squirreltail, the fed regs on bbl length are these, a shotgun may be no shorter than 18 inches, a rifle may be no shorter than 16 inches. Gents here is a true story A number of years back while on a bp deer hunt, I missed a nice buck with my 50 cal rifle, the buck took off troting a cross a open pasture. I pulled my 45 cal ruger old army from the holster fired 2 rounds missied. for some reason the deer stopped, I used a 2 handed hold held at the backbone and fired. at the shot the buck reared up on it hind legs and pawed the air. He fell and drug himsel mabey 10 yards using his front legs only, and stopped. I reloaded the rifle at went to the deer, 83 steps was the distance, I was shooting conical bullets, the shot had struck dead center lung area just behind the left foreleg. the shot went competely thru. When we cleaned it appeared the shot drove the ribs into the backbone and spine causing paralsis. While not the biggest rack by far I am probably more proud of that deer than any I have killed. Yes pistols can kill deer I just dont usually miss with my rifle so dont make a practice of pistol shooting deer. Oh well another TRUE story of the life and times of the old hounddog, chew on that bone