Dieseler 0 Posted October 31, 2008 Report Share Posted October 31, 2008 Ok, so 18" is the min legal unless going SBS. But what is the best barrel length before velocity starts dropping? I imagine it's load dependant, but I'm curious. Dieseler Quote Link to post Share on other sites
bigj480 203 Posted October 31, 2008 Report Share Posted October 31, 2008 This was posted by Jason Hinkle over on Subguns. Jason got me into the Saiga market back in 2004 and owns the very first prototype 12" Tromix SBS. He's a pretty colorful guy....... Hinkle writes...... OK so I finally took most of the shotguns out for a spin on the old Chronograph. What I found is that, basically, those of you chuckleheads with no empirical data who have been yapping your cockholsters about how short barrels on shotguns seriously affect ballistics are fucking wrong. Lots of wrong. Like I said long ago, shotgun powder IS pistol powder- it burns fast and quick, and barrel length doesn't fucking matter that much. I can't .PDF a spreadsheet on this computer so I'll get really slow and dumb like those who talk out their ass about ballistics with no basis in reality and list the average FPS for the shot strings. First, using shitass birdshot- 12 gauge, 2 3/4 inches, 1 oz shot 12" barrel average FPS- 1040 14" barrel average FPS- 1069 18" barrel average FPS- 1114 19.5" barrel average FPS- 1114 20" barrel average FPS- 1108 28" barrel average FPS- 1159 Then using Remington 00 Buck- 12" barrel average FPS- 1121 14" barrel average FPS- 1127 18" barrel average FPS- 1216 19.5" barrel average FPS- 1205 20" barrel average FPS- 1182 28" barrel average FPS- 1250 Wow- 119-129 FPS velocity loss in 16 inches of barrel. That's devastating. Oh wait- no, it's actually not, it's fucking nothing at all and is actually about the same velocity variation in factory loaded ammo. I will feel as comfortable fucking up a bear using a shotgun with a 12 inch barrel as I would using one with a 28 inch barrel. Those of you clammering over 20 gauge Serbu Super Shortys rather than the biting sting of a 12 gauge to dust up a gravel pit should stick with the shortest of shotshells. I wouldn't want you to drop your purse while shooting. http://forum.saiga-12.com/index.php?showtopic=19103 Not a huge difference. Quote Link to post Share on other sites
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