Comments on: Dead Simple 4-Shot Sight-In for Hunting Rifles

By: Boyd Allen

Boyd Allen — Sun, 12 Sep 2010 14:24:09 +0000

I have used this method many times…but making quarter inch adjustments on an inch grouping rifle can be an issue. In these cases. I find that after the first adjustment, that gets you close, using the center of a three shot group for determining the next adjustment is probably more practical. Also, it sometimes takes a shot for the scope to move to where you have adjusted it. This is very common, and if you don’t take it into account, you will waste a lot of time and ammunition.

The slickest zeroing that I have done lately was that of an external mount setup (with no clicks, and perfect tracking), on a frozen 36X Leupold. I bore sighted my 6PPC, at 100 yards, fired a shot, dialed the poa to the poi and the second shot overlapped the first, by half its diameter.

By: Mike

Mike — Sun, 12 Sep 2010 00:34:18 +0000

Well, when I say POA=POI=Zero, I mean at that zero range. Josh if this is what you mean’t, then forgive my correction please..

By: Mike

Mike — Sun, 12 Sep 2010 00:30:31 +0000

You’re wrong Josh, the procedure works perfectly as stated, at any range.

When you make POA = POI you are zero’d.
Tragectory is accounted for automatically with it.

If your POA doesn’t equal POI, then you ain’t hitting anything you’re AIMING at!

By: Josh

Josh — Sat, 11 Sep 2010 17:01:48 +0000

fdshuster above makes an excellent point about starting at short range. For most rifles, the bullet trajectory first crosses the line of sight at around 40 yards. At longer ranges the method above will usually give a low shot. At longer ranges the crosshairs should be adjusted below the bore sight. For best future results, try this procedure with a rifle which is already sighted in, and make notes on the sight picture. Doing that, the procedure descibed here usually gets me within a couple of MOA on the first shot.

By: Kenny474

Kenny474 — Sat, 11 Sep 2010 07:01:02 +0000

If your rifle is only capable of holding 3+MOA, you had better just leave it in the safe. And if 3 MOA is average, I must have some exceptional rifles as all will group just a hair over MOA or under. And most well under.

And I don’t think this system is supposed to replace practice or testing of the rifles accuracy potential. But more to get on paper and centered rather quickly. I have actually done this with my 17HMR and it worked quite well, as I was centered on paper in 3 rounds and put the next 10 in under 1/2″ at 50 yds.

By: jthyttin

jthyttin — Mon, 03 Nov 2008 10:32:10 +0000

Average shooter, rifle and ammunition, which produces maybe 3+ MOA accuracy (group of ten or more shots), will lead to never-ending adjustment loop if zeroing is made by shooting just a shot or two.

Of course it’s advisable to get rough adjustments done by firing the least amount of shots. But confirming the actual zero should be done with a group of 10 shots or something… (if you really want to know what you’re capable of)

Otherwise you’re gonna fire next “group” of 2-3 shots next year, and blame your rifle for changed zero…

By: fdshuster

fdshuster — Sat, 01 Nov 2008 12:15:05 +0000

Good advice, but I begin my boresighting at 50 yards maximum. If the scope is first-time installed, and unless the target paper is the size of a “barn door”, you may not even be on the paper, especially at 200 yds.