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Looking for information on "sensitive primers"
Wild Turkey
Member Posts: 2,427 ✭✭✭✭
(moved from "Gun Rights" on suggestion of reader)
I've read about BATF using sensitive primers to show some semi-autos will fire "full auto" and would like to reply to a guy on another forum.
IIRC there were two types -- a very sensitive primer that would fire from shock when the bolt went home and a "protruding" primer that would get hit by the bolt face and fire.
Either case (aren't they what the military calls "slam fires"?) would cause the firearm to fire without trigger being pulled, thus "full auto"?
Anybody else remember anything about this?
Wild Turkey"if your only tool is a hammer, you tend to see every problem as a nail"
I've read about BATF using sensitive primers to show some semi-autos will fire "full auto" and would like to reply to a guy on another forum.
IIRC there were two types -- a very sensitive primer that would fire from shock when the bolt went home and a "protruding" primer that would get hit by the bolt face and fire.
Either case (aren't they what the military calls "slam fires"?) would cause the firearm to fire without trigger being pulled, thus "full auto"?
Anybody else remember anything about this?
Wild Turkey"if your only tool is a hammer, you tend to see every problem as a nail"
Comments
I ONCE LOADED SOME .223 AMMO WITH FEDERAL PRIMERS THAT WERE MARKED "SMALL RIFLE/HIGH VELOCITY PISTOL". THESE ROUNDS WOULD OCCASIONALLY "DOUBLE" AND SOMETIMES "TRIPLE" IN A COLT H-BAR. CAME TO FIND OUT IT WAS THE FLOATING FIRING PIN ON THE COLT STRIKING THE TOO-SOFT PRIMER WHEN THE BOLT CLOSED. ONLY HAPPENED WITH THOSE PRIMERS, THOUGH.
Be careful you could be biting off more than you can chew, in 10 years of ClubFed.
Walte
One method is to shave metal from the sear so that it doesn't contact the stop.
In the Waco hearings, one "expert" testified that he was able to make a certain model of firearm fire "full auto" by simply adding plenty of oil to the action.
If primers were truly hard or soft; where are all the millions of injuries caused by a gun that went off all by itself?
Protruding primers don't have to be "soft" to go off when the bolt is slammed home.
The American Rifleman had an article about the misconception of soft primers awhile back; lemme see if I can find it.
"Qui non est hodie cras minus aptus erit" --OVID