MC Posted March 21, 2011 Report Share Posted March 21, 2011 Perhaps the whole thing is a fake But I still think it is quite possible to do. The slide and spring of the pistol will absorb the bulk of the energy, the remaining force would not be enough to cause a clamped gun to move. Powder and bullet manufactures test their products with small and large calibers clamped or a test rig with just a barrel and it doesn't move. The bullet proof glass/plastic is a load of tosh. Why would it need to be bullet proof if you aren't going to shoot it? All it has to do is hold a momentary bit of pressure. Quite easily done with most plastics. I have seen cool drink bottles with a small hole cut in the bottom gaffer tapped on a barrel to quieten down a gun and they stay intact. This is just IMHO, and I am now bowing out. Any one who feels like a myth buster can do the experiment. I would be keen to see their results. Actually yes it does move, it has to. The recoil will not stop just because the barrel is clamped down. The movement has to go somewhere. Every test rig I have ever used or seen has a way of damping the recoil but still allowing the barrel to act in a normal way. Quote Link to comment Share on other sites More sharing options...
bignoel Posted March 21, 2011 Report Share Posted March 21, 2011 does it realy matter if it recoiled or not .it shows you what goes on inside a moderator and god knows how many times it has been slowed down to show the bullet exiting Quote Link to comment Share on other sites More sharing options...
George1990 Posted March 21, 2011 Report Share Posted March 21, 2011 Actually yes it does move, it has to. The recoil will not stop just because the barrel is clamped down. The movement has to go somewhere. Every test rig I have ever used or seen has a way of damping the recoil but still allowing the barrel to act in a normal way. The only reason a gun recoils the way it does is because the barrel is above where you are holding it, allowing it to pivot. If the barrel is clamped solidly is won't recoil. Simple as that. The energy used in recoil under normal circumstances will in this instance be expelled through the barrel to propel the bullet. The rig you used are design to replicate use in the field no doubt. Quote Link to comment Share on other sites More sharing options...
ajb403 Posted March 21, 2011 Report Share Posted March 21, 2011 Actually yes it does move, it has to. The recoil will not stop just because the barrel is clamped down. The movement has to go somewhere. Every test rig I have ever used or seen has a way of damping the recoil but still allowing the barrel to act in a normal way. It's not technically a 'movement' that needs to be accounted for, it's a force. If the force of the recoil is large enough to overcome the inertia of whatever is restraining the barrel then the set up will move, if the force isn't large enough to overcome the inertia of the rig then it won't move. Strap a rifle to a roller skate on a smooth surface, pull the trigger and it'll go backwards a long way. Strap the same rifle to a 5 tonne block of concrete and pull the trigger and it won't move, bits of the rifle and the concrete restraining block will get compressed (either permanently or temporarily depending on the amount of force applied) but the rig won't move backwards. The same force has been applied to both objects (the roller skate and the concrete block) but the results are very different, one will move, one won't. I'll stop being a pedant now. Cheers Ashley Quote Link to comment Share on other sites More sharing options...
Billy. Posted March 21, 2011 Author Report Share Posted March 21, 2011 A clamped rifle or gun doesn't have to recoil. Just because the 3rd law says equal and opposite reaction, it doesn't mean that 100% of the forward energy is turned into 100% of the reverse kinetic energy. Quote Link to comment Share on other sites More sharing options...
MC Posted March 21, 2011 Report Share Posted March 21, 2011 Actually the rifle will still move, even if you strap it to a 5 tonne concrete block. All test rigs allow the rifle to move otherwise they give false readings and are no use as a test rig. You really should go back to school and retake your physics exams, as you haven't learnt a damn thing Quote Link to comment Share on other sites More sharing options...
al4x Posted March 21, 2011 Report Share Posted March 21, 2011 (edited) . Edited March 21, 2011 by al4x Quote Link to comment Share on other sites More sharing options...
Billy. Posted March 21, 2011 Author Report Share Posted March 21, 2011 All test rigs allow the rifle to move otherwise they give false readings and are no use as a test rig. They're trying to film a sound moderator. I doubt they're bothered about where the bullet is going. If you look at their other videos, their rigs allow the gun to recoil, when testing accuracy of ammunition. Quote Link to comment Share on other sites More sharing options...
ajb403 Posted March 21, 2011 Report Share Posted March 21, 2011 Actually the rifle will still move, even if you strap it to a 5 tonne concrete block. All test rigs allow the rifle to move otherwise they give false readings and are no use as a test rig. You really should go back to school and retake your physics exams, as you haven't learnt a damn thing There's a difference between using a test rig that allows recoil and simply bolting a rifle to a massive block, nobody has said anything about accurate readings. You claimed the video to be a fake because the rifle didn't perceivably move, I stated it wouldn't have to if attached to a suitably heavy object. Neither you nor I know whether they used a proper test rig that would allow the rifle to move or not. For all we know the camera could have been strapped to the rifle too allowing it to recoil with the rifle and hence show no movement... Cheers Ashley Quote Link to comment Share on other sites More sharing options...
ayrshiretaxidermy Posted March 21, 2011 Report Share Posted March 21, 2011 Open the video in youtube and look at the line of mod from the front to the muzzle. Its running upwards, and looks like its not in line with the gun barrel. Looks like bullet should come out the gun and exit slightly higher than it does. Does that make sense lol. Quote Link to comment Share on other sites More sharing options...
George1990 Posted March 22, 2011 Report Share Posted March 22, 2011 Actually the rifle will still move, even if you strap it to a 5 tonne concrete block. All test rigs allow the rifle to move otherwise they give false readings and are no use as a test rig. You really should go back to school and retake your physics exams, as you haven't learnt a damn thing Haha. No it won't. And this is why this wasn't a test rig. Surprisingly they didn't want it to move, nor were they trying to hit a target. Quote Link to comment Share on other sites More sharing options...
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