Turkey hunting? Had one when I was in high school. Duck and goose killing machine, even a pheasant or 2.

 

I've cut down many BA shotguns and put front and rear sights on them. They make really good slug guns. Never wacked on the
goose gun model. I did put a straight 6x scope on a Marlin Goose gun for a guy, he claims 150yd. Shots on deer.

 

Maybe a badass slug gun.

 

Not with a full choke :ahhhhh:

 

I've never shot slugs through it because it wears the factory full choke and I want it as tight as possible unless I have it fitted for inserts. I'm setting it up for turkey shoots.

But I've always heard that although you could shoot rifled slugs through a full choke, the accuracy was bad

 

Foster slugs will shoot through any choke, in fact if you visit some dedicated shotgun sites you will discover some smooth bores with a full are more accurate that a more open choke, silly but true.

 

Fifty six years of shotgunning has taught me a Foster through a full choke can be damn accurate.

 

Nice job, nice sight. Growing up, a bud had a very rare bolt action Marlin Swamp Gun, 3 inch. I would be so tempted to chop the barrel and add screw in chokes to make a Swamp Gun clone, rather than talk, I should just do it. Like your gun mods alot, but just keep thinking of that Swamp Gun.

 

I've got a lot of experience with slug guns. I've made them out of every make & model you can think of. Most of the guns that I have
cut down are full choke. That's only because it was hard to sell a gun in these parts, if it was other than FC. The reason for cutting
was just to get a quick pointer. Having said that, a Foster slug will go through any choke without damage. The choke damage myth is
a hold over from the old Pumkin Ball load, which was a solid lead ball, which could damage a choke. The older generation of guns
had longer chokes, that were bored internally. Most of these guns will shot a slug accurate, but this is on a gun to gun basis, not
having anything to do with choke or brand. The newer generation guns have chokes that are pressed in externally, and are short.
i have found that these guns in FC the worst for accuracy. Also when cutting these barrels you will notice, 99% of the time that the
bore is not centered. If you have a smooth bore that shoots into 3" at 100yds. I would not run out and buy a rifled barrel gun. The
main thing I have found is solid construction of barrel to receiver. Single shots, bolt actions, and old model repeaters made the best
slug guns. The different means of barrel attachment on repeaters plays a big part. There was a lot of slug shoots around this area.
Guys were having their barrels silver soldered in the action and there were aftermarket tourque nut sets for barrels. When rifled barrels
came out this stuff disappeared. Now that we have a limited rifle season, slug guns are going the way of the Edsel. If you want a good
deal on a slug gun, come to Ohio, you can't give them away now.

 

Talk about your "money shot" :flute:

 

Talk about your "money shot" :flute:

Oh yeah. That is the "holy grail" for 'turkey shoot' guns!

No doubt about that. Nice!

Gr8rtst.

 

I have been having the same issue finding a sight for one I have. Where did you pick this one up at? Is it a Lyman 40SM?

 

There are a lot of Receiver sights adaptable to B/A shotguns. I've done many and have never had a designated sight
for the gun. The sight must mount on left & have clearance for bolt. The last 12g I did for a buddy was an old Moss.
The sight we put on it was a Williams, I think it was for a Jap Rifle. Some times a short extension can be made to
move the sight rear wards for bolt clearance. I might add that in most cases the gun will require a lot higher front
sight to shoot slugs.

 

Finally found a Lyman 40SM and also found one from Marlin at the same time. Perfect fits and no need to machine an adaptor. Boys will be happy at the turkey shoots this year.

 

retiredmarine20
Did you get a sight directly from Marlin/Remington? Care to share the model # of the sight

 

I would love to know the model of the sight too. Thought about mounting a scope on mine but seems like a huge pain in the ass. I think the peep sight oils work for my needs.

 

Check out Williams 5D, they have a model that will fit 55, don't know the model number.

 

It looks like the Williams 5D-81. Could work. Anybody had any luck with this one. Said to fit Marlin 80 and 81 models.

 

I like your peep on shotgun.

 

Williams 5D-81 would not work . Holes too close and not enough meat to drill a new one further apart
I got extremely lucky ordered a 5D-81 from Amazon would not fit . they were great and accepted the return .
next day found a lyman on ebay described as a Lyman 40 only . Took a leap of faith and what do you know its the right one
happy as a clam now

 

Will a Williams 55M work? I just pulled the trigger on a Williams sight listed on ebay as a SSM. With original box. You can see partially the side of the box and it appears to be hand written 55M. $22 + 3 for shipping. If this fits my Goose gun I'll be tickled pink, if not, plan C, D, maybe E.......

 

Don't believe a 55M will work .. but hold out hope stranger things have happened

 

 

Step one - find the peep sight: 5 years
Step two - screw up the courage to cut up a perfectly good shotgun: 2 years
Step three - modify stock and add peep: 30-45 minutes

It's not perfect, but it's very good.

The shotgun is so massive I can't get it all in focus!

Gotta love it! :congrats:

 

My first gun was a Marlin 55, not the goose gun but rather the one with a 26" barrel with a poly choke. I added the Lyman peep sight back around 1974, needless to say I don't remember the model number and it's not marked on the sight. I started my Tool and Die apprenticeship back in 1979, and after a couple of years I felt confident enough to convert it into a slug gun. I cut the barrel down to 20", which was just enough to remove the poly choke and the ports that Marlin cut in the barrel behind the choke. I also machined a front sight and I attached it to two barrel bands that slid over the muzzle and it's held in place with set screws. I made it this way because I didn't know how tall to make it, but it worked so well that I continued to use the set screws after the sight was finished.

Next I had to come up with a way to mount a scope. We didn't have the internet back then, so I was on my own to come up with something that worked. The ejection port is cut so high that there's no metal directly above the bore. To make matters worse, the bolt on the 55 raises up so high that it would hit a scope mounted above the receiver. A friend of mine owned an old Carcano rifle, it also had the same problem with scope/bolt interference. He had bought a Weaver side mount that bolted to the left side of the receiver, this mount wasn't able to attach to my Marlin, so I machined an adapter to make it work. I drilled and tapped the left side of my receiver to attach my adapter, then I attached the Weaver side mount to the adapter.

Yes the scope is awkwardly high and to the left, but it's not much worse than a side mount on an older top eject Winchester 94. An added bonus is that by putting the scope where it is, I can still use the peep sight with the scope attached. While I was at it, I also free floated the barrel and glass bedded the receiver. The gun ain't pretty, but it works. You have to remember that I did all this before anyone ever thought about rifling a shotgun barrel. And back then manufacturers added rifle sights to their shortest barrel that had a fixed improved cylinder choke, and called it a slug gun. I may not be able to shoot any of the new slugs that require a rifled barrel, but out to 100 yards that's not much of a disadvantage. I moved to Florida from New Jersey in 1989, so I haven't hunted with this gun since then. A couple of years ago I thought I'd buy a couple boxes of slugs and take it to the range, I just wanted to see if the old gun still had what it takes. My first three shots were touching, then the recoil started to get to me. The fourth round came close, but I felt myself flinch on the fifth shot, that was the one that's low and right. I should've stopped at a three shot group, but any one of those shots would've resulted in a dead deer. The rubber in that 55 year old recoil pad is about as soft as a rock, maybe one day I'll change it to a limbsaver pad.