Lyman trade rifle/.62cal Green Mt.?

[Darkgael]

I've not got the handle on the search engine here. All my queries come back with 500 responses.
Question: Will a Green Mt. .62 cal IBS smoothbore barrel fit on a Lyman trade flintlock? Seems like it would be a quick and easy (dirty?) way to try the Fowler game.
Pete

 

[Mad Professor]

Nope. 62 cal GMs are one inch across the flats lymans 15/16".

Lyman (investarms) did make a "prototype" barrel in 20 ga (62 cal). They are rare and I was fortunate enough to purchase one when I brought my lyman plains rifle 58 cal. I got the gun 2nd hand, barrel is stamped "lyman middlefield conn." and also has the Investarms stamp/proof marks. I called lyman and got a denial that they ever sold this but both Dixon's and TOTW have seen other examples.

The regular 15/16" GM barrels are close to a drop as my TCs are but that won't get you a smoothie ( do they make a 15/16 54cal smoothie?).

Some say 62 cal is too big for a 15/16 but mine is still together after many years of use. Further if you look at lymans load data pressures actually drop for loads as the caliber increases.

I have a drop in barrel for 15/16" TCs/lymans/investarms that is 12 ga with a full choke chrome bore. It was made by Toledo in Spain and bears their proof. Some say "too thin"; it has been proofed to 10,000 psi and a max 12 ga load is ca. 2/3 of that. I fleabayed that barrel NOS and I imagine there are more out there if you look hard enough.

P.S. Navy Arms was the importer for the 12ga barrel but they knew/know squat about it if you try calling them.

P.P.S. the above barrels were perc but I'm sure could be adapted to flint.

 

[Deadeye]

Hi MP, Glad to hear someone else got one of those Toledo barrels. I bought mine from Navy about 25 yrs. ago for $26 + shipping. I've shot some very heavy loads in it and it's never flinched but everytime I mention it on here seems no one believes a 15/16" barrel could be 12 ga. I used to have it in a Lyman trade rifle stock but have since sold that stock and now shoot it in a TC.
Good barrel, light, kicks like a mule.