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Cronographed .243 AI loads First time

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Unread 09-03-2013, 05:01 PM
Platinum Member
Join Date: Mar 2011
Location: Reno, Nevada
Posts: 1,012
Cronographed .243 AI loads First time

I Cronographed my loads in my .243 AI for the first time Monday. My accuracy load was 44.5 gr of H4350 and the Sierra 100gr Pro Hunter at .306, 4 shot group. The Velocity averaged 3115................. Is this fast or Slow? I tried H4831SC but never got that accuracy that I did with H4350 Groups usually were at .587 with 4831 and .306 when using 4350
What do you get in your Ackley when using bullets from 95-100gr............? What powder do you use.

My barrel lenth is 24"
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Unread 09-03-2013, 11:42 PM
Silver Member
Join Date: Sep 2012
Location: Northern Colorado, Saint Francis, KS
Posts: 132
Re: Cronographed .243 AI loads First time

Well as soon as the wind stops blowing and it's not 100+ here, I will go shoot some 105 bergers with mine, using 4831sc. I would think you ought to be pretty close.
Pic out a spot,a single hair, and aim for that spot.
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Unread 09-04-2013, 08:00 AM
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Join Date: Jan 2008
Posts: 1,494
Re: Cronographed .243 AI loads First time

I would say that your are about right. With the standard 243 real world velocity on average with 100 gr bullets is around 3000 fps so the AI gave you the average 100 fps more velocity. I would stick with the good accuracy you are getting instead of a few more fps velocity. Accuracy is where it is at. A miss at a couple more hundred fps is just a fast miss.
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