Thanks for that post. If they are leaving muzzle at same velocity than there's really no difference. I've been shooting regular Gold Dot's for a while since I've been unable to locate the Short Barrel. At least they were at the same price so I wasn't getting ripped off.the GDSB's are little more than marketing hype.
The regular GD's have a slower powder that in 3" guns tends to leave some unburnt and creates a nice cloud of smoke.
The GSDB's use less powder and a slightly faster one from what I understand, this reduces the smoke-cloud signature and leaves the illusion of a more efficient round.
A friend and I tested velocities in a 3" gun and they are nearly identical - waste of time unless you're really bothered by the muzzle flash or powder report of your existing GDs.
I read a 9mm ammo review somewhere, and i said that the diff in gunpowder between the regular GD vs. GDSB makes a difference in performance on the short barrel 9mm vs the long barrel 9mm. I dont think the price is much different (maybe about the same $$). You are just getting the round that fits your weapon better.As far as I can tell the only SB load that has a different bullet is the 180g 40 cal. It has a different part number and larger HP cavity. But it is hard to tell for sure because Speer has made some changes that I haven't kept up with.