Pump rifle

[MallardSX2]

Do you own one? I would genuinely like to see a 1” 10-round group from one of these guns, even a customized one. I dont think it exists. If yours does this it’ll be the first I’ll have seen, and Ive seen a bunch. In that case I will happily eat my words.

Or are you referring to a 3-round group? Sure, even that would be good for one of these but thats a MUCH lower hurdle and not really what many of the folks here mean when they say its a “1moa gun”.

Consider this a challenge if you’re game.

Who the F really cares dude. Lol

 

[Joe Biss]

If I am wrong, then I am wrong. Thanks for keeping me honest and accountable my friend. Have a great evening.

Yeah, those 7400 gamemasters earned the nickname “Jam-Masters”. Allegedly very unreliable, but I’ve never personally owned one to testify.

 

[KenLee]

Yeah, those 7400 gamemasters earned the nickname “Jam-Masters”. Allegedly very unreliable, but I’ve never personally owned one to testify.

Game masters were model 742. 7400s were somewhat improved. Both needed the crud scrubbed out of the chamber or chamber honed often if you shot it much. Never leave a round in the chamber for days, or you'd need to push the empty casing out with a cleaning rod after you shot it.

 

[Joe Biss]

Did some digging on the old battle axe recently and found out it was born in June of 1966. I’m thinking for her 60th birthday I’ll get it threaded and thrown an OG 30 can on. Probably chuck the leupy and put something drop safe on as well.

As much as I enjoy hunting with these guns, I wouldn’t say they’re sub MOA from the factory. Especially at 60 years old. I feel like I’ve seen Form himself say a sub MOA factory rifle isn’t as common as people make it out to be, but don’t quote me on that. To my limited knowledge, 760’s don’t have a free floating barrel. The whole forearm/forend, action tube and barrel relation obviously affects harmonics, but I would imagine it opens the “cone” as the barrel heats at a different rate as the surrounding components in a 10 round group.

I’m waiting on a few parts in the mail, but will be conducting some load development for this gun in the near future. Results will be posted regardless, in the name of science.

 

[Halligan]

@Joe Biss for the most part you are correct on the free float, I think the exception is the guns in the 70’s that were free floated but still had the 760 bolt head. Was kinda a transitional era IIRC

 

[CMP70306]

As someone pointed out earlier,, I might be conflating my experiences with the 7400/740 version with the pump version. It was years ago using a family members' rifle but if that damned thing went BANG! 2 out of 3 times it was having a great day and if you decided to, eh, un-alive yourself with it then you had to budget several rounds as the only thing I've ever seen with less accuracy was a Taurus Judge 410/45 revolver.
Of course, it also had the near-mandatory "peek-a-boo, I-missed-you" rings on it too...
*Heavy sigh*

Yeah the 740/7400 series were garbage from what I’ve heard but being in PA we couldn’t hunt with them so nobody I know owned one.

Do you own one? I would genuinely like to see a 1” 10-round group from one of these guns, even a customized one. I dont think it exists. If yours does this it’ll be the first I’ll have seen, and Ive seen a bunch. In that case I will happily eat my words.

Or are you referring to a 3-round group? Sure, even that would be good for one of these but thats a MUCH lower hurdle and not really what many of the folks here mean when they say its a “1moa gun”.

Consider this a challenge if you’re game.

My brothers just got a new barrel so when I go to get that sighted in I’ll see about a 10 round group though it might not be until closer to the fall.

Did some digging on the old battle axe recently and found out it was born in June of 1966. I’m thinking for her 60th birthday I’ll get it threaded and thrown an OG 30 can on. Probably chuck the leupy and put something drop safe on as well.

As much as I enjoy hunting with these guns, I wouldn’t say they’re sub MOA from the factory. Especially at 60 years old. I feel like I’ve seen Form himself say a sub MOA factory rifle isn’t as common as people make it out to be, but don’t quote me on that. To my limited knowledge, 760’s don’t have a free floating barrel. The whole forearm/forend, action tube and barrel relation obviously affects harmonics, but I would imagine it opens the “cone” as the barrel heats at a different rate as the surrounding components in a 10 round group.

I’m waiting on a few parts in the mail, but will be conducting some load development for this gun in the near future. Results will be posted regardless, in the name of science.

The original 50’s and 60’s era 760 used as many parts from the 870 as possible which included the pump assembly that touched the barrel. By the 70’s they dropped that in favor of a true free floated barrel but in many cases you had to watch as the forearm could hit the barrel if you twisted it too hard.