My strange recurring 5-round groups

[Jefferson]

it is you,

while shooting my ftr in 308 at 600 and 800 meters in practice with 185 juggernaut I experienced the same thing

it turns out my hold was not consistent on the rifle

I had to hole the rifle a little harder into the shoulder compared to the 155.5 triple nickels I had been shooting for 2 years

it took 2 trips to the range at 100 and 600 yards to get the right hold into the shoulder

not to tight and not to loose, then the groups formed into one group and not 2 distinct groups

you seem to have gone through the usual culprits and this also helps

BUT IT IS YOUR SHOULDER HOLD STRENGTH at play here

thank you,

it is hard to diagnose and I would buy your barrel in a heartbeat if you are selling cause you have been told it is your barrel

your groups look good to me,

stuff happens and by perfecting your holding the rifle into the shoulder a bit you will love your rifle

it is not a flinch just the pressure into the shoulder that changes

EVEN A LITTLE BIT, AS LOW AS A POUND MORE HOLD CHANGES THE POINT OF AIM

Your group is tight otherwise

if you need to chat pm me

I am building a 338 this winter and gathering parts as we speak

Have fun my friend you are almost there

 

[Ganderite]

Does your cheek touch the stock? I just let my whiskers kiss the comb. No pressure means no changes.

I have shot thousands of groups - usually 10 shot groups. As they form, I see some spectacular 5 shot groups that become average 10 shot groups as they fill in.

5 shots don't mean much.

Shoot some 10 shot groups. If the 2 groups become one round group, that is what your rifle shoots.