The TulAmmo KVB-seven.sixty two primer is NATO spec and less expensive than most and creates the lowest velocity SD's I have found. The only real complex disadvantage is they are a rather limited suit, so you need to be more careful to have them underneath flush with the situation head. https://zndhtchenlargerifle57890.blogolize.com/the-best-side-of-federal-100-70741212