I just bought a brand new Mossberg SA-28.
I first tried my light (1200fps) reloads & no go.
I then loaded up some heavier (1300fps) reloads
and still no go! (Hodgdon Universal powder)
I finally thought to try a couple of the Winchester AA
factory target loads (1200fps) and voila, they cycle
just fine!!
Do I just need to shoot a few rounds of skeet with these
factory AA's to "break in" the gun before it might cycle
reloads?
Any help will be greatly appreciated.
Thanks,
Jeff

I would say you have eliminated anything else being the cause but the ammo. I bet as you shoot it more with those factory shells it will become more able to function with your hotter reloads. Maybe try loading to the same specs as the factory load and if possible using their powders? Just a thought but I think your problem will go away in time.

I am sure you have cleaned it and lubed it properly.

Good luck!

That was my first thought as well.

My wife's SA28 did the same thing with my 1200fps AA reloads. She did a couple of tournaments with a new AA in the chamber and a reload in the magazine and got thru them okay.

I wound up bumping the load to one for 1250fps (Alliant 20/28) and so far that's worked okay. We were out a couple days ago and she shot about 3 boxes with no issues and that's with maaaaybe 500 rds total thru it.

Yes it's been cleaned & lubed.

So I'm going to shoot some skeet with the SA-28 on Wednesday
and try Stuck-N-Kali's wife's trick with the factory load in the
chamber and a reload in the magazine and see if I get the same results.
Thanks!

Are you using the same hull on your reloads? The actual hull head material (steel, brass washed steel, or pure brass), and final shape of the finished load) make an impact on semi-auto reliability just like the actual pressure.


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Yes, my reloads are Winchester AA's.

Are you resizing them?

My reloader is a MEC Sizemaster.

I had the same problem with my SA-28 not cycling my reloads, though in my case it was 5/8 oz at 1350 fps. I also experienced a tight chamber; shells that would go into my 1100, Citori, and Ruger would stick going into the SA-28. I tightened down the collet on my 9000 to fix that problem. Had to go up to 3/4 oz over 14 gr Unique to generate sufficient gas for cycling. I like this gun but will be using it mostly for hunting with factory ammo due to the above experience.