I have been shooting 9mm 115 grain Fiocchi or Sellier & Bellot ammo for the last year. I recently looked at the specs for the ammo and noticed that the muzzle velocity is 1200 fps for Fiocchi and 1280 fps for S&B. These velocities are higher than some manufacturers' +P rated ammo.
I had a Tristar T-120 (an aluminum frame model) develop a frame crack at 13,000 rounds (about 6,000 rounds were the Fiocchi and S&B) in May. Now I'm wondering if the high velocity ammo was the cause of the frame crack. The recoil spring was a Tristar supplied #14 spring that had about 5,000 rounds on it but was functioning fine.
I have other aluminum frame Tristars that I don't want to damage not to mention polymer frame guns. Are steel frame guns with standard recoil springs safe from damage with this ammo?
What is INGO's mindset on this?
Is it ok to shoot this ammo but change #14 recoil springs at 2,000 rounds. Shoot the ammo but change to #16 springs. Change ammo to something in the 1150 fps range.
I had a Tristar T-120 (an aluminum frame model) develop a frame crack at 13,000 rounds (about 6,000 rounds were the Fiocchi and S&B) in May. Now I'm wondering if the high velocity ammo was the cause of the frame crack. The recoil spring was a Tristar supplied #14 spring that had about 5,000 rounds on it but was functioning fine.
I have other aluminum frame Tristars that I don't want to damage not to mention polymer frame guns. Are steel frame guns with standard recoil springs safe from damage with this ammo?
What is INGO's mindset on this?
Is it ok to shoot this ammo but change #14 recoil springs at 2,000 rounds. Shoot the ammo but change to #16 springs. Change ammo to something in the 1150 fps range.