I'm kinda new here. Been casting, shooting and reloading for a while. My son and I have experienced some success in another shooting discipline, but are new to Glocks. Shot Griffin in Feb. and Conyers this weekend. Have been shooting a 115gr plated bullet and Unique. Someone please explain the use of heavy bullets and their benefits. Recoil? Muzzle rise? Accuracy? Reliability? I'm having a hard time understanding why heavy bullets are beneficial. And who has a deal on "-" connectors?