Help with this bullet strike pattern.

[MOA or bust]

I got off the lead sled and have now shot several groups off sandbags with no real change in this pattern (first shot is 1/2 MOA low then next two are well grouped. Should I assume this is a bedding issue and get the recoil lug, and maybe the whole action bedded?

 

[Barehandlineman11]

Bedding issue or load issue.

 

[Barehandlineman11]

Whats 4,5,6 doing? Ive seen similar issues with suppressor and them warming up

 

[gohring3006]

Is just cold bore or every three shot group?

 

[MOA or bust]

The first shot is cold bore. Usually only shoot 3 rounds (have range at farm 10 minutes from my house). Have been using new suppressor. I feel like if I shot a group of first shot, cold bore rounds they would be very tight. I'm a hunter and that first round is the most important. The whole group is under MOA, so maybe I shouldn't be so picky. But we are!

 

[gohring3006]

It's a common phenomenon, and can be hard to remedy. I use hex boron nitride to help with my loads, and it does fairly well in keeping the cold bore shot in the group.

 

[HSmithTX]

If it shot that tight with the 8133 load and repeated it isn't a bedding issue. Bedding it isn't going to hurt anything for sure, but in this case I don't see it fixing anything either. I would change bullets, powder, primer, in whatever order you have components for. If it were me I would change powder first.

 

[Barehandlineman11]

Have you tried without suppressor?

 

[MOA or bust]

Come to think of it, I didn't notice this problem before the suppressor. I got the rifle 18 months ago and shot it with plugs and earmuffs before I got a suppressor. I started noticing significant decline in my hearing so I stopped shooting for a year until the suppressor finally came in.
See post number 14 for best group pre suppressor, but this showed ejector marks and I had to back down.

 

[Barehandlineman11]

Id pull it put break on see if still does it

 

[MOA or bust]

Sorry, I'm not gonna ever shoot without a suppressor again. My hearing is too important.

 

[Barehandlineman11]

earmuffs are amazing things

 

[BillLarson]

I would start with 6 fouling shots....... then cold bore 3 shot....

 

[buckbrush]

I've experienced this with a couple of gun/suppressor combos. I was able to tune it out with load development. I'd do a little tweaking to your load.