Mossberg 590M Mag Fed Shotgun.

So say I want a mag for this thing so big that I could use it as a monopod, Im 5'9, I want a 5' long double stack magazine. WHY you ask? Cause I can use it as a monopod. Sure it will weigh 200lbs, but that's what the gym is for. Think outside the box people lol.
 
BeaverMeat said:
Where can one find brass hulled 12ga 00 or #4 buck shot?
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I have a dozen brass hulls I reload for an old Marlin pump and a 1907 built Win 1897 I don't want to run full power commercial ammo in. My fancy custom built reloading rig is a notched chunk of 2x4 and a wooden dowel. The up-front cost of the brass hulls gets recovered pretty quick reloading, and brass hulls can be reloaded almost indefinitely.

Back to the original topic...

Box mag shotguns are going to be a "thing" sooner or later. Still kinda fringe for a niche crowd, but it works out the same as why box mag rifles have replaced lever rifles and fixed mag rifles. The big problem for 12 gauge is the shape and design of the hulls. They have three catch points - the blunt nose, the rim, and the brass to case transition - and the deformation weakness, which isn't just a storage issue. The hulls "flex" and bow under pressure, so when feeding, makes the issues with the 3 catch points even worse.

Shotguns with box mag designs have come and gone over the years, but no-one has yet fully beat the problems created by the hull design. Maybe Mossberg or Rem finally has it with these new guns... Who knows? Time will tell.

I'm basically following it to see where it ends up. I'm done throwing good money after bad on box mag shotguns for the time being though. When we start seeing them widely adopted on 3-gun, I'll sit up and really pay attention. If someone comes up with something that's grunt proof and gets wide military adoption (and no, the Russians don't issue the AK pattern shotguns to anyone - a few no-patch, borderly mercenary "spec ops" types use them in very limited capacity, and that's it), then I'll really be sold.
 
Winchester is going to be offering brass hulled 00 shells next year as part of their WW2 Victory line.

While its more of a novelty item at this point, it might help prompt brass hull ammo to become more mainstream in the future?
 
Butcherbill said:
That's what I figured, I have two loaded mags that have been sitting for 1-2 years with no deformity in the hulls. I'm not saying it can't happen, I'm just stating what my own expierience has been in this area.
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It might be a different story if you're talking higher capacity mags that likely require more spring pressure, and/or they are stored in tempuratures high enough to lower the deformation threshold.
 
Sounds to me that if a person were to rotate, or shoot their "just in case" ammo let's say twice a year....... there would not be much to worry about as far as deformed shells.
 
I'd still be selective with my ammo, if I couldn't have brass hulls I'd at least go with roll crimped shells.
 
870P said:
It might be a different story if you're talking higher capacity mags that likely require more spring pressure, and/or they are stored in tempuratures high enough to lower the deformation threshold.
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Yeah I could see that, mine are 5 rnd grizzly mags. They're loaded with 2 3/4 Estate 00buck and Remington 00buck.
 
I get the argument, but I won't be buying a shotgun with a vertical magazine anytime soon. IMHO, one of the primary advantages of the repeating shotgun, pump or auto, is the ability to rapidly chamber a different type of shell from what is in the magazine. Although frequently referred to a slug select drill, it might be buckshot in place of slugs, birdshot in place of buckshot, or a less lethal in place of birdshot, or any combination thereof. I don't see how this could be achieved when a vertical magazine replaces the elevator on a repeating shotgun, without implementing a magazine cutoff of some type.
 
Boomer said:
I get the argument, but I won't be buying a shotgun with a vertical magazine anytime soon. IMHO, one of the primary advantages of the repeating shotgun, pump or auto, is the ability to rapidly chamber a different type of shell from what is in the magazine. Although frequently referred to a slug select drill, it might be buckshot in place of slugs, birdshot in place of buckshot, or a less lethal in place of birdshot, or any combination thereof. I don't see how this could be achieved when a vertical magazine replaces the elevator on a repeating shotgun, without implementing a magazine cutoff of some type.
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Carry an extra magazine with the alternate ammo. Want to do a slug changeover from buckshot? Remove the magazine, quickly throw it in a dump pouch, and insert the new mag and rack the pump. Easy.
 
Vertebrae said:
Carry an extra magazine with the alternate ammo. Want to do a slug changeover from buckshot? Remove the magazine, quickly throw it in a dump pouch, and insert the new mag and rack the pump. Easy.
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Always quicker to top up the tube, especially if you just want to load one or two of a different load. I love my mag fed 12g but I think a tube fed shotgun is more practical. I might slug hunt with it this year though, my 870 rifled barrel w/ cantilevered mount fits on my mag fed grizzly. Then I won’t have to temporarily plug the mag to 3 to legally hunt with it.
 
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