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Joined: Jan 2009
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Campfire Regular
Joined: Jan 2009
Posts: 2,999 |
dhg,
FWIW, I get 4 down in my box..
Just ran some 140 NBT (in the 284 Winchester)seated to 3.010" two days ago, feeding was purrrrfect..!
My hat's off to our own Redneck for getting this rig to the top of my list of favorite rifles..!
"I'd rather have an Army of Asses led by a Lion, than an Army of Lions led by an Ass." (George Washington)
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Joined: Jan 2007
Posts: 35,900
Campfire 'Bwana
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Campfire 'Bwana
Joined: Jan 2007
Posts: 35,900 |
For general all-round goodness it would be tough to improve on a 7/08.
The 280 Remington is overbore.
The 7 Rem Mag is over bore.
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Joined: Jan 2010
Posts: 625
Campfire Regular
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Campfire Regular
Joined: Jan 2010
Posts: 625 |
There is also the 6.5x55 improved that isn't too far behind the 6.5x.284, but doesn't seem to have caught on in the US. I have the 6.5 Rogue, which is simply a 6.5x55BJAI with a 37 degree shoulder. It's a great shooter and can come very close to the 6.5x284 speeds. Jeff
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Joined: Sep 2005
Posts: 4,281
Campfire Tracker
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Campfire Tracker
Joined: Sep 2005
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6.5x47 Lapua, 6.5 Creedmoor, 260 Rem
....in that order.
Alan
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Joined: Jan 2008
Posts: 7,721
Campfire Outfitter
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Campfire Outfitter
Joined: Jan 2008
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If I had an SA M70 laying around, I'd be looking awfully hard at a .284 (or one of the wildcats base upon it), 6mm or 6mm AI. 6-284........8 twist.
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Joined: Jan 2008
Posts: 711
Campfire Regular
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Campfire Regular
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I like my M70 Classic Featherweight in 7mm-08 a whole bunch. 120 TSX at 3100 make for little recoil, and very little tracking.
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Joined: Jul 2006
Posts: 2,736
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Campfire Regular
Joined: Jul 2006
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The smart choice would be to leave it alone. Failing that, next choice would be the plain Jane 7mm08. However, of late I've been fooling around with a 6.5x55 that I'm very impressed with. Just thinking out loud for you.
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Joined: Jul 2009
Posts: 8,923
Campfire Outfitter
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Campfire Outfitter
Joined: Jul 2009
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For Mark and Cocadori, the short action M70 is a 3.1" action, not a 2.8" action. Big difference. As it comes from the factory it's a 2.8" action. To make the longer rounds work you have to remove the magazine spacer, shorten the bolt stop and ejector, and rework the rear of the feed rails. It's not as simple as it sounds and the one time I did it with a .257 Roberts I never did get it to feed 100%. I'm sure a good gunsmith could get one to feed but it'd be much easier just to stick to a .308 based cartridge like a .243, .260, 7mm-08, 338 federal or 358 winchester. Do have pictures of the modifications or a link to the procedure?
Dave
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Joined: Jun 2004
Posts: 7,164
Campfire Tracker
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Campfire Tracker
Joined: Jun 2004
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I built a 6.5x55 on a short model 70 and it worked great. The 284 was a bit problematic but works OK once the feeding is sorted out. I just don't think a lot of the cartridge regardless of the bullet diameter it is pushing. Every one I have built over the last 35 years, has been built over my objections!
There has been a recent resurgence in the popularity of the 284 as a long range target round. When we tried it in 1980 it wasn't all that special and I don't think much has changed now. Given the choice, I would be inclined to go with a 7mm SAUM over the 284. If I was building a 6.5, I would go with the 6.5x55 or, for something a bit hotter, the 6.5 Remington Mag. This is all just mental exercise though since I won't be doing any of them! GD
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Joined: Mar 2005
Posts: 3,722
Campfire Tracker
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Campfire Tracker
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If I decided to go another route on the M70 SA, other than 284 Winchester, I'd go 257 Roberts or 6mm remington. Probably AI both.
Oops! See in the OP that cow elk is on the potential kill list. I'd feel obligated to leave AS IS! The .308 can still be fun. Heck, what's more fun than a cartridge that seems to shoot well out of everything and at most available bullet weights??
There's a lot of goodness in 165gr Accubonds, 165gr GameKings, and 150gr TTSXs. The list goes on and on!
Last edited by OldCenterChurch; 04/12/12.
WAR EAGLE!
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Joined: Mar 2005
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Campfire Tracker
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I like my M70 Classic Featherweight in 7mm-08 a whole bunch. 120 TSX at 3100 make for little recoil, and very little tracking. That WOULD be a sweet little combo (including bullet particulars)!
WAR EAGLE!
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Joined: Jan 2010
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"284" When we tried it in 1980 it wasn't all that special and I don't think much has changed now. I have to admit the evolution of better propellant has made the 284 Win a better cartridge today that it was in the 80's. How much better? That's another discussion all by it's self.  Jeff
"Blessed are those who give without remembering and receive without forgetting"
-Elizabeth Bibesco-
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Joined: Jan 2006
Posts: 2,977
Campfire Regular
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Campfire Regular
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Posts: 2,977 |
dhg,
FWIW, I get 4 down in my box..
Just ran some 140 NBT (in the 284 Winchester)seated to 3.010" two days ago, feeding was purrrrfect..!
My hat's off to our own Redneck for getting this rig to the top of my list of favorite rifles..!
Like Scott, I have a 284 win built on the SA M-70. Four down is not a problem, and it feeds fine. Like Scott, find a smith who is confident and experienced in working with this action and it would be a dandy. On the other hand the 7x57ai would also be in the same league and should work great in that action.
"Blessed is the man whose wife is his best friend - especially if she likes to HUNT!"
"Love the Lord your God with all your heart, soul, mind and strength, and love your neighbor as yourself. There is no commandment greater than these."
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Campfire Tracker
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The M70 SA was made for....the 257R!
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