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Re: Making a cartridge safe
Posted: Sat Apr 01, 2017 2:41 pm
by Mattnall
Dark Skies wrote:snayperskaya wrote:Mattnall wrote:Primers in a bonfire (outside, of course, not in the living room) aren't a problem, they pop and crack but don't jump out.
Batteries are a lot worse in an open fire.
Many years ago whilst camping with some mates someone threw a live 8mm blank on the fire......the primer blew out, shot about 5ft and lodged in the back of someones hand!.
Well that's because the ignition components were in an enclosed space and the primer followed the path of least resistance under pressure. A primer in a case with no round in will usually just go pop in a fire. Every now and then an odd lost primer on the garage floor ends up on the bonfire amongst the sweepings and nothing untoward has happened.
Yep, don't give it anything to push against and it is just a loud pop. Hold it, for instance, in a case and the case in a pair of pliers or a vice and it will shoot off at some speed.
Many years ago I had a .22lr go off after the cartridge was ejected. The case went out the range, through the safety room and out the door into the waiting area (all doors were open), the bullet didn't make it 6 feet.
Re: Making a cartridge safe
Posted: Sat Apr 01, 2017 3:43 pm
by snayperskaya
Dark Skies wrote:snayperskaya wrote:Mattnall wrote:Primers in a bonfire (outside, of course, not in the living room) aren't a problem, they pop and crack but don't jump out.
Batteries are a lot worse in an open fire.
Many years ago whilst camping with some mates someone threw a live 8mm blank on the fire......the primer blew out, shot about 5ft and lodged in the back of someones hand!.
Well that's because the ignition components were in an enclosed space and the primer followed the path of least resistance under pressure. A primer in a case with no round in will usually just go pop in a fire. Every now and then an odd lost primer on the garage floor ends up on the bonfire amongst the sweepings and nothing untoward has happened.
The blank was one of those Fiocchi ones where the powder is covered by a thin plastic layer and I can only assume that the plastic would have melted in the heat of the fire before the primer went off as it was probably a minute or so before it went off which would mean the pressure in the case wouldn't be that great.
Re: Making a cartridge safe
Posted: Sat Apr 01, 2017 4:14 pm
by Mezzer
Alpha1 wrote:I have all ways used the Lee universal depriming die with out any issues. Having said that its not some thing I do very often. and of course I all ways wear safety glasses.
Exactly what I do. Nice and gentle is the way to go.
Mezzer
Re: Making a cartridge safe
Posted: Sat Apr 01, 2017 4:31 pm
by bradaz11
snayperskaya wrote:Dark Skies wrote:snayperskaya wrote:
Many years ago whilst camping with some mates someone threw a live 8mm blank on the fire......the primer blew out, shot about 5ft and lodged in the back of someones hand!.
Well that's because the ignition components were in an enclosed space and the primer followed the path of least resistance under pressure. A primer in a case with no round in will usually just go pop in a fire. Every now and then an odd lost primer on the garage floor ends up on the bonfire amongst the sweepings and nothing untoward has happened.
The blank was one of those Fiocchi ones where the powder is covered by a thin plastic layer and I can only assume that the plastic would have melted in the heat of the fire before the primer went off as it was probably a minute or so before it went off which would mean the pressure in the case wouldn't be that great.
If it fired the primer out the back. It sounds like the plastic was intact and the path of least resistance for the pressure was blowing the primer out