Rolling block ID? Reline or rebarrel?

[Remmy4477]

Just picked this off GB.

Remington rolling block #1 action but unsure if it's a type three or four? Still not in my hands yet.
Said to be chambered for the 43 spanish with a great bore, 18 inch barrel, sure it was cut.

Been wanting a roller in 44-40 for a long time so this one will be converted.
However I am having a hard time finding either a barrel or just a liner with a .427-.428 bore.

Red man's has a liner in .428 but with a 1 in 25 twist, not sure how well that will stabilize a 200 grn boolit? Have seen a few online say it is closer to .431?

Green Mountain has a barrel, 20 inch, 1 in 36 twist but bore diameter could be .428-.430 according to the rep I talked with. Breech end is .915, guessing way too small for the #1 breech threads. I guess a smith could turn it for a liner? But still want a .427-.428 bore.

Would appreciate ideas on the barrel/liner? And possibly ideas on a smith that don't have a 6 month to a year waiting list.

324560

[John Taylor]

Most original 44-40 rifles had a 1 in 36 twist. TJ's liners has 1 in 24 and 1 in 18"

[Remmy4477]

Will the 1 in 24 do ok with 200grn boolits?

[John Taylor]

Will the 1 in 24 do ok with 200grn boolits?

My book says that 205 grain with 1 in 36 should work fine. So a 1 in 24 should be fine also.

[Remmy4477]

My book says that 205 grain with 1 in 36 should work fine. So a 1 in 24 should be fine also.

Thank you sir!

[john.k]

IMHO ,the 1/36 is not ideal if you want to use heavier than 220gr ............yes ,this is the traditional 44 twist ,but Id go with 1/24 ,if I had the option

[Bigslug]

Since you have a pretty solid idea of where you want your bore and groove diameters to be, you'll probably do best going straight to the manufacturers and tell them what you want. If they have a tolerance range for selling blanks to the masses through a distributor, they should have the ability to gauge a few for you and pick one that's in your happy place. If that's a dry well, you might consider ordering a barrel blank from one of the makers that does cut rifling, and see if they can simply stop cutting/lapping when they reach your dimensions.

[John Taylor]

According to TJs the bore is .420 and groove is .428 on their liners. These are hammer forged from 4130 steel.