bore sighter question

[sswv]

I've always used the laser bore sighter that fits in the muzzle end BUT, I'm thinking about one that goes in the chamber. anyone have real world experience with the chamber style?

thanks in advance

[bigwoodstom]

We bore sight hundreds per year and have always found the collimator style sighter the most effective. Just my .02

[btodd00]

I have a cheap Amazon one I use to check zero on 410's with red dots. Works perfect and was only $13 a couple years ago

It will not turn off without taking batteries out but for no more than I need it that wasn't a big deal to me