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22-250 AI and 75 amax

 
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  #1  
Old 01-06-2009, 10:48 AM
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Location: bismarck ND
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22-250 AI and 75 amax

i am trying to find a load for my 22-250Ai i am pushing a 75 grain amax. i have tries varget and that doesnt work. i have also ran up to 42 grains of 4831sc and i was only able to get3250 and accuracy wasnt great. i am trying to use a powder that is not temp sensative. i shoot from below zero to 90deg.

what is a good powder for this combo?
how far off the lands if any with the amax?

thanks you in advance for any help....
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  #2  
Old 01-06-2009, 11:44 AM
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Location: Idaho Falls, Idaho
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Re: 22-250 AI and 75 amax

As far as velocity is concerned, H4895 (Hodgdon Extreme Powder) Should yield the fastest velocities. I use it in my father's custom .22-250 Rem.

As far as accuracy for the 75g V-max, What is the twist for your bbl?? That may be the cause of the in-accuracy of the loads.

My Father's custom .22-250 is at it's best with a 55g V-Max with H4895. Quite a Rockchuck or Coyote killer.

Dan
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  #3  
Old 01-06-2009, 01:33 PM
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Re: 22-250 AI and 75 amax

I don't think twist is the problem I had this gun built for 75 amax in a broughton 8 twist
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Old 01-06-2009, 02:06 PM
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Re: 22-250 AI and 75 amax

Try this, it should give you a place to start from. With an 8 twist you could probably go up to a 80gr SMK also.

Dave

.22-250 Ackley Improved @ www.reloadersnest.com
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Old 01-06-2009, 02:23 PM
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Re: 22-250 AI and 75 amax

i actually have 80gr berger vlds also.as for the seirras i was worried that the they wouldnt open on a coyote or fox. i am trying to find a load for the amax because i have 600 of them. this rifle is my varmate gun.
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  #6  
Old 01-06-2009, 03:04 PM
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Re: 22-250 AI and 75 amax

tjonh2001,
I had a hard time getting my .22-250 (1-14" twist) to shoot the 52gn A-Max's. I was perplexed because this rifle shot the 52gn Sierra MK into .2's. I tried every powder I had that I thought was within the speed range needed for the rifle/bullet combo. I know I tried IMR3031/4320/4895, Varget/H414/H4895/BL-C(2) and Alliant's 10X & RL15. The best I got was about 1/2" for 3 shots at 100yds. I actually shot a couple of boxes of those A-Max's trying to find a decent shooter.
Then I ran across some VihtaVuori N133. (I bought that because I had a .223 at the time with a 1-9" twist) I tried the last few A-Max's with this powder and CCI BR2's in my .22-250. The first group (31.5gn) ran .2795". Subsequent groups were 32.0gn = .8705", 32.5gn = .6100" and 33.0gn = .7670". Velocities were 3692, 3733, 3807 and 3831fps. Too bad I was out of them as I vowed myself I wouldn't spend anymore of my money on those darn Hornady bullets - in any caliber!
I've since gotten rid of the .22-250 and .223, but I still have the N133. Good luck with those A-Max's! JohnnyK.
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  #7  
Old 01-06-2009, 09:32 PM
gbp gbp is offline
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Re: 22-250 AI and 75 amax

i have not had time to start working up loads for my 250ai yet but the load that has been repeatedly recommended to me was 39+grns of rl15 with the 75 a-max
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