It is the reaction force of the gas exiting the holes - definitely.
When I shot my ported barrel, I used blazer Blazer 180 gr .40 cal. FMJ and I kept having feeding issues. The round that should have gotten loaded next was nosed down in the mag. It felt as if the slide wasn’t fully cycling (going all the way back). I believe the rounds were weak and under powered. So I decided to run about ten Hornady critical defense 165 gr. FTX rounds and my Glock 23 (gen3) cycled with out any issues.I only, vaguely, recall running a ported barrel on a handgun once. I don't recall the recoil mitigation, but it turned a Glock into a complete jam-o-matic, so it was dumped. I have Pro-ported (Mag-na-port's shotgun service) and have been, generally, pleased. One of those two guns is long gone, but on the one we kept, it is noticeable, at least with respect to muzzle rise.
Pistol comps appear to be simply the evolution of ported barrels. If ported barrels work, pistol comps have to work as well. How necessary they are would depend on a lot of factors.I was reading about the new SIG P320 Spectre comp pistol, 9mm... the claim is the compensator reduces recoil by 30%.
I dont believe it.
Comps are nothing new but my observation they are born out of the custom race gun scene where any small reduction of recoil is appreciated. But on a practical self defense gun? 30% seems like a lot of difference is this possible, let alone needed for 9mm?
New Hampshire's Sig Sauer installed another branch in its massive P320 family tree, giving the popular modular pistol the Spectre Comp treatment.www.guns.com
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