as was said, this gets beat to death here----so i will only offer this---figur the recoil pulse in milliseconds, which is what is felt by the shooter----the pulse is almost flatlined by the time the wad reaches the ports.pop-a-cap said:but to say that ports do not reduce recoil is wrong.
Well, if you buy into that argument, then you must also believe that if the porting reduces the gas volume and pressure behind the shot charge, then it must also reduce the velocity of that charge. My belief is that porting of a barrel reduces BOTH the muzzle rise and the muzzle velocity, but both reductions are so insignificant as to be considered ZERO for all practical purposes.pop-a-cap said:First let me say I don't like ported shotguns, but to say that ports do not reduce recoil is wrong. Any time part of the ejecta to directed up(or down or etc) the amount of the rearward recoil is reduced. It may be insignificant, but there is some reduction because there is less ejecta going forward.
This statement is as incorrect as saying that it does reduce recoil! You need a better understanding of exactly is going on. Since a portion of the gases are bled off and redirected upward, if you carried the calculation to the nth degree, you would positively see some reduction in actual recoil. The calculation is based on the mass of ALL ejecta, including the gases. Will a shooter notice a differrence based on this? I rather doubt it, no more than he would notice a difference in recoil due to humidity causing the wood to weigh more (and it does, when carried to the nth degree).Chris Ferres said:According to Tom Roster, he clearly states that porting does not reduce recoil at all, period. He has been testing shotguns and loads for over 30 years, I'll trust his conclusions.
Not!copterdrvr said:The choke tube with the cuts all the way around works on the same principle as the muzzle brake by re-directing the gasses coming out the muzzle.
Ditto.Seamus O'Caiside said:Not!copterdrvr said:The choke tube with the cuts all the way around works on the same principle as the muzzle brake by re-directing the gasses coming out the muzzle.
Ported choke tubes are nothing like the muzzle brake on a .50 sniper rifle or a field artillery piece.