Thread: Changing a Remmington 700 from .270 to .308

it's just a consideration at the moment. If I was to do this how difficult (ie expensive) and who would do it it ?

Greetings,
The two rounds have different magazine lengths so you could possibly run into feeding problems with the .308. It would be better to sell the .270 and buy a .308 or convert the .270 to .30-06.
GPM.

screw out the .270 barrel,screw in a .308 one..job done pretty much I believe,same bolt, mag length wont be an issue.
there are rebarrel quotes closer to grand...
you might get lucky and pick up good 2nd hand barrel for couple of hundy
agree 30/06 is logical choice

The US experimented with this with their M24 sniper rifle, in the form of being able to either use .308 (7.62x51) or a magnum caliber (.300WM springs to mind) on the same basic action and stock platform, just swapping the barrel and bolt out. In the end they elected not to do this, and the M24 has remained a 7.62x51 platform on the long action.

There are a few possible considerations with running the .308 length round on the longer action - including being able to seat the projectile out minimising the lost case volume when reloading with heavier projectiles which run into magazine length issues with the short actions. You can almost get up to .30-06 results with not losing case volume to the arse of the projectile. Also, the scope mounting can be slightly further apart on the long action as well, or you can possibly shift the scope further forwards if that's an issue. As well, due to the fact that a lot of the magnum rounds or long range rifles are on long action platforms there are often more choices for accessories in the long action size which is nice.

and unless the origonal barrel is poked..you will be spending $$$$ for not a huge amount of real world gain..... you can after all buy good 130-145-150grn loads in .270w that will do 99% of what you can do with .308 if not 100%
if you reload,there is nothing in it...why I sold the .308

Might just sell the .308 then. .308 is in my DNA, but really like the .270.
Life has become quite difficult all of a sudden

Originally Posted by turtleSO

Might just sell the .308 then. .308 is in my DNA, but really like the .270.
Life has become quite difficult all of a sudden

Own one of each and life is simple again. problem solved.

Originally Posted by turtleSO

it's just a consideration at the moment. If I was to do this how difficult (ie expensive) and who would do it it ?

I must admit I struggle with this one -why ??- I have shot a lot of deer with both - and I really rate the 270 on deer - at present I run a 308 but give me a handful of cash tomorrow and it would be a 270 like a shot - love that caliber- why ????

Trademe has a couple of cheap 308 barrels currently. A lot of target shooters ditch a 308 barrel that still has years of life as a hunting barrel, and all you need to do is push the chamber gorward, trim to length and recontour.

personal preferance?

Originally Posted by Ross Nolan

Trademe has a couple of cheap 308 barrels currently. A lot of target shooters ditch a 308 barrel that still has years of life as a hunting barrel, and all you need to do is push the chamber gorward, trim to length and recontour.

just as simple to make it 30/06 at same time....

used both and can't tell the difference...both go bang and have plenty of power

Originally Posted by Micky Duck

just as simple to make it 30/06 at same time....

Some .30-06 chambers need to go a long way forwards to clear the old .308 shoulder fully out and not end up with a ring showing on the cases. No real advantage though if you aren't restricted for mag length as most heavier .308 pills still project down into the .308 case even though it's a long action, so you don't gain the volume you think you would and with handloading with the pill seated out you can often gain a useful amount over the short action mag lengths which really narrows the gap to the .30-06.

I think that in a standard length barrel rifle staying with 270 would be the better choice. The best change on a long action would be to 280 AI surely ?

Just go 30 06, can always down load it to 308