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Double Rifles, Single Shots & Combinations >> Double Rifles

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casper50
.400 member

Reged: 18/10/07
Posts: 1597
Loc: Alaska

Proofmark puzzle
#394793 - 05/12/25 12:07 PM

If I am reading the proofmarks correctly this was first proofed as a .577 BPE. With the smokeless proof does this mean it is now a nitro express?

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3DogMike
.400 member

Reged: 29/01/15
Posts: 1499
Loc: Western Slope, Colorado USA

Re: Proofmark puzzle [Re: casper50]
#394806 - 06/12/25 03:24 AM

Belgian Proof Marks: The (partly indistinct) Lion over the PV indicates smokeless proof.
The .577 and "express" certainly look like typical British stamping. "Express" has zero to do with differentiating BP or smokeless.
What rifle maker? What length cartridge?
Without knowing the maker or the approximate age it is hard to tell if it was originally BP Express….

- Mike

--------------------
"Will Rogers never met a fighter pilot"
- Anon

“Always carry a flask of whiskey in case of snakebite, and furthermore always carry a small snake."
-- W. C. Fields

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casper50
.400 member

Reged: 18/10/07
Posts: 1597
Loc: Alaska

Re: Proofmark puzzle [Re: 3DogMike]
#394807 - 06/12/25 03:57 AM

It's not mine so I can't give you any of those answers. The owner is all hyped up that it's a .577 nitro express. I have told him that it isn't built for nitro loads.

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3DogMike
.400 member

Reged: 29/01/15
Posts: 1499
Loc: Western Slope, Colorado USA

Re: Proofmark puzzle [Re: casper50]
#394809 - 06/12/25 04:39 AM

The owner needs to weigh the rifle.
The weight would give a "best guess" as to BP Express versus full on Nitro Express.
- Mike

--------------------
"Will Rogers never met a fighter pilot"
- Anon

“Always carry a flask of whiskey in case of snakebite, and furthermore always carry a small snake."
-- W. C. Fields

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Huvius
.416 member

Reged: 04/11/07
Posts: 3645
Loc: Colorado

Re: Proofmark puzzle [Re: 3DogMike]
#394824 - 06/12/25 11:18 AM

Looks like a Jones style lockup which could be black, light nitro or full nitro.
Mike’s suggestion of weighing the rifle makes a lot of sense.
The only 577 I’ve ever owned was an Alex Henry double which, of course was a black powder rifle, but was a really heavy rifle.
Way heavier than a 500.
And, in the shooting, was WAY more powerful than a 500.
Unless someone is looking to turn a purchase and make a pile of money, I don’t see any desire to own a full house 577!
Well, that’s a little lie…. I’d like to have one but I don’t necessarily want to shoot one!!

--------------------
He who lives in the past is doomed to enjoy it.

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