I'm worried because one of my reloads broke my Taurus 709. The details are: Loading 9MM with 5.3gr Unique, CCI and Federal primers, mixed brass, Rem JHP, Ranier, and Precision Delta bullets. All bullets 115gr. OAL at 1.14. New to reloading, I thought this would be a safe load. What I didn't know then but understand now is that different bullets of the same weight can make a difference in pressure. But still I don't think I'm that far out with this load to make a significant difference among these three bullets at the length I'm loading. (May be some argument here) Since the Taurus was new, I first fired 100 rounds of standard American Eagle target ammo - 115gr. I did this in two 50 round sessions followed by a through cleaning and re-oil. Then I loaded a clip of my Precision Delta reloads and within a few rounds the gun would misfire and fail to cycle. The misfires were soft strikes on the primer. I loaded these in my Beretta and they fired no problem. I tore the gun down and found the recoil spring broken. This load (with all three bullets) has been working fine in my Beretta 92FS (5 inch barrel) and my XD Subcompact (3 inch barrel). And I can't feel any difference in the recoil. So now I'm worried that my loads are too hot and its only a matter of time before I destroy or ruin my other guns, not to mention personal injury. What do you all out there say? Am I loading too hot or did I experience a random or infant mortality failure in the Taurus? By the way, the Taurus is a three inch barrel. Need some help here. I don't want blow myself up or even worse, the guy standing next to me at the range.