Remy Mtn Rifle Barrel twist question

Ruttinbuck

Ruttinbuck

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Just picked up a older Remy mtn rifle (blued/wood stock)with detached mag in 260rem. Serial # starts with D.
Anybody know the barrel twist rate?
Thx RB
 
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A blued/wood mountain is most likely a 1:10 inch twist. Remington later switched to 1:9 then I believe to either 1:8 or 1:8.5 around the time they went under.
 
Thx for the input. I'll try running a rod through to get a definitive number. Figuring out where to start with reloading bullet weight. Didn't realize how much twist rate can affect bullet stability in the 6.5mm. If it's too slow a twist to stabilize 140s might as well start at 130 and go from there. RB
 
If knowing the twist rate is important, the OP is probably better off to measure it. I only own one Remington 700 rifle - the serial number is on the action. The barrel is most definitely a "custom" barrel. I do not know if Remington marked their barrels in some way to know they went with which receiver - so OP may not have a way to know if that barrel left the Remington factory on that receiver, or was screwed on later. If so, Remington has no way to know the twist rate - although they likely know the twist rate of the barrel that was on that receiver when they last had the rifle. I read nothing that says it is the same barrel, now.

There was a certain Alberta barrel maker who was into gain twist barrels - so I understand that to mean the twist rate at the muzzle end is faster than the twist rate at the chamber end. Once playing with a "custom" barrel to verify twist rate - I suspect one has to determine the twist rate from either end to know whether that is or is not a gain twist barrel. I do not think that I have seen a gain twist rifling - I do not know if that is visually apparent. or if one has to measure it to know.
 
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