Rufus Pisanus
Member
MrBorland said:
The movie is perhaps a good indication but I wonder whether it's really significant: the bullet is much lighter than the gun (or the slide) so by conserving momentum the gun (or slide) is going to move at a much lower speed and this might trick the eye in a movie. The gas in the barrel will complicate things but I don't think is going to change the picture. In any case try to shoot a SW 629 (44 magnum) with a soft grip and a solid one. In the first case the muzzle climb will be enormous and you'll see it's effect on the accuracy and point of impact. This tells me that the muzzle is actually raising while the bullet is still in the barrel.
In my opinion, the rifle case is very different in many respects, for instance the primary support (shoulder) is better aligned with the barrel than the grip of a pistol and this should guarantee a comparatively lower torque which will reduce muzzle climb and contribute to accuracy. Of course the overall stability of a rifle shooting position and the speed and spin of the bullet (and hence barrel rifling) matter as well.
As far as the "mass in motion while the bullet is accelerating" argument, I've heard this before, and I'm skeptical. I used to think this was true as well, but then I saw a high-speed movie of a pistol being fired, and it was clear (from this movie, anyway), that the bullet clears the barrel long before the slide even begins to move. If this weren't true, semi-auto rifles, such as an AR15, would be more inherently inaccurate than pistols.
The movie is perhaps a good indication but I wonder whether it's really significant: the bullet is much lighter than the gun (or the slide) so by conserving momentum the gun (or slide) is going to move at a much lower speed and this might trick the eye in a movie. The gas in the barrel will complicate things but I don't think is going to change the picture. In any case try to shoot a SW 629 (44 magnum) with a soft grip and a solid one. In the first case the muzzle climb will be enormous and you'll see it's effect on the accuracy and point of impact. This tells me that the muzzle is actually raising while the bullet is still in the barrel.
In my opinion, the rifle case is very different in many respects, for instance the primary support (shoulder) is better aligned with the barrel than the grip of a pistol and this should guarantee a comparatively lower torque which will reduce muzzle climb and contribute to accuracy. Of course the overall stability of a rifle shooting position and the speed and spin of the bullet (and hence barrel rifling) matter as well.