Range Report First Real OCW Test

[diderr]

My first ever OCW followed to the “T”
Shot round robin with time to cool.
Mk12 mod 1 clone w/ AEM5
Leupold MR/T
Bipod and rear bag
100 yards

77 TMK
XBR
CCI 400
LC 12’

23 grns- .596” ctc
23.2 grns -.631” ctc
Do you guys think 23.1? Also, is it even worth playing with seating depth? I’m running max mag length with slight room to function properly
The load will be used out to 900 on targets and 700 on coyotes and other small critters

 

[msmith64]

My first ever OCW followed to the “T”
Shot round robin with time to cool.
Mk12 mod 1 clone w/ AEM5
Leupold MR/T
Bipod and rear bag
100 yards

77 TMK
XBR
CCI 400
LC 12’

23 grns- .596” ctc
23.2 grns -.631” ctc
Do you guys think 23.1? Also, is it even worth playing with seating depth? I’m running max mag length with slight room to function properly
The load will be used out to 900 on targets and 700 on coyotes and other small critters

I would choose 22.7 and once you shoot a couple groups then you can decide if you want to play with seating depth. I see you mentioned group size in case you were unaware this process has nothing to do with group size it is the location of point of impact

 

[regency]

You have a chrono?

 

[pell1203]

23 - 23.2 have a tighter centered group than 22.6 - 22.8, therefore I'd go with 23.1 as well as that would put near the center of thr accuracy node and it likely gives you a slightly higher velocity to get out a few yards further. Try loading some at 23.1 and see how it does.

I agree, with a 77 gr bullet you probably won't have much room to play with seating depths. 2.26" or max mag length minus a couple of thousands should work out fine.