hopkins and allen underhammer shotgun info

[troy fairweather]

i picked up a numrich arms hopkins and allen underhammer shotgun no markings on ga i think its a 14ga the muzzle is ,675 there is an nunber midway up the barrel of 2010 i cant find any thing on them making shotguns from the underhammers its a 30 inch barrel bead sight i got the gun from a man that worked a numrich 30 years ago he dont remember much about it is this maybe a one off. id like to get a rifle barrel one day if u know how still makes them any info will help thanks. troy

 

[desidog]

They were available from Numrich both finished and as a DIY kit.

If the barrel isn’t rifled it was a kit.

You can order a Colerain barrel from Track of the Wolf in a variety of calibers; off the top of my head I think H&A’s are threaded 18x5/8.... but it’s been 5+ years since I’ve worked on one, so verify that before ordering.

 

[paul harm]

Go here for shotgun fiber wads and gauge info www.circlefly.com 677 is 15ga.

 

[troy fairweather]

thanks for the info guys any idea about the charge of pb around 70 to 80 grains seems good ?

 

[troy fairweather]

They were available from Numrich both finished and as a DIY kit.

If the barrel isn’t rifled it was a kit.

You can order a Colerain barrel from Track of the Wolf in a variety of calibers; off the top of my head I think H&A’s are threaded 18x5/8.... but it’s been 5+ years since I’ve worked on one, so verify that before ordering.

thans for the info dont see any on there sight i may have to call. troy

 

[paul harm]

At one time they were quite popular. Some of the machinist I knew made them in 45 cal. Nice little gun without many moving parts. I believe the breech plug is 3/4 X 16. They also made that style pistols.