Well, since Dad owns a laser boresighter, I use his...
on the lever guns, yes, I can (and have) removed the bolt assemblies...
but wuth the SKS, M1, M1A, Mini-14, 10-22, Nylon 66's, Remington 870, Dan Wesson revolvers, and MANY others, it is not POSSIBLE to see down the bore, as there is no through opening to be used... in ANY form...
I was just trying to point out that the "look down the bore" doesn't work work very well with quite a few model guns...
I have access to a laser AND a regular boresighter... and both work well... and since a laser boresighter can be had for under 70 bucks now, it is a great tool for ANYONE seriously into rifles... (unless you are only gonna have 1 or 2 long guns, OR only collect Mausers or something like that...)
I wasn't really trying to flame anyone... I was just trying to point out some basic facts...
Like I said originally, I use the "look through the bore" method when I can... it's quicker than bothering with a boresighter, and works just as well... (when you can see through the bore)