Harrington and Richardson Huntsman 45cal muzzle loader.

[Dustin]

Recently bought this old rifle from my uncle i got it and two other guns for 100 dollars. he told me that back in the day you could get a conversion plug for them to convert to 45 long colt. anybody know anything about these conversions or if they still make them? any help would be appreciated.

 

[Bluehawk]

I have the .58 cal version...have never heard of any conversion...in fact it's hard to find any info on these early in-lines!

 

[arcticap]

H&R used to offer factory fitted conversion barrels, but since Remington bought the company they won't fit barrels to the older guns. A person would need to do that on their own.
A replacement barrel would be relatively inexpensive.
A .45 Long Colt/.410 barrel was the only center fire cartridge that could be used with their shotgun receivers, and H&R used shotgun receivers to build their muzzle loaders.

 

[the Black Spot]

used to be a man here in arkansas(long sinced passed on) that took H&R 45-70's and plugged them on purpose to hold a shotgun primer. installed a thick brass ramrod. they shot great with conicals. maybe you have one of those? if so you might be able to get a replacement barrel.

 

[arcticap]

This outfit has all kinds of chamber adaptors & inserts. Maybe something could be customized to work.

http://www.mcace.com/

 

[Smilin Jack]

I have the .58 cal version...have never heard of any conversion...in fact it's hard to find any info on these early in-lines!

H&R 58 cal in-line

I had one of those for a number of years and traded it off, and got a 58 cal Navy Arms Hawken Hunter side lock. The H&R was a very good shooter with round ball. Wish it was still here to shoot.

I got a cow elk and a 3 pt buck (western count=one antler) with the Navy Arms 58 cal, shooting the Lyman 577611 minnie ball. It does hammer them dead with over 500 grains of lead.

Dave

 

[Bluehawk]

SmilinJack
what is the correct ball and patch size for the .58 Huntsman and what loads are acceptable in it?