Interesting new product
Basically, a 10-22 hellfire that works (and is a lot more expensive).
That a manually-turned trigger crank on a 10-22 is a legal device (except in the two states, and their law is probably overbroad)
That a motor-driven trigger crank is NOT legal, because one press of the motor control can cause the firing of more than one round.
That a recoiling stock that causes fire to be produced at 650 rounds per minute is OK because it take a single finger press to activate each recoil of the stock?
I need to see an animated video. Try as hard as I might, I can't operate a trigger more than a skosh over 3 rps, even on my High Standard target pistol with a under 3# trigger and almost zero trigger reset distance. To up that to almost 11 rps, especially considering the mass of the stock which must be recoiled, seems a little far-fetched. To claim 650 rounds per minute means that one would have to dump an entire 50 round Butler Creek clip out in under 5 seconds.
I doubt the physiology here. Maybe the mechanics of the recoiling stock and trigger-fanner are up to it, but the physiology of the average human could never get more than half that advertised rate, and only for a short time, never a full minute.
Twenty or twenty-five years ago, you could get a "paddle trigger" for the 10-22 that enabled you to use three or four fingers to fire the weapon. As I recall, that trigger assembly had a spring assist system that rapidly recycled the trigger to fire position, but even that system didn't claim these fantastic results.
Posted by: Rivrdog at August 18, 2006 03:17 PM
The system ate part of the middle paragraph of my comment. It should have read:
I need to see an animated video. Try as hard as I might, I can't operate a trigger more than a skosh over 3 rps, even on my High Standard target pistol with a trigger pressure of under 3# and a negligible trigger reset distance.
Posted by: Rivrdog at August 18, 2006 03:20 PM
Nothing mysterious about it at all. You see the beauty of the method is the trigger finger doesn't move, it stays still. It's the rifle that moves instead!
All that this new product does is isolate the movement of the rifle by placing the entire barreled action into a stock/housing that permits free movement of the action, sort of like the German G-11.
Even without this new product, many semi-automatic rifles can be hand fired so as to simulate full-automatic rates of fire. The easiest rifles to do this with are those with the right balance between recoil forces and the weight of the trigger pull. It turns out that a standard 7.62x39 caliber semi-auto AK clone is ideal for this trick. The cheap no-stage trigger of the AK actually aids this method.
This firing technique is called 'bumb-fire' by many people, but I prefer the term 'inertia-fire'.
The key to the technique is keeping your trigger-finger motionless relative to your body, while allowing the rifle to freely move a couple inches backward under recoil and then forward again towards the target. The backward motion of the rifle moves the trigger away from the trigger-finger allowing the trigger to reset. The rapid return of the rifle forward trips the trigger when it hits the trigger-finger, firing the next round and continuing the cycle.
So much for theory -- here's the practice. First carry the AK camera style. Adjust the sling to a long length. Put the sling behind your neck and drap the AK at waist level, the side of the AK flat against your body, with the barrel pointing to your left and parallel to the ground.
With the AK loaded, prepare to fire. Face sideways to the target, with your left side and the AK muzzle pointing towards the target. Use the sling to support the full weight of the AK and place your left hand on the top of the handguard (the forend which covers the gas tube). Grasp the handguard, point the muzzle towards the target and push the AK forward slightly until some sling tension is aquired. Your left arm will function as the 'spring' of inertia-fire, and you will use your left hand for aiming (really just pointing).
Now take your right hand and place your trigger-finger inside the trigger guard forward of the trigger. Do not touch the rifle with any part of your right arm or right hand! Try to lock your right arm, right hand and trigger-finger rigidly into fixed position. The only function of the right hand is to trip the trigger, the hand will not move and the trigger finger should not move at any point.
Now with your left hand apply forward pressure to the rifle until the AK move forward bringing the trigger into contact with the trigger-finger, keep the pressure up until the trigger trips and the rifle fires.
This is where things get exciting! Even with the forward and downward pressure the left hand is applying to the rifle against the tension of the sling, when the rifle fires it will recoil backwards slightly. If the trigger-finger is held rigidly in space, under recoil the trigger will move out of contact with the trigger-finger. But by applying constant forward pressure with the left hand, the left arm operating as if a spring, the rifle will slow it's recoil and snap back forward again. When the rifle snaps forward the trigger will trip again firing the next round and repeating the cycle. Firing at near cyclic rate continues until the forward pressure of the left hand is let off (or the rifle runs out of ammo!).
Hand held nearly full automatic fire is suprisingly controllable this way. Since the rifle is free to move the body is not pushed out of position by the recoiling rifle. Because of the rigid stance not a terribly practical method of shooting, but reasonably safe with proper precautions, and best of all tremendous fun!
Posted by: Brad at August 19, 2006 05:42 PM