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first groups with 22-250 AI excited! but confused?

 
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  #1  
Old 11-30-2010, 06:37 PM
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Join Date: Feb 2009
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first groups with 22-250 AI excited! but confused?

I was tired of looking at the peices of my 22-250 AI build just sitting in a box, so I put my 26" SS match select shillen barrel on my model 10 savage action using head space gauges I bought from Midway. put the Bell and carlson Varmint tactical medolist stock on and last but not least my NF 5.5-22x56 scope. This build took a grand total of 20 minutes of assembley and bore sighting!
Starting load 35 grains H-1000
75 grain A-MAX
Win. brass, CCI 200 primer
loaded .003 off lans.
I shot three groups at 100 yards and the first three shots of each group got me excited and pumped about this gun. I let my fourth shot of each group fly and my fifth would go right back to the others.
Here is the crazy part of this! Through my chrono. my speed with this load was only 2380 FPS. and my spreads were between 60 and 90 FPS! That is flat out horrible in my mind. I didn't know I could makes a 22-250 shoot so slow! My confusion is why were the groups as tight as they were with such speed difference? Does this meen that this rifle will shoot lights out with a finaly tuned round?



I was shooting off a bench with the Bipod you see and a sand bag in the back. Any oppinions or advice on what direction I should go would be great. Thanks guys
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  #2  
Old 11-30-2010, 08:02 PM
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Join Date: Oct 2009
Posts: 12
Re: first groups with 22-250 AI excited! but confused?

Ive never shot a 250AI but, my 6.5*300 weatherby uses that powder, try h4350, i think you are waaaaaaaaay to slow on burn rate. ed
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Old 11-30-2010, 08:19 PM
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Join Date: Feb 2009
Posts: 474
Re: first groups with 22-250 AI excited! but confused?

That is what I figured but I pulled the load off of Hodgen's web site. The load was for 70 grain bullets, I am shooting 75 grain so I bumped it back a grain. Thanks for the info I have some RL 15 and I will give that a try too.
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Old 11-30-2010, 08:26 PM
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Join Date: Dec 2008
Posts: 862
Re: first groups with 22-250 AI excited! but confused?

i had 1 years ago and used h-414 or w-760 worked real well. then i was shooting 52 grainers over 4k fps.
mike
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  #5  
Old 11-30-2010, 08:55 PM
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Join Date: Oct 2006
Location: Oregon City, OR
Posts: 481
Re: first groups with 22-250 AI excited! but confused?

at a 100 yrds, velocity spreads are not that critical. You can have huge swings with great groups. that is why shooting over a chrono helps, because at long range that FPS ES will bite in the butt.

Try shooting the groups at 300 and the velocity and vertical spread will show its self much better.

I would think h-1000 is way slow for the 22-250, but what do I know? Heck I would think H4350 would be closer, but still slow.
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  #6  
Old 11-30-2010, 09:06 PM
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Join Date: Feb 2009
Posts: 474
Re: first groups with 22-250 AI excited! but confused?

thanks for the info on the Chrono. Yea I should have started with a different powder I knew better anyway. But I got some fire formed brass out of the deal.
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  #7  
Old 11-30-2010, 09:39 PM
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Join Date: Dec 2001
Location: Winterville, NC
Posts: 1,487
Re: first groups with 22-250 AI excited! but confused?

Trophy Hunter,
Nice looking rifle. Looks and sounds like it's going to be a fun rifle to work with as those first few groups are promising. It is encouraging when a rifle starts out shooting good from the git-go. Have fun. JohnnyK.
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