casingpoint
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- Jun 29, 2006
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Yes, there is. By most accounts, about a 10-15 per cent drop in velocity. Not much up front, but when squared for KE, it makes a notable difference on paper. This, and the magnum round ejection issue favor the three inch barrel.I can't imagine there's a significant difference in velocity with 1/2" of barrel
Shooting 38's in a 357 chamber also has a ballistic loss associated with it, although someone opined the other day that has been reduced by improved cylinder design. Sounds a little hoaky to me. I have been unable to gather reliable figures on the prospective velocity drop, new cylinders or old. This drop has been rated at between 10 fps and 50 fps. Maybe somebody here has the facts.