platinum lined vents

[TFoley]

I just had one made for the bargain price of £40. An absolute necessity for shooting a .451 target rifle.

Having recently bought one from a well-know dealer oop North, for more than twice that amount, I am just one of a number of UK-based shooters who would be grateful to learn more details.

 

[TFoley]

I'm wondering how nipples are platinum lined as the melting point of Platinum is over five hundred degrees higher than the tool/stainless steel of nipples so I doubt it a plating operation. My guess is it must be a swaging operation of a platinum pellet sort of like riveting. Any one know how this is actually done ?

The nipple is drilled and the platinum insert is, uh, inserted. I can't detect any threading, for instance....

 

[Okurok]

I just purchased one for $60 from Buffalo Arms Company.

 

[nkbj]

There's one wildly over the top powerful flintlock fast twist .52 bore made for heavy charges with heavy paper patched bullets that I've wondered if particulate cutting will enlarge the flash hole in the vent liner, so just in case I have stainless steel socket face set screws to drill and make replacement liners. But now I'm too old to chase grizlies and buffalo and somebody else killed out all the brontosauruses.

 

[Bushfire]

The builder doing my Manton styled rifle I'm having made said later mantons had platinum surrounding the vent. To this day uts cost prohibitive so he's going with 18c gold which as I understand it was also used.

 

[oldwood]

In the early 1970's , berylium / bronze touch hole liners were the rage. Put one in my .50 cal. , 44" Getz barreled flint rifle I used for competition , and practice. Don't know how many thousand balls put through the rifle , but eventually , two things happened. First , the barrel (bore) began to wear , I had to upsize the balls used from .490 , to .495 , and downsize patching from .012 , to .008 thickness. Always used Dixie , Old Zip , mutton fat lube. Second thing happened......the touch hole enlarged , causing point of impact shift. Replaced the berylium touch hole with a cheap stainless steel one , drilled out to 1/16" , and all was good again.. I use stainless steel the last 40+ yrs. , good enough for me.

 

[Uncle Miltie]

The builder doing my Manton styled rifle I'm having made said later mantons had platinum surrounding the vent. To this day uts cost prohibitive so he's going with 18c gold which as I understand it was also used.

The less expensive option would be platine: it's around $920 USD per Troy Oz. versus 18K (.75%) gold which is almost $1500 USD per troy oz.

 

[M. De Land]

The less expensive option would be platine: it's around $920 USD per Troy Oz. versus 18K (.75%) gold which is almost $1500 USD per troy oz.

How about silver lining ?