Review on 🔴 Ade Advanced Optics Bore Sighter for .223 5.56x45mm Rem Cartridge with Red Laser by John Caldwell

5 stars for the price and it works. I didn't expect it to compete with a $100 scope. Exactly 100 meters? Probably no. It dangles a little in the chamber so may cost 2 or 3 MOA, but on paper it will give your optics or scope a good start. I haven't been on range yet, but this has allowed me to play around with parallax and different ranges, so I think I'll set my scope at 40 yards for the scope and see if the trajectory gets close to 200 zero with the optics.