.of 140gr. and 160gr.
FE
HEY, Ain't you one of them 7 mm STW lovers????? Thanks Fred, I do have some IMR 4831. Actually, I have about 4 lbs of it. Two pounds are in the " Dupont " cans. Yes, I agree, that stuff was the "go to " powder years ago before long barrels and super slow powders came out. Seeing how this rifle has a 24 inch barrel, that may just be the ticket. It does not have a accuracy problem, very accurate, I do not know the speed yet as I have just been doing some trial shooting. Then I will do some chrono work. Thanks for the reply, " Brother".
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  #14  
Old 04-21-2012, 08:21 AM
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Re: RANGE REPORT, 7 mag, and 162 A Max, and 168 VLD

I havent been reloading long, and keep realizing how much I dont know from reading these posts. I am basically holding the reloading manual's hand in everything, so customizing a load for my rifle is driving me crazy.
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