Need Bore Sighter Recommendation

[messiah]

I have a few rifles that I would like to bore sight before going to the range. Calibers 5.56--7.62x39--7.62NATO. Is there one kit available with different size sighters that will work in each rifle chamber? I would think a bore sighter that fits in the chambers of the rifles would be more efficient.
Thanks for the help.

[Omega13device]

For my ARs I remove the upper, lay it on something flat (or put it in a shooter's vise) and look through the barrel at the target. Then adjust the sights/optic. Same goes for bolt guns. For other rifles you may have to spring for a laser bore sighter. I wish I had a recommendation but I've never used one.

[CSTactical]

I have been using the one form Leupold and it has work very well.

Mike @ CST