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BobbyJ · July 21, 2018, 08:10 PM

Yea that makes sense, some great explanations on the overcharged loads.

Its pretty amazing how intense each shot is. 65,000 psi! crazy.

My buddy bought a new Bmag .17 cal rimfire. They develop psi of like 33,000 psi. He got a hot load from the factory and it blew up. Well what happened is the edge of the casing blew out. The guns bolt only covers 1/2 of the rim and bottom half of the rim is fully exposed. It was engineered to fail that way in case of a hot load.

So most of the pressure blew down towards the magazine. It blew off the mag, the trigger, the trigger guard and his hand. He did not loose any digits but he said he was afraid to look as it felt like it had been hit with a hammer.

That was a safe explosion, I can imagine ones where there is no exit valve the entire chamber must blow like an M-80.

July 21, 2018, 08:10 PM	#29
BobbyJ Junior Member Join Date: July 17, 2018 Posts: 8	Yea that makes sense, some great explanations on the overcharged loads. Its pretty amazing how intense each shot is. 65,000 psi! crazy. My buddy bought a new Bmag .17 cal rimfire. They develop psi of like 33,000 psi. He got a hot load from the factory and it blew up. Well what happened is the edge of the casing blew out. The guns bolt only covers 1/2 of the rim and bottom half of the rim is fully exposed. It was engineered to fail that way in case of a hot load. So most of the pressure blew down towards the magazine. It blew off the mag, the trigger, the trigger guard and his hand. He did not loose any digits but he said he was afraid to look as it felt like it had been hit with a hammer. That was a safe explosion, I can imagine ones where there is no exit valve the entire chamber must blow like an M-80.