Hi claw what powder you using I'm getting similar average 17mm (some all touching but I'm an average.shot) my load is 42 grains adi ar 2209 143 grain 143 eld x Not sure of velocity as chrony refused to work
Hi claw what powder you using I'm getting similar average 17mm (some all touching but I'm an average.shot) my load is 42 grains adi ar 2209 143 grain 143 eld x Not sure of velocity as chrony refused to work
I'm using Norma URP. Over the 2 groups at this load (the lower group above is a different load) the velocity ES was 17 fps and SD was 7 fps, so I'm pretty happy with that as well.
In my rifle the load that you are using gave me 2,600fps (24" barrel)
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If it's not a first round hit you need to practice more
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