For what is worth. My wife has an XD40 and a friend of ours has an XD40 thats ported. Ive shot both side by side and the only difference I really noticed was that after a couple of rounds I could still see the dot on my wifes front sight. That bothered me because most shootings are at times of limited visibility and the loss of the front site is an issue for me.
Thanks all.
Nice cut and paste!There are a dozen aftermarket companies that
perform this modification. Does it actually work? Probably a little, but
equally probably, not enough to matter. It definitely does not work as
well as it does in the high gas pressure environments of rifle and
pistol. Stroboscopic photography seems to show that porting does indeed
slightly reduce muzzle jump when the gun is unrestrained. The heavier
the shell, the better it works. Whether the reduction in muzzle jump
will be noticeable to the shooter is another question, especially if the
shooter uses light loads.
Thanks all. Porting consideration is for a shotgun, Rem. 870 to be specific, and Ive never had any personal experience save for a higher end Beretta Sporting Clays gun. That was near recoilless, but im sure that wasnt just the porting.