Gunmeister
Member
Why do semi-auto manufacturers include the chamber length when determining their pistols barrel length? Case in point is my Kahr MK9 with an advertised barrel length of 3.0" but the actual rifled barrel is only approximately 2.0". A S&W Model 337 revolver I once owned had an advertised barrel length of 1.9" which is exactly how long the rifled portion of the barrel was.
Because barrel length can determine velocity and energy, shouldn't semi-auto pistol makers be obliged to advertise the actual rifled barrel length?
I realize that some "pressure" is lost at the gap between a revolver's cylinder and barrel but isn't that about equal to the amount of "pressure" lost when the semi-auto slide is racked back at the moment of firing? Both of these actions must have some effect on the guns velocity/energy especially in a short barreled piece, albeit very slight I agree.
When you get to be a retired old curmudgeon and have too much time on your hands you get to think about things like this and I know that some of you guys out there will come up with an answer.
Because barrel length can determine velocity and energy, shouldn't semi-auto pistol makers be obliged to advertise the actual rifled barrel length?
I realize that some "pressure" is lost at the gap between a revolver's cylinder and barrel but isn't that about equal to the amount of "pressure" lost when the semi-auto slide is racked back at the moment of firing? Both of these actions must have some effect on the guns velocity/energy especially in a short barreled piece, albeit very slight I agree.
When you get to be a retired old curmudgeon and have too much time on your hands you get to think about things like this and I know that some of you guys out there will come up with an answer.