Was wondering if anyone has any personal load data on the 390gr Hornady Atips for 375 cheytac. I have a couple boxes on the way and am new to 375 cheytac. I have a 10.5 twist barrel and hope Hornady is on the money with the recommended twist rate.
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From what Data I have found from others, I am going to start with two different loads. The powder being used is Retumbo @ 123.0gr and 124.5gr. COAL with the Atips in 375Cheytac @ 4.322”. I purchased the rifle second hand, being told that it has very low round count. It is quite a short barrel for being chambered in 375CT @ 26” with a 10.5” twist.
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I ended up settling on 123gr of Retumbo with the Atips. Out of the 26" barrel I am getting 2850fps with great accuracy (that was with an Elite Iron Windtalker SD suppressor attached). I shot the rifle out to 1800yds with impacts on a 3moa target. Having a tough time getting more Retumbo so looking to possibly use something else in the future.
Hey Mr.MRAD, I'm having a 375CT built and starting to get my loading ducks in a row. Were you able to test any other loads with the 390 A tips?
for the 390s, there's a whole thread if you search
The magic is found seating 0.100" off, and using a very slow powder like H50BMG, RL50, maybe N570 if you don't care about barrel life and 20n29 if you don't care about temp sensitivity.
The magic is found seating 0.100" off, and using a very slow powder like H50BMG, RL50, maybe N570 if you don't care about barrel life and 20n29 if you don't care about temp sensitivity.
OK. Thank you. I thought this was the thread. I'll have a look. I have the H50 and N570 to get me started. I,m learning the case while loading for a friends new Cadex(1:10). My custom build(1:8) will be cut for the 400CE Lazers. Largest case prior is 300PRC.
Appreciate your help and input.
390 grain Hornady A-Tip load development 375 Cheytac
I loaded up 5 each of 124 126 and 128 grains of vv n570 in junk Jamison grass; got 2925, 2975ish and 3015 fps with those all with SD less than 7; accuracy was kind of all over the place in a 1-10 twist Lilja barrel, 35"; pockets were loose to start with, starting to get ejector swipes at the 128...
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