Home Forums Hunting & Shooting Custom Rifles & Wildcats Can I turn a REM 700 .270 Win into a 7mm mag

I have a Rem 700 in .270. It has a custom 24" Magnum size barrell on it that I would like to have drilled out to a .284 but be able to leave everything else the same. Is this possible? Or do I need a new bolt and receiver. I would eventually like to get a one piece machined bolt

New bolt or open up your current bolt face.Id probably rebarrel instead of rebore.

I think most of the places that rebore request that the new bore size is 2 calibers larger than the current. I.E. .277 to .308, or .308 to .338. I would just go ahead and buy the one piece bolt with the correct bolt face and a mini-16 extractor already installed.

John

Why not rebarrel to 280ai.can load to mimic 7mm

It would be much faster, less expensive and endure less risk to sell that existing barreled rifle as it is and buy another rifle the way you want it!

Easier and cheaper to open up the bolt face and rechamber to 270 Weatherby Mag.

As stated above, reboring usually isn't done for less than 2 calibers to clean up the barrel and cut new rifling. Buying a new barrel and having it installed will run in the neighborhood of $450-$650 by time you're done and if it is CM it will still need to be blued. Add another $150 or so.

Bob

The factory 7 Mag barrel is the second most popular tomato stake in the world. 06 being the first.

If you had to spend more money than just tripping your rig and buying what you want then a 7 mag barrel for the cost of shipping could most likely happen. Its a place to start. Bolt face m16 extractor rail work mag box and follower.

Or sell your 270 and buy a new mag ss action with the money.



W

I'll echo the sentiments of some of the other guys here...you can open up the bolt face of your current action if you want...I wouldn't rebore and can't think of many companies that would rebore such a small difference in calibers. Rechamber to .270 Weatherby or rebarrel.

Another option though...you could probably go on Gunbroker and find a complete M700 in 7mm Rem Mag for less than the cost of all the smith work to change your current action over. It was one of the MOST common chamberings a few decades ago so there's a bunch of them out there. Not uncommon to see them for less than $400 (sometimes way less).

True rifle loonies don't rebuild...they add to the collection.

I absolutely love the idea of turning this rifle into a .270 weatherby mag. That would be sweet. Thank you for that Sheister. Now, who is the most affordable Smith I can send this rifle to?

I just spoke with a Smith and he suggested a PGT one piece bolt which I was going to get anyway. He acted like it was a simple task.
This is my primary elk hunting rifle and a .270 weatherby mag will be the bomb.The cool thing is I already have a custom 24" magnum barrel on the rifle.
Totally cool thx for the idea,
Rod

Think about a,270 sherman. You don't have to change bolt face. Just cut new chamber in current barrel. Same velocity an easier to find brass

Sell it and buy a 7 RM.

Heckofalot cheaper!

But not as fun............

The 270 Bee is a really nice round.

Turning a 270 into a 7RM strikes me as a good way to spend a bunch of money to take a small step sideways.

If you reload, there are some new design 270 bullets that will enable the 270 to surpass factory 7RM ballistics downrange...on paper.

If you don't reload, then I see even less reason.

If not a reloader the better option is to save up $400 and buy a 6.5 Creed.

If a reloader, I'd still go Creed.

The Creed is the Poor Man's 270 and the Rich Man's 7mm Mag.

Can those 270 bullets that surpass the 7mag be stabilized in a factory 270?

Ziggy. You never said what was lacking from the gun or what exactly you wanted to have when done....

How does it shoot now? Weight? Who's barrel? Twist? Stock? May be as-is works for someone else much more than it works for you. Things to consider..

W

Lot of contradictions in that post.

I don't understand how people can honestly think "as a reloader I can make a .270 / .280 match a 7mm Rem Mag."

As a reloader, you would be able to make the 7mm Rem Mag outrun any .270W or .280R. If he is trying to accomplish some longrange work, the twist restriction in the majority of .270 barrels will limit which higher BC bullets can be used....and there is a far greater selection of high BC bullets in .284" currently than in .277". If he is trying to get higher SD (therefore heavier) bullets up to a given speed, then the '06 case won't compare to the modified H&H case just because of powder capacity (comparing same or very similar calibers).

But the OP never said why he was looking to change...just said he wanted to. His later response about liking the suggestion of the .270Wby tells me he probably just wants more "oomph" whether for heavier bullets, more speed, or whatever...the OP hasn't stated a reason. Maybe he's just bored with the .270W?

How the hell the Creed ever got brought into this as a "better" solution makes no sense. What is it a solution to? The OP never even stated the problem.

The Creed is the poor man's .270? I challenge anyone with a Creed to compare feeding costs with a .270 if hunting on a budget is a concern. With all the cheap hunting ammo out there available for the .270, as well as cheap rifles, it won't even be a comparison.

280ai

If budget is a big deal then why go changing around an intact rifle in the first place?