I am looking for a scope to sit on a 700p in .300 win mag. I am going to be shooting target/sillhoutte at ranges from 300-600 yards. Does anybody have any experience with this scope? I am looking at the 50mm one. It has plenty of magnification. I am just looking to hit targets, not get crazy small groups. Any input/advice would be greatly appreciated. If there is another scope that I should look at, let me know. Thanks.