Don't know much about brands but definitly would go with the type you insert in the end of the barrel and has a piece that sticks up even with your scope. Those lasers are crap my cousin had to move a .450 marlin 74 clicks to the left and 52 clicks up just to sight the rifle in after having it laser boer-sighted.
The magnetic boresighter by Leupold is suppose to be excellent. I have never used a boresighter of any type because I have all bolt actions and can look through the bore with the bolt out and get my gun on paper that way. I then shoot at 50 yds to get close before moving to 100 and beyond. This will get you real close quickly if you are using a bolt action.
We all spend our time at the range, making sure our rifle is shooting just right. We get it dialed in, and then we head to the woods, ready to shoot our animal. Well, what happens if the animal comes out where you do not expect it? Will you be able to make the shot?
This scenario has happened to me. My first deer I ever shot, I had to shoot left handed. I had never practiced that way, and paid for it by having my nose broken with the scope. If I had just...