16ga.com ~ View topic

That helps Very Happy

The 65/18.7 is the standard CHAMBER length and diameter used prior to 1924 (but found later)
The 17.1 is the cylinder bore of .673 measured 22 cm from the breech (a bit over the standard of .662-.665)
It should also have a 16 over C in diamond.
The date codes started in 1922 so your's probably isn't stamped with one.

Joined: 11 Nov 2007 Posts: 72 Location: SE Wyoming

Yes, it has a 16 over c in a diamond

cap

Definitely pre-1924. Neat find Cool

I use a steady diet of RST's for my 16 ga 2.5" English SxS, but I have used some Gamebore for my 12 ga 2.5" English SxS. They seem to be ok, but I have not patterned them.

Let me know how the 16 works on pheasant. I just purchased my 16 earlier this year as a grouse gun. It is choked .001 and .010 and I am finding on pheasant I need to be selective on my shots, or I just end up dusting them. I would say 25 to 30 yds is probably about the maximum for my choke combo, at least with the #6 RST.

Just last night I was thinking to myself that I need to get another 16 with a little tighter chokes for the pheasant game. I can even use the rationalization that the 12 is a little open, because it is choked .002 and .022.

Come to think of it all I own is grouse guns, so I definitely need to look for at least one pheasant gun.

Chicago Mike Very Happy

Joined: 11 Nov 2007 Posts: 72 Location: SE Wyoming

here it is

Joined: 11 Nov 2007 Posts: 72 Location: SE Wyoming

RST must have US shot size? Thinking about 1oz 5s in the 2 1/2s. I would think the larger shot with the tighter chokes would be the hot setup.

Interesting and confusing cl:
I could give you more infro if you would post an ultra close-up pic like this pre-1924 gun

You have the usual pre-1924 marks BUT the 'Crown over R' was used 1894-1968 for rifled barrels AND the CIP (European) standard didn't convert to BAR until 1989?? 900 BAR would be the usual proof for 2 3/4" chambers. I don't see the post-1922 proof dateletter.
Have you measured the chambers? Roll up a 3X5 card and slide it into the clean chambers. You can feel the resistance when it hits the forcing cone, mark the card then measure. It's possible that the chambers were lengthened and it was re-proofed but the re-proof controllers mark was a 'Star over capital letter' rather than a 'Crown over.'
Your brls weigh 2.52 # BTW.
Larry Brown might be along to help.

Joined: 11 Nov 2007 Posts: 72 Location: SE Wyoming

I measured the chamber, it's 2 9/16. I'm having a hard time geting a closer shot. The flash washes out part of the plate. I'll work on it.

cap