Blocking barrel ports

If it kicks that hard with the ports?

It will kick harder without the ports.

The ports are there to supposedly reduce recoil somewhat.

But a pipe clamp on the muzzle?

Well, it would add weight in the right place to help hold the muzzle down!

rc

I don't think that is what's happening.
Recoil automatically seats the recoil pad in your shoulder, and due to the drop in the stock, the gun rotates upward from where it is placed in your shoulder pocket.

I have never fired a gun that defies the laws of motion like you describe.

How about a lace-on cheek pad?
http://www.cabelas.com/product/Triple-K-Leather-Cheek-Pad/706669.uts

http://www.blackhawk.com/product/Rifle-Cheek-Pad,605,662.htm

rc

Yes you can block the ports, some muzzle brakes even have a built in piece allowing you to do so, that said I think rcmodel is trying to keep you from wasting time and money. Ported shotgun barrels are generally only marginally effective, and if you have found one that is so effective it pushes the gun down to the degree you claim, post a video showing it and I'll buy the barrel from you for a nice chunk of cash.

There are 130 Mossberg 500 barrels on Ebay right now.

It would be easier to buy a barrel without ports. Your ill-fitting stock is the culprit, not the ports, as there is not enough pressure generated in a shotgun for porting to do much, if anything. Getting the stock properly fitted is the correct way to go.

Mossberg 500 barrels and different size stocks are available for a relatively inexpensive price. Do you need a longer or shorter stock?

The ports are there mainly for looks and do nothing to reduce recoil.

Just buy a barrel off of ebay as others have suggested. If you sell the gun you can keep the extra barrel and sell it or put it on another 500.

Statman, there is no cost effective way to block the ports on a shotgun bbl. The most cost effective solution is to buy a bbl that isn't ported, and sell the ported bbl.

Instead of buying a new barrel, since the porting probably isn't the issue here, but you mentioned several times that the stock doesn't fit you well.

...ill fit of the stock to me.

Click to expand...

Seems to me that getting a new stock may be in order. Forget having the current stock modified, as that costs a ton of money, as you mentioned. But replacement stocks, and even adjustable LOP stocks can be had for $75 or less. I'd try to find a stock that fits better. If you're getting that much movement in recoil, the stock may not be properly braced against your shoulder. A stock that adjusts to your desired LOP may fix that.
I might also add that a pistol grip stock may help, as it gives your shooting hand something to really grab onto and another point to absorb recoil.

Edit do add:

Perhaps something like this. Might be worth the $40 for the experiment.

Getting an adjustable stock when the problem has yet to be determined can also wind up being a waste of money. One needs to know what is wrong before one can attempt to correct it. There is a LOT more to stock fit than using an adjustable LOP. Cast, drop at heel and drop at comb (what sounds like might be the culprits), toe in or out, pitch, type of grip, etc. all play into having a shotgun fit. The gun should fit YOU; you should not fit yourself to the gun.

In all seriousness, duct tape.


Wrap the ports with a towel and tightly cover with duct tape.

Shoot it a few times with the ports occluded thusly and tell us what the net result was.

Besides a messy towel?

Yes you'll have a messy towel, but you'll either solve the problem or eliminate a variable.

That won't solve a problem; even duct tape applied directly will get blown off; the holes would need to be filled typically by some form of welding or similar and that would destroy the heat treatment of the barrel. It still does not address his ill-fitting stock

Or sell the gun and buy one that fits. Seems that there is already bad blood towards the gun for some reason. Walmart sells shotguns pretty cheap. Sell one, buy another. For what you would pay for a barrel or a stock you could sell your gun, add the cash you would use to make you happy with this one and buy a brand new one. Mossberg maverick88 is cheap but it's still a 500. Rem870 isn't much more. Stevens, NEF, and other 12 ga pumps can be had for less. I'm not sure why were even talking about fancy stocks and new barrels.

I think Sam was just trying to get the OP to spend as little money as possible to learn a lesson in common sense and physics. He wasn't actually offering up a towel and duct tape as a fix for the guys problem.

Covering the ports would prove that they aren't the problem. I would recommend a thin layer of metal like a soda can as the first layer and then cover with duct tape.

I suspect the OP is long gone. He signed off in post #5 and made it clear that he isn't interested in learning what is causing his problem

Metalized duct tape will work to cover the ports. A buddy used some to cover the ports on his Gold Sporting just to see if there was any noticeable effect and it worked for 100 rounds anyway. He did cover it with one wrap of black electrical tape so the color of the duct tape didn't mess him up. The pressure out there is pretty darned low.

when the 94 AE winchester timber carbine first came out i bought one, thinking it would be a perfect heavy brush rifle with a short barrel(18") with ports in 444 marlin. i have shot the rifle exactly 15 times, 14 shots to sight it in and get use to the kick with good ear protection on and one shot to kill a six point buck. my ears were ringing all afternoon and it has been setting in my gun room ever since and i would have gotten rid of it but it has gone up in price, so i keep it. eastbank.

jakk280rem said:

I think Sam was just trying to get the OP to spend as little money as possible to learn a lesson in common sense and physics.

Click to expand...

Exactly.

Virginian said:

The pressure out there is pretty darned low.

Click to expand...

Boyle's law is a real joykiller sometimes.

Well, I once had a finger right next to a port on my 16" Marlin .44 Mag Guide-Gun while shooting out my truck window.

You only want to do that once I'm here to tell ya!

Of course .44 Mag muzzle pressure is much higher then 12ga shotgun muzzle pressure.

But there is something coming out of those shotgun ports, doing something, or they wouldn't waste money drilling them in $10,000 Perazzi Trap guns.

rc

rcmodel said:

Of course .44 Mag muzzle pressure is much higher then 12ga shotgun muzzle pressure.

Click to expand...

About three times the chamber pressure of a 12 gauge.

Remember that pressure in the bore increases exponentially
as barrel length decreases.

A long barreled shotgun just doesn't have much huff to work with.

rcmodel said:

But there is something coming out of those shotgun ports, doing something, or they wouldn't waste money drilling them in $10,000 Perazzi Trap guns.

Click to expand...

They do look cool.

I had the opportunity to shoot two DT10s last year that were twins other than one being ported.
I could not for the life of me tell any difference between the two.