Home Forums Hunting & Shooting Gunsmithing 30-06 to 240 Weatherby Conversion Opinions

I've got too many, if that's possible, 30-06 rifles and am contemplating re-barreling one of them. While browsing through my Nosler reloading manual I see that the 240 Weatherby shares the .473 bolt face with the 30-06. Most of the case dimensions are pretty close. I would be using a Winchester 670 action. Is this a viable conversion or would I be asking for problems? Thanks for any opinions from those who know about this stuff.

Should be good go.

You may want to consider a 6mm-06 also. Use 25-06 brass ( less expensive ) necked down. Not certain on cost of dies.

Do you have a complete Winchester M670 or just an action?

If its a complete rifle it makes no sense to throw away the value of it's barrel and assembly.

Instead consider selling the Win. 670 and buying a rifle chambered for what you want.

I have the complete rifle with the original factory wood stock and a Ramline synthetic. I just kind of want something different. The 6mm-06 sounds like a good option and get the barrel set up for the longer, heavier bullets, and contoured to fit my existing stocks. Kind of like a 243 on steroids. Yeah, I know, I'm a looney. Just some thoughts rolling around on a cold winter day.

Yea,

I am trying to get through the winter as well. It's windy out now and 34F!

The thing is that the Win. 670 is not all that hot of a gun, you know like its stock, etc. It cost real money to rebarrel a rifle.

Shop around some at gun stores and on the net.

I went to a gunshop yesterday and there were so many there that we were parking on the driveway, edges etc. Cabin fever it seems.

One place to look for the work you asked about: http://www.itdcustomgun.com/index.html

Should feed and function just fine.

I've got two 240 Weatherbys...One in a mark V the other on a winchester M70...love the caliber, just gotta load for it. Costs too much to shoot otherwise! While a 6/06 ballistically is its equal, I've had no problem aquiring brass...either new or once fired from those who do not reload. And I prefer my cartridges to have an accurate headstamp.

I like my Catbird,6mm-270Winchester,shoots 105grAMAXS EXTREMELY WELL,FASTER THAN A 240 WEATHERBY.

Should work great.

I have a .240 Wby. If I was doing a build from the ground up, I'd go with a 6mm-06 or a 25-06, assuming you're a handloader. Wby .240 brass is around $1.50 per case, 25-06 brass cost about 1/3 as much. I have CH4D belt forming dies to make .240 Wby brass out of 25-06 brass and it works pretty well.

The 6mm-06 has slightly more case capacity than the .240 Wby. and may edge it in performance. The 25-06 will do about the same thing with light bullets and can shoot heavier bullets, thus a more versatile round.

IMHO,

DF

Re-barreling to 240 Wby is just a simple barrel job for you rifle. Everything will work just fine. I re-barrel my Ruger 77 LH 30-06 to 240 Wby and every deer i have shot has dropped within 20 yards . I use Rel 22 and the 95 gr Hornady SST. 6MM-06 is a good option if you can find dies. Midway carry them but are always out of stock , plus they are around 150.00 a set.

I didn't realize that 6mm-06 dies were that expensive. With the .22-204, one can move an S type Redding sizing die up or down one caliber with altering the die body. I used a .204 die, changing out the decapping stem assembly for .224 and it works great. So, what if a 25-06 S type Redding FL sizing die was altered to 6mm-06 by changing the bushing, would that work?

If $150 dies were the only alternative, I'd make my new 6mm-06 a .25-06 and never look back.

IMHO.

DF

bea,

Have you tried 80 gr. TTSX's and 85 gr. NPT's? Those shoot great in my .240 Wby. I have 95 gr. SST's but was worried that they may be too explosive on deer at those velocities.

Was wondering how the SST's compare to other bullets.

DF

Did a build (PacNor) on a Yugo 24/47 action and it's an honest half minute rifle with 95 grain Noslers and IMR 7828 powder. It did OK with a variety of Reloader 22 loads but really came to life with the 7828. An excellent cartridge at the range, but I've not put it in the field yet. I've been very happy too with a 6mm 600 Remington. But the wife took that one away from me.