Bore Sight

[skb2706]

Originally Posted By: BOWLSEYEI see no reason to buy all the gadgets when you can look down the barrel and bore sight your scope. If your worried about mechanical center then by adjustable rings like the Burris Signature Zee's or what ever brand or method you like. Center you scope's windage and elevation, bore sight it, find your point of impact then use the mounting system to zero. You must make sure your crosshairs are level too.

If you have your scope mounted and leveled and your going to sight it in using the elevation and windage knobs. Get a piece of paper or something you can put target dot on and hang it up 30 to 50 yards out. Have your rifle unloaded and mounted so it won't move looked down through the barrel from the breech end and center the dot in the barrel by adjusting the rifle on its mounting rest, turn the scope knobs until the cross hairs line up with the dot and make sure the dot is still centered in the bore, then test shoot at 50 yards and zero in. Then move to 100 or how ever far you want to zero.

+1 this works

 

[cdb]

All Bore Sighting is supposed to do is get you on paper at 25 yards. The older way of taking out the bolt and sighting down the barrel works great. But sometimes taking the bolt out is not feasible, not a problem for me on a Marlin lever but a pain on a Winchester and a Ruger 10/22 etc. For that reason and because I sometimes mount and bore site 20 scopes a day I use bore sighters. These are the three I use:

http://www.cabelas.com/product/cabela-s-laser-boresighter/1172354.uts?Ntk=AllProducts&searchPath=%2Fcatalog%2Fsearch.cmd%3Fform_state%3DsearchForm%26N%3D0%26fsch%3Dtrue%26Ntk%3DAllProducts%26Ntt%3Dbore%252Bsight%26x%3D10%26y%3D6%26WTz_l%3DHeader%253BSearch-All%252BProducts&Ntt=bore+sight

http://www.cabelas.com/product/cabela-s-boresighter-package/1308530.uts?Ntk=AllProducts&searchPath=%2Fcatalog%2Fsearch.cmd%3Fform_state%3DsearchForm%26N%3D0%26fsch%3Dtrue%26Ntk%3DAllProducts%26Ntt%3Dbore%252Bsight%26x%3D10%26y%3D6%26WTz_l%3DHeader%253BSearch-All%252BProducts&Ntt=bore+sight

http://www.btibrands.com/product/professional-laser-bore-sighter-green/?mobile=true

No boresighter is exact but the ones I use get you within 6 inches of the bullseye at 25 yards. What more do you need?
And yes I work at Cabela's and mount scopes for them. I do have the same set up for my own mounting kit because I mount a lot of scopes at home too.

 

[OldTurtle]

I have a couple different styles of bore sighters and as indicated, they are good for getting you on paper at 25 0r 50 yards, depending on the brand/style...ARs are a little different due to the excessive line of sight above the bore line, but even with them (upper removed from lower).

I've found sighting down the bore at an object roughly 100 yards away is even a little more precise...One of my neighbors used to have a basketball goal backboard that was almost exactly 100 yards and the square above the rim was perfect...