HP-9 failure to feed

supernova

CGN Ultra frequent flyer
GunNutz
Rating - 100%
206   0   0
Location
Western Alberta
I just pulled my HP-9 off the EE due to a recent problem. When firing magnum shells, the action kicks open after firing. Not a concern, I heard most 870s do that with heavy loads. But when I rack the action it ejects the fired round and does not feed another from the magazine. I have to close the action and reopen it to feed the next round. It does not do this with managed recoil slugs, only 1 oz. 1600 fps or hotter/heavier loads. With lighter loads it functions just as it should every time, with heavy loads it fails to feed. Looking inside the action while cycling by hand I can see both shell stops working as they should, fired hulls cycle with no issues. The action bars and shell stops are not worn, the gun is less than a month old. Any ideas? Does anyone else's HP-9 do this? The most uncomfortable part is I found this out after hiking a trail with alot of black and grizzly bear droppings, alongside a long berry patch while carrying this thing! Thank God I didnt need it, it would have failed me.
 
I've had a similar problem, in mine it seems as if the ramp is not extending fully downwards, and the edge is sitting against the bottom half of the case, holding the next round into the tube. I'm guessing its a spring issue, it's been happening every ~10 rounds. Never though to compare magnum vs regular, will do next trip out.
 
I've had a similar problem, in mine it seems as if the ramp is not extending fully downwards, and the edge is sitting against the bottom half of the case, holding the next round into the tube. I'm guessing its a spring issue, it's been happening every ~10 rounds. Never though to compare magnum vs regular, will do next trip out.

I'll check for that in mine as well, I dont remember seeing that but I could be wrong. May be as simple as a burr or some rough machining in need of a little polishing.
 
You carry a Norinco for bear defence and you think it was the gun that failed? Seriously, its always a good idea to test your equipment and ammo before hand if your life is going to rely on its function. Just saying. Hope you get it sorted.
 
You carry a Norinco for bear defence and you think it was the gun that failed? Seriously, its always a good idea to test your equipment and ammo before hand if your life is going to rely on its function. Just saying. Hope you get it sorted.

Easy turbo. carried. one time only. The gun previously ran great with managed recoil slugs, then proved why I overlooked Remington and bought a Benelli in the first place. Those of us who read this thread noticed I mentioned the gun would have failed me. Not that it failed me. Not to mention the fact that I mentioned it ran great on managed recoil loads. Not tested? Pretty sure I would remember typing that...but I dont hmmm
 
Well after talking to the warranty center for HP9s in Canada, I can pay for shipping for them to look at the gun and IF I bought it through their distributor (I have no idea how to figure that out) and can wait for them to fix it and send it back, they will pay for it. If it was not bought through their distributor I have to pay for the repairs. I have to spend money on the gun to get it to work right from brand new? BS. F-that. I ripped it apart and had a good look at things, nothing seemed f**ked so I cycled spent hulls through it and can get it to FTF every time. The shell stops have insufficient clearance between them when spread by the action bars to allow a shell to pass through them. Only when racking the action unreasonably hard does the gun feed perfectly. The problem with magnum rounds came from the fact that they kick the action open which gave me less room to build sufficient momentum to smash it hard enough to feed. I bent the RH shell stop a bit and it helped alot, it will cycle magnums fine now with less aggressive racking. It may need some filing and maybe more bending to work right but its getting there.
 
HP9 problems

I had similar problems with my brand new HP9. It turns out that my problems were related to a really rough chamber. I could feel rough machine marks (or something) with my fingers. I used an old bore brush wrapped in 0000 fine steel wool and a drill to polish the chamber. I haven't had a problem since.
 
Tore it down again, I bent the shell stop back almost flat and it cured the FTF problem. The action bar does not open this shell stop when the action opens, if I pushed in on the action bar it would feed the round. With it bent flat it does not interfere with feeding, it will feed no matter how gently I open the action. I was also not impressed with the floppy ### ejection this shotgun passed QC with (or did it?) so I pulled what looked like a cut-down bic pen spring out of the bolt and found an M1 ejector spring is a slightly smaller O.D. and much much higher spring rate. I cut it to the same length as the OE spring and wrestled it in there. No more stovepiping or rounds barely flopping out of the ejection window. With its newly installed testicles I might let it come to the range more often, but it will not stand-in for the Benelli. Real tools for real jobs.
 
Ejector Spring?

Well that is something I'll have to look into. My HP9 doesn't exactly throw the spent hulls with authority. I've considered replacing the ejector and spring with an actual remington part, I just haven't got around to it.

I bought this thing so I could tinker with it and learn. And if I bugger it up, no great loss.
 
Back
Top Bottom