need to get recoil down on 835 moss b turkey blr who,es porting does best have installed a better recoil pad needs more help i,m in ohio thanks buc

In my experience, which admittedly is not current, porting on shotguns does VERY little to reduce recoil, it helps a bit with muzzle rise which makes for slightly faster shots.

If you are having trouble with recoil, the easiest and by far cheapest solution is to use lower shot wts and/or velocities.

gatogordo, all i use it for is a locall turkey shoot once ,as i i,am not as young as i think i,am i worie about eye damage from reciol , the shell load is a shoot provided trap load maybe i should make the gun heavyer,i.e load the stock amd such things?

Porting will reduce full load recoil but not target load recoil. Companies are making many reduced recoil loads check to see if they make one for turkey.A recoil reducer in the buttstock [or just some lead weights] will help also.

You can send your barrel to Mossberg and they will do porting very reasonably, and with quick turnaround. They will do the porting for $35.

http://www.mossberg.com/acatalog/facto_refin.htm

brendan, in my experience if you are experiencing a lot of recoil from a trap or target load, chances are the shot gun is not fitting you very well. Have someone you shoot with help you check the fit. second item is a good recoil pad, I like Kickeze a soft rubberlike material that will take a lot of sting out of the recoil. the last suggestion is a mercury tube suppressor system. this is a sealed steel tube half full of mercury, sizes are available to fit into the stock or magazine of your shotgun. try these suggestions before spending the money to have the gun ported.

I put a mecury recoil reducer in the stock, and I believe you can get different weights as well. Then you can shoot high quality shells. Sometimes the cheep one have "stiff" wads giving the perception of harder recoil. The kick-eze pad is a good idea, and with the Mossberg I think you can get weights for the magazine tube as well. My target guns are ported but I could not tell you what the "net" difference is because they have always been ported. For 35.00 it can't hurt.

Add weight to stock and change recoil pad to a limbsaver or Kick-Eze and this will help. Porting is a waste of $$ as it will only help reduce muzzle rise.

The physics of porting means that there is no real benefit with target loads but there is with full loads .Improper gun fit will accentuate recoil. Better recoil pad and weight will help.

mete, I am curious to find out how porting only works with full loads. Would not target loads benefit, only to a lesser degree?

If the powder is consumed entirely within the barrel ,while the charge is still in the barrel [as some target loads are designed to do] the ports do nothing since there is no 'jet' or 'rocket ' effect. This effect is due to gases being generated after the shot has left the barrel. The gun then becomes like a rocket with the force of the burning gases acting against the breech. This can involve as much as 25 % of the recoil forces in full loads. The ports bleed off these gases just before the shot leaves the barrel thus in full loads recoil can be reduced as much as 25%. So the amount of recoil reduction by the porting depends on how much powder burns after the shot leaves the barrel.We watched a shooter shoot a sporting clays round with two matching Brownings one ported ,the other unported. We saw no difference and he could see no difference. With target loads of course.The hotter the load the more porting does it's job !!

mete,
The gases escape as the wad clears the ports and there is a jet effect in every shotgun shell and every rifle cartridge when the projectile clears the muzzle or ports, not just the full loads. The pressures in the barrel in a full load and in a target load do not go to zero once the powder is burned, they go to zero after the gasses escape the end of the barrel.

The bottom line is the higher the pressure, the more the porting works with any recoil reduction but it does work on both high and low pressure loads. If you go to the Hogdon's site and take a look at the pressures with "full load" in one case, a 3" 1 5/8 oz load and a target load with a 7/8 oz load in a 2 3/4 inch shell you can find a higher pressure in the 7/8 oz load. That one will have a higher reduction with the ports but the ports are only there to decrease muzzle lift and most often for a followup shot in doubles (skeet, trap or sporting clays). Porting only reduces the recoil that is attributed to the gases and they do nothing for the recoil that is the result of the equal and opposite reaction to the weight of the projectile etc going down the barrel and that is the majority of the vast recoil you feel.

Muzzle breaks on rifles are basically the same as porting with the excpetion that breaks generally disperse the gases 360 degrees where most shotguns diserperse it in the vertical or near vertical zone and the rifle pressures are about 5 times the shotgun pressures.