Folks,
I learned back the ancient days when the M-16A1 was new and wheel guns still rode the hips of most police, to zero a rifle using 3 shot groups, adjusting the sights or scope and shooting another group until it hit the proper spot on the 25 yard zero target, then firing a fresh target for conformation. This was followed by firing on the Known Distance range at 200 yards or whatever was available for verification.
Now I see, even on the TV, people using a machine rest, firing a single shot (after bore scope alignment) adjusting the sights to the point of impact and then verifying the zero with a single shot.
So, how do you zero your rifle.
Geoff
Who had tri-focal spectacle troubles zeroing his AR with a Leupold Rifleman Variable. Next week my range is open and I will work at long range.
I use 5 shot groups. It's called triangulation for a reason. Fire 5 shot group, adjust from center of group. Fire another 5 shot group to confirm. Never ever adjust sights based on a single shot. Although only carbines are zeroed at 25 yards or 200 yards. Rifles should be zeroed at 100 yrds to make the math simple shooting at longer ranges.
I use a bench rest and fire three shot groups. I've tried all of the gadgets and have returned to my original method. Bench rest and three shot groups.
I fire one round, without moving the rifle, move the reticle to the bullet hole. Fire another round and make the final minute adjustment. One can zero a rifle in 3 rounds with this methodology taught to me through counter sniper training at HK in 94.
I've also been instructed in zeroing like Bob explains. If I'm zeroing over 100 yrds, I use Bob's suggestion. At 100, what I described works quite well and takes a lot less time if you can zero from a bench and not field positions.
Used groups for my carbine as Bob describes. Brownie told me of his method learned at HK sniper school but haven't tried that method yet. Put a new sight on my .22 rifle and might give it a try. Will use what works when I pick up a .308 rifle bolt gun or M1A, hopefully one day soon.
Xerox my carbine as Bob describes. Brownie told me of his method learned at HK sniper school but haven't tried that method yet. Put a new sight on my .22 rifle and might give it a try. Will use what works when I pick up a .308 rifle bolt gun or M1A, hopefully one day soon.
I was trained the same way back in the day. But with modern firearms, ammo and scopes I find I can dial-in pretty quickly with 1 shot per adjustment. Once I get closer to center, I get back to the 3 shot groupings. On a fresh firearm, I get it "on paper" first and go from there. This is actually one of the funner aspects of shooting for me.
Geoff
Who just bought a Caldwell Lead Sled on sale at Academy, hey I'm lazy and I need to work 4 1/2 rifles. (2 AR uppers, but I'm thinking of adding a lower.)
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