doublegunshop.com - home Forums General Discussion DoubleGun BBS @ doublegunshop.com Barrel Porting....does it work?

My Kolar SC is factory ported.
Looks fine.
Scientifically does not reduce Total Recoil.
Does reduce muzzle jump. My Kolar just sits in your hands and there is barely any visible muzzle jump as I watch my son shoot it (he REALLY like the gun). Watching other non-ported O/U's, I can readily see the difference.
I have no problems with wind or noise or whatever.
I would shoot the gun in question and form you own opinion.-Dick

In a state of possible dementia, I bought a Browning 10 bore pump gun with a very short barell, which was ported. Intent was to murder more snow geese than I could with a double....I shot it 3 times, and after recovering from bleeding at the eyes and ears from the muzzle blast, sold it to someone I really didnt like very much......

Boy, this'll divide a crowd down the middle.

I have a couple of trap doubles guns that are ported. The genesis of that was once having the opportunity to shoot two identical guns, one ported, one not, back to back. Not a shell in one gun and then a shell in the other. It was a couple of boxes through one and immediately a couple of boxes through the other. I was like, "Whoa!" It made quite a difference in perceived recoil and especially muzzle jump.

Having said that, if you shot the two guns on different days, I very much doubt it would ever occur to you that there was a difference.

Now that everyone is stirred up, should we talk about lock times?

The heavy barrels on my MX2000 skeet gun were ported and long forcing cones when I bought it. I am not a fan of porting but there is a difference.

The guy I bought the gun from walked straight to AnglePort at the World and dropped off a brand new gun. Would I have mine ported? Don't think so but it does help.

It DOES reduce total recoil, as explained by 2-Piper.

Recoil is produced by the mass and velocity of the total ejecta acting along the bore line in accord with Newton's third law.

When you vent off some gas sideways, you reduce recoil proportional to the mass vented.

This can be calculated, measured, and felt.

http://en.wikipedia.org/wiki/Muzzle_brake

I shoot two MX-8s in sporting competition. One was ported when I got it, and had been threaded for choke tubes, Briley S-1 series. The other is unported and has fixed .020" and .020" chokes. I shoot the latter 95% of the time. I shoot it better, even though when I switch to the other one I change buttstocks so that I'm shooting the same gunfit.

If it reduces muzzle flip on a MX-8, 32" barreled gun, it is so insignificant that I can't tell the difference. If I thought porting would gain me one target in a 200 bird event, just one, I would not hesitate to shoot the ported gun. I don't.

JMHO, Stan