Looking for information on products to help with angle shooting, I know of several products out there and the prices vary. Keep in mind this will mostly be utilized in an urban environment (SWAT sniper), it will be used on a Rem. .308. I have some experience with angle shooting and I'm looking to improve the accuracy of angle measurements. Looking at something that would attach to the weapon system itself and not simply using a protractor. I'm sure there are a few in here that have experience with several different products.