natman said:For all those recommending a 788 in 30-30, there's no question that a 788 is a far superior rifle to a 340, but a 788 in 30-30 will cost at least twice as much as a 340. A nice 788 will be enough that you could buy a new 30-06 bolt action.
SARuger you have to use a side mount with the Savage 340, there isn't a rear receiver ring to drill and tap. The rear ring is split for the bolt handle to slide through. Weaver still makes the side mount for these rifles.
I don't think anyone has suggested he can get a M788 for anywhere near the cost of a Savage 340. We've either said "pony up" or "save up" for one. Right now I can purchase brand new Savage Axis, Remington 783, and Ruger American rifles starting at $200 and not exceeding $325. So if you're wanting a Savage 340 in .30-30 it isn't because you want a cheap rifle, it's that you want a bolt action .30-30.
BTW, don't put the Weaver side mount on one of these. It's designed for a larger diameter receiver and will never line up with the bore. Mine came with one and I ended up putting a peep sight on it.
The later models came tapped for a scope mount and these are available and are vastly superior to the weaver side mount on this rifle.
SARuger said:Is this the scope mount/rail that I need? I have been searching but get different answers.
That is the correct mount and will work with your rifle. Now the question is is your rifle D&T for that scope mount. Need to see a picture of the left side of your receiver to be sure. Not all Savage 340's were D&T for scope mounts. Since you say there is only three screws on that side of your rifle, that makes me think your rifle wasn't drilled for a scope mount from the factory.
This image is a 340 that isn't factory drilled for a scope mount, but is drilled for mounting of a peep sight to the receiver.
A factory drilled rifle will have the woodline of the stock drop lower along the receiver. You'll also find a lot of 340 rifles that were D&T for a scope mount where the mount holes were drilled through the factory roll stamping on the left side of the receiver. A factory drilled receiver will have the mounting holes below the roll stamping like this rifle.