When I tested mine I used the same lower for each different upper. Told myself that if I used the same exact lower everywhere that I could rule out any differences caused by this one or that one having a nicer trigger or whatever.
I know it shouldn't but still...
Already said I do not own any pencil barrels but if I had to venture a guess your results (a SOCOM compared to a pencil) are going to be about the same as mine comparing an HBAR to a Gov Profile. After you heat them up a few mags worth you will notice a difference.
Wish you luck and hope you have fun with your experimenting sir.
My opinion too. When I first got into 2 gun matches I shot irons because I didn't know what kind of optic I wanted. I learned a lot using them and I like the clean light look of irons. A good optic is better of course so I ended up with an Aimpoint Comp M4 w/ Aimpoint 3x magnifier.
I always sight in with irons first.
Last edited by 1986s4; 10-07-21 at 06:26.
Ballistic Advantage and Faxon barrel test. No noticeable zero shift after a mag dump with either.
Same test.
Faxon(not much if any shift due to heat) vs. Colt SP1(fair amount of zero shift due to heat).
Small/single samples and all that good stuff.
Curious what your newer(I assume) Colt barrel does when hot.
Last edited by jsbhike; 10-07-21 at 18:02.
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