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FordV8 · June 4, 2012, 03:29 PM

Update

Went to the range today.

With the "thread relief shim" in place there was very little POI shift.

Went back and forth a few times to verify. It's not perfect repeatability but it's close. POI shift was less than 2 inches every time, and sometimes less.

That amount of shift doesnt bother me. I zero'd with the suppressor and plan to shoot it that way.

Problem solved.... and my groups tightened a little especially with 155 A-Max. This barrel seems to prefer the 155 A-Max so far.

Also shot the SCAR 17s. It seems that POI shift is always 4 or more inches down. I may try some shims to see if I can shift it but... it's a lightweight barrel. I can almost see it sag (LOL!) when the Can is on.

June 4, 2012, 03:29 PM	#12
FordV8 Member Join Date: February 17, 2011 Location: Southern USA Posts: 15	Update Went to the range today. With the "thread relief shim" in place there was very little POI shift. Went back and forth a few times to verify. It's not perfect repeatability but it's close. POI shift was less than 2 inches every time, and sometimes less. That amount of shift doesnt bother me. I zero'd with the suppressor and plan to shoot it that way. Problem solved.... and my groups tightened a little especially with 155 A-Max. This barrel seems to prefer the 155 A-Max so far. Also shot the SCAR 17s. It seems that POI shift is always 4 or more inches down. I may try some shims to see if I can shift it but... it's a lightweight barrel. I can almost see it sag (LOL!) when the Can is on.