Can anyone tell me the magazine length on a SA Model 70?

07 October 2005, 21:23

Mark in GA

Or the maximum cartridge OAL that will fit into a short-action Winchester Model 70 magazine? I know 2.800" has to work since that is the max COAL spec for 308 based rounds. How much room it there beyond 2.800"?

I am considering a project and I am looking to determine whether the SA Winchester will work to my satisfaction.

Thanks,
Mark in GA

07 October 2005, 23:08

ramrod340

I don't have one to measure but I was thinking it was in the the range of 3.125". But, I don't trust my memory on anything anymore.

08 October 2005, 01:22

Lawdog_Gary

I have a M70 Classic SA in .450 marlin and I am loading 500 gr. Barnes TSX bullets out to 3.13" and they fit in the magazine very nicely. If you need I will measure it when I get home tonight and let you know next week. Lawdog

08 October 2005, 02:46

Con

Mark,
My post 64 action also has a magazine block at the rear of the magazine, the longer OAL lengths may require that be removed? Not sure... just thinking out aloud. If I get some time today, I'll also pull the rifle out and measure. Also what cartridge are you trying to fit, maybe someone's done it already?
Cheers...
Con

08 October 2005, 05:45

vapodog

I have a M-70 SA and the longest round that will feed thru the action is 3.070

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10 October 2005, 06:52

dougw1969

quote:
Originally posted by Lawdog_Gary:
I have a M70 Classic SA in .450 marlin and I am loading 500 gr. Barnes TSX bullets out to 3.13" and they fit in the magazine very nicely. If you need I will measure it when I get home tonight and let you know next week. Lawdog

Gary, I would be interested in hearing more about this project. Can you give some details, like barrel length and maker? How much action modification was needed to make it work? Thanks in advance, Doug.

10 October 2005, 17:56

Mark in GA

quote:
Originally posted by Con:
Mark,
Also what cartridge are you trying to fit, maybe someone's done it already?
Cheers...
Con

I'm looking to build a short-action 257 Roberts.

Thanks,
Mark in GA

11 October 2005, 04:26

Lawdog_Gary

quote:
Originally posted by dougw1969:
quote:
Originally posted by Lawdog_Gary:
I have a M70 Classic SA in .450 marlin and I am loading 500 gr. Barnes TSX bullets out to 3.13" and they fit in the magazine very nicely. If you need I will measure it when I get home tonight and let you know next week. Lawdog

Gary, I would be interested in hearing more about this project. Can you give some details, like barrel length and maker? How much action modification was needed to make it work? Thanks in advance, Doug.

I bought the barreled action from Clark's three years ago. I had them install a 25" Shilen barrel. My gunsmith installed 2 leaf express rear & gold bead front sights, barrel band and did the hot blue. I stocked it with a Royal Arms magnum classic stock. Now I am in the process of building another bolt action .450 Marlin on a Weatherby Mark V action I bought. It too is wearing a 25" Shilen barrel and will have a Royal Arms stock. Send me a PM if you would like any further details. Lawdog

12 October 2005, 04:11

dougw1969

Thanks, Gary. I have a Classic SA that I want to have rebarrelled. .450 Marlin is what I have been thinking about having done.

12 October 2005, 23:38

Lawdog_Gary

quote:
Originally posted by dougw1969:
Thanks, Gary. I have a Classic SA that I want to have rebarrelled. .450 Marlin is what I have been thinking about having done.

You're welcome and I wish you well with your project. The .450 Marlin really shows it's stuff when chambered in a bolt action. If you would like any load information just PM me. Lawdog

P.S. - Oh, by the way, I measured the magazine on my SA and it came out to 3.234".