Could a Remington model 7 be rebuilt from New to a 35 Remington? And which caliber would be best for the project?

No caliber it comes in will work for a 35 Rem which has a smaller case than a 243 for example. If you start with a 223 or the like, then you have the aded drama of re-doing the bolt face.
New barrel.

I gather by now you know what I want it for ...how do I get there?
Want to build me one?
Or
I have a new in box Marlin 336 xlr 30-30 could that be opened up to the 35 Reminton? They were made in .35 too but after looking for 7 months for one I have given up.

Yes but it is much easier to buy one.

Remington actually did produce a small run of Model 7s in .35 Remington; I had one for a while and loved it and eventually was talked out of it (stupid me) by someone with a wad of cash who wanted to instantly rechamber it to .358 Winchester. As I recall, the bolt face was no different in diameter than for a 'standard' .308 case head and it did function flawlessly. That was also one of the motivations of the fellow who bought it to butcher. It would be worth trying a few 35 Rem cases in a standard bolt Remington rifle of some kind just to see.

We already know they will work; all the 35 Rems I build are on standard bolt faces, and in fact, most Swedish bolts will even work. I have done a few 35s.....

Indeed you have, and do a grand job of it too! I missed the last two words of your first post: "New barrel."

Doc, .223 Rem 700 take-off barrels, and the like, can be found for cheap and are identical to Rem 7 tenons. Buy a model 7 with .473" bolt face and cheap take-off and have the barrels swapped and rebored. Hawk the old barrel to recoup some costs and in short order you'll have what you're after.

I remember being told some years ago, by Danny Pederson, that he really didn't care to bore and re-rifle hammer forged barrels. Said irregularities can be found in some and they're too hard on tooling. He'd refer to bore & re-rifle a custom barrel that had originally been button or cut rifled because of the consistency of the steel. Easier on tooling and you get a better job, overall.

You will quickly find that Remington take off barrels are salable only as circus tent stakes; no one wants them; I have a pile of them to prove that.

yes, likely -- though a 308 to 358 would be an easier path, due to bolthead and cases

quote:

Originally posted by dpcd:
You will quickly find that Remington take off barrels are salable only as circus tent stakes; no one wants them; I have a pile of them to prove that.

I 'donate' mine to the scrap steel bin at the machine shop so they don't pile-up around my shop.

quote:

I have a new in box Marlin 336 xlr 30-30 could that be opened up to the 35 Reminton? They were made in .35 too but after looking for 7 months for one I have given up.

Does it have to be a Remlin xlr? If an older JM Marlin will do come to the next gun show in Oaks, PA. I always see a few for sale at that show. Normally in the $400-$500 range. Just do a search on "Eagle Arms gun show" to see the schedule.

He wants one with a 24 inch barrel; the A version made in the 50s, and again in the I forgot; later. Like in the 80s. or 70s. 90s maybe.

As for a Model 7, a 308 to 35 remington would be super easy. Same as for a 358.