Was at range today. My last shot in target didn't go. Bullet was stuck in forcing cone, far enuf into bbl so base of SWC hard-cast was about 3/16" forward of the rear end of bbl. Drove it out easily enuf with several taps on aluminum rod. Bullet base was as new. Bullet only showed land-marks, otherwise undamaged. Bevel base was not melted at all.
The H110 and the primer were both ten years old. Had many unburned powder grains in cylinder throat and a whole compressed unburned wad of it in bbl behind the bullet. I would guess either weak primer or "damp" (?) powder. Powder and primers have always been stored in 50-cal ammo box and in air-conditioned home, so is interesting. I don't think I've ever seen this type of failure in many, many yrs of reloading.
22 gr H110, 255 gr hard-cast, Fed cases, tight crimp with Redding Profile Crimper. No sign of bullet moving forward with recoil. Avg speed = 1152 fps. 65 fps max variation over ten rounds fired. (1119-1184 fps). So I'm left with a guess of weak primer or damp powder. Any other suggestions?
This is a real bummer as it leaves me unsure of my ammo.
Sonny
The H110 and the primer were both ten years old. Had many unburned powder grains in cylinder throat and a whole compressed unburned wad of it in bbl behind the bullet. I would guess either weak primer or "damp" (?) powder. Powder and primers have always been stored in 50-cal ammo box and in air-conditioned home, so is interesting. I don't think I've ever seen this type of failure in many, many yrs of reloading.
22 gr H110, 255 gr hard-cast, Fed cases, tight crimp with Redding Profile Crimper. No sign of bullet moving forward with recoil. Avg speed = 1152 fps. 65 fps max variation over ten rounds fired. (1119-1184 fps). So I'm left with a guess of weak primer or damp powder. Any other suggestions?
This is a real bummer as it leaves me unsure of my ammo.
Sonny