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Owners of 9.3x74R Double Rifles: Muzzle diameters?

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22 September 2007, 21:11
RIP
Owners of 9.3x74R Double Rifles: Muzzle diameters?
Please post the the diameter of muzzle for your barrels and the make of the DR in 9.3x74R chambering. Barrel length and total weight of the gun would also be interesting. This is aimed at feeling out a rebore to 400 Nitro Express (Aboriginal Missing Link), i.e., from .366 to .395 Caliber.
Thanks. salute
22 September 2007, 23:16
MacD37
quote:
Originally posted by RIP:
Please post the the diameter of muzzle for your barrels and the make of the DR in 9.3x74R chambering. Barrel length and total weight of the gun would also be interesting. This is aimed at feeling out a rebore to 400 Nitro Express (Aboriginal Missing Link), i.e., from .366 to .395 Caliber.
Thanks. salute


My 140E Merkel S/S, 9.3X74R has a muzzle diameter of .529", and a length of 23.5", and weighs 8.3 pounds. IMO a perfect weight for the 9.3X74R double rifle.

My Winchester Euro O/U, 9.3X74R, has a muzzle dia of .520", and length of 23.25" , and weighs 8 pounds even, without the scope.

Hope that helps! beer


....Mac >>>===(x)===> MacD37, ...and DUGABOY1
DRSS Charter member
"If I die today, I've had a life well spent, for I've been to see the Elephant, and smelled the smoke of Africa!"~ME 1982

Hands of Old Elmer Keith

23 September 2007, 07:34
RIP
Yikes!
Thanks Mac.
With a barrel wall thickness in the grooves for .395 rebore, that would only leave .0670" for the Merkel and .0625" for the Winchester Euro 0/U.

Guess I better think about monobloc of a shotgun with some new McGowen barrels. I get 12" twist that way.

Anybody know what the 9.3x74R standard twist rate is?
23 September 2007, 08:25
Black Fly
My Browning Express rifle is .544 inches at the muzzle, weights 7.25 pounds with 22 inch barrels.
Bfly


Work hard and be nice, you never have enough time or friends.
23 September 2007, 08:29
Black Fly
Forgot, Twist is 1 in 14.
Bfly


Work hard and be nice, you never have enough time or friends.
23 September 2007, 13:37
Andre Mertens
My FN-Browning CCS25

Muzzle dia : .510
weight (scope incl.) : 8,4 lbs.
Bbls : 26", 1-14 twist.


André
DRSS
---------

3 shots do not make a group, they show a point of aim or impact.
5 shots are a group.
24 September 2007, 00:20
RIP
Thanks, BF and AM, the muzzle diameter spread is interesting. Twist rate noted.
Sounds like the Ruger No.1 will be the shop mule for load development for a 400 NE DR of the future. Apparently the 400 NE, aka 10.03x76R, will have to be a bit heavier and longer than the spritely 9.3x74R DR's.