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Mello2u · January 11, 2011, 06:52 PM

http://www.ballisticsbytheinch.com/
The above website might have some info for you.

Every barrel is unique. You can only generalize about external ballistics when thinking about barrel length. You posts begs the question of what is "reliable" information. Unless you actually chronograph your particular handgun with a particular load, you will never know.

The various factors of a barrel other than length which may effect bullet velocity (that I can think of off the top of my head) are: bore smoothness, uniformity of diameter of the bore, depth of rifling, type of rifling, barrel to cylinder gap (if any), free bore (if any), and twist rate of rifling.

In general I would consider the 2" barrel ballistics and be happy if you actually got any real increase. In a short barreled handgun a few % increase or decrease in velocity is not all that important.

January 11, 2011, 06:52 PM	#2
Mello2u Senior Member Join Date: February 21, 2009 Location: Georgia Posts: 1,424	http://www.ballisticsbytheinch.com/ The above website might have some info for you. Every barrel is unique. You can only generalize about external ballistics when thinking about barrel length. You posts begs the question of what is "reliable" information. Unless you actually chronograph your particular handgun with a particular load, you will never know. The various factors of a barrel other than length which may effect bullet velocity (that I can think of off the top of my head) are: bore smoothness, uniformity of diameter of the bore, depth of rifling, type of rifling, barrel to cylinder gap (if any), free bore (if any), and twist rate of rifling. In general I would consider the 2" barrel ballistics and be happy if you actually got any real increase. In a short barreled handgun a few % increase or decrease in velocity is not all that important. __________________ NRA Life Member - Orange Gunsite Member - NRA Certified Pistol Instructor "When plunder becomes a way of life for a group of men living together in society, they create for themselves in the course of time a legal system that authorizes it and a moral code that justifies it." Frederic Bastiat