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AR15.COM
1/6/2003 2:07:34 AM EDT
Last time I was at the range, my friend started chatting with a frontsight instructor.  The instructor was checking out my friend's Glock 19, complimenting it on its conceilability.  The instructor then said that he got his Glock 34 because of the increased wounding potential it had because of the higher velocity achieved by the longer barrel.

I know there are glock carbine conversion kits that claim to achieve 200 more f.p.s., but does the Glock 34's 1" longer barrel (compared to the 17) make that big of a difference?
1/6/2003 2:40:08 AM EDT
[#1]
Basically, if you use the right ammo, then no it doesn't make that much difference. Glocks are tough and eat +P loads like a child eats candy. For the G19 I love the Speer 124 gr +P Gold Dot loads, as well as the Winchester Ranger 127 gr +P+ loads. In fact, it seems that penetration and expansion are slightly better with these two loads from 4" barrels than 4.5" barrels! Now if you are using those underpowered 147 gr type loads, then a longer barrel might make more of a difference. Either of the above mentioned +P loads work wonderfully out of any of the Glocks though and would be my first choice.
1/15/2003 4:53:16 AM EDT
[#2]
No.

What the Glock 34 does give you is a longer sight radius, making accurate fire easier.
1/17/2003 3:21:46 AM EDT
[#3]
The magic number for the 124gr. Gold Dot seems to be 1150fps. That means you probably will have the best results using +P in barrels of 4" or less and the standard loading for longer barrels.