I've been doing some research into making my .270 Win into a .270 RUM (.300 RUM necked down) and so far I've talked to about 8 smiths and about half of those think it's possible. So I'll probably just buy a reamer and my local smith and I can tinker with it until it works...

Right now I'm running a 26" 1/10 Krieger so I'll stick with 150gr VLD's, hopefully push them around 3400-3600fps. But, since I will have the reamer, a 30" fast twist .270 may come one day too!

Stay tuned, should be a fun project!!

The 270-RUM would be cool. How many smiths have told you the 270-RUM would be too much "over-bore"?
How much velocty do you expect to gain over the 270-Weatherby?

Keep us posted on your progress.

Only one smith said its overbore, then I told him about a .270 based on the .338 Lapua and now he thinks that one is waay overbore!!

Not sure how much over a Weatherby, but I'm guessing at least 200fps plus without the free bore and not using expensive Weatherby brass...

http://www.survivalmonkey.com/forum/...ts-2007-a.html

270 Allen Magnum
300 Rem Ultra Magnum parent case, necked to 270 and fireformed to min body taper and sharper shoulder angle.
130 gr.(3800 fps) up to 169.5 gr ULD RBBT(.740 bc) 3300 fps in 27” barrel length, 3400 fps in 30” barrel length
Designed for game up to 500 lbs at long range, deer and pronghorn out to any range a shooter can place the bullet in the vital zone of his target.
Appropriate powders: H-870, H-US869, AA8700 and WC872


277 Allen Magnum
338 Lapua Magnum parent case, necked down to 270 and fireformed to min body taper and shoulder angle.
140 gr.(3750 fps) up to 195 gr ULD RBBT(.920 bc) 3250 to 3300 fps from 28 to 30” barrel lengths
Designed for long range precision big game hunting. Usible on game up to and including elk and moose even out to 1000 yards.
Appropriate powders: H-US869, H-870, AA8700 and WC872


Read more: http://www.survivalmonkey.com/forum/...#ixzz1Dmhltyl7

Well, my 300RUM's lasted on average 1000 shots before heat cracks in the neck, 270???

RIbadazzz, I'm not going the AM route. I already talked with Kirby, he's waaay to busy plus doesn't want to convert my Sako to a magnum bolt face.

BC, I'm not worried about barrel life...gotta give up something to gain something

Well, without going downstairs to check book specs, I was wondering about opening up the bolt face... guess so...

.277s never made much sense to me

Yea I need to go mag with it, but since its a Sako action it already has a Sako extractor so it will need modded...


If I make it back out to Nebraska next year, I'll try to change your mind!

Me niether, a .284 is a better way to go, much better bullet selection and there is already a 7mm Ultra Mag. but to each his own, I would love to hear how it turns out for you.