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Old January 28, 2013, 05:55 PM   #1
o.g.g.
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The Model 70

I own a Winchester Model 70 in 30-06. I purchased it new around 1996, and have used it very little, as the cartridge just doesn't interest me.

Does anyone know if a gunsmith could refit this rifle to accept the 300 H&H Magnum round? What would need to be done?
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Old January 28, 2013, 06:02 PM   #2
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That rifle's receiver won't handle the .300 H&H round as it's too long. Win.70 receivers that did had a longer magazine cutout to hold the longer magazine needed. Years ago, I compared my pre-'64 Win. 70 .300 H&H to my .270 Win. one and they are different in that area. Don't know if the standard receiver could be remilled out to accept a H&H magazine, follower and follower spring. Remilling the bolt face plus replacing the extractor is easy.

You could probably rebarrel or rechamber it for one of the newer short 30 caliber magnums, or even a .300 Win. Mag., but if the H&H one's what you want, there are issues to overcome.
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Old January 28, 2013, 06:04 PM   #3
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IF AND ONLY IF this could be done, it would require lengthening the action (I doubt it could be done due to this alone) and enlarging it for the fatter case, along with rechambering, magazine modifications, bolt modifications, etc... Personally, I would sell it and get a CZ550 action for the job.
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Old January 28, 2013, 06:22 PM   #4
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What are you talking about?

Model 70s were offered in 300 H&H from the factory, there is no need to lengthen the action or modify the action for a fatter round. Yes, the magazine needs the longer box, the bolt stop needs to be modified, the bolt face opened, and the chamber needs to be opened up. Piece of cake. I would recommend a 300 Win Mag, but if you want the 300 H&H, get it.

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Old January 28, 2013, 07:15 PM   #5
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Model 70s were offered in 300 H&H but its a bit longer then the standard action.

I just looked at my 375 H&H M-70, and compared it to my other Model 70s.

Not gonna be easy, a lot of machining.

May I ask why the H&H and not the 300 Win? The 300 Win would just require opening the bolt face and running a chamber reamer in your existing barrel.

The 300 H&H isn't going to give you that much more then the '06 with modern components.
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Old January 28, 2013, 08:49 PM   #6
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Yes, you may ask, but I'm not sure of the why.

I do already own a .300 Winchester Magnum.
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Old January 28, 2013, 08:56 PM   #7
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Just magazine work and opening up the bolt face. I dont know why you would want an H&H, but I dont know why I want some of the weird chamberings I have either.
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Old January 28, 2013, 09:27 PM   #8
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I would go for a .300 H&H over a .300WM just for the classiness of the cartridge, the old school flavor with modern performance, the feeling maybe, just maybe, I could grow a mustache and get a pith helmet and tour Africa...
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Old January 28, 2013, 09:48 PM   #9
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Not enough sugar for a dime. Spend the money on a new 300 RUM, or a 338 RUM if you want a different answer to the why.
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Old January 29, 2013, 04:50 PM   #10
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With careful handloads a 30-06 will come close to 300 H&H loads from the factory.

If you just want something differnet, and with what you have, my first choice would be 338/06. A 35 Whelen or 280 would also be good options.
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Old January 29, 2013, 09:30 PM   #11
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You can make a 458 Win Mag on the '06 length chamber if you want something different,

Might Kick a bit, mine does.
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Old January 29, 2013, 09:35 PM   #12
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You can build pretty much anything you want off the action.
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Old January 29, 2013, 11:16 PM   #13
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It's just a push feed action.

It's already a perfectly good 30-06.

Sell it as it is and buy a better rifle in the chambering you want.
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Old January 30, 2013, 12:17 AM   #14
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Holds one less round in mag and requires a magnum follower as well. Magnum brass for any caliber is going to be very expensive.
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Old January 30, 2013, 01:17 AM   #15
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The 300H&H is like my `71 Norton -- a classic that turns heads whether moving or stopped..
It's also like any other British [automotive] product -- an inefficient wrench queen by today's engineering standards.

With that slightly-bent analogy in mind....
Rechamber for the 300WinMag and be better off all round.
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Old January 30, 2013, 08:58 AM   #16
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might be a perfect candidate for a Ackley improved 30 06. simple re-chambering job.would equal 300 ouch and ouch without the head aches of brass etc. just a though, bobn
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Old January 30, 2013, 11:58 AM   #17
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Quote:
It's just a push feed action.
No, it is not.

Quote:
Magnum brass for any caliber is going to be very expensive.
I already have the Cartridges for this.

Quote:
With that slightly-bent analogy in mind....
Rechamber for the 300WinMag and be better off all round.
As mentioned above, I already possess a .300 Winchester Magnum.

Quote:
might be a perfect candidate for a Ackley improved 30 06.
Might be a lot of things, but I'm only interested in one of them. So...

Quote:
You can build pretty much anything you want off the action.
or

Quote:
That rifle's receiver won't handle the .300 H&H round as it's too long.
You guys simply kill me.
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Old January 30, 2013, 12:56 PM   #18
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The 300H&H is about ¼ longer than the `06.

Will the magazine (much less the receiver ejection cutout) handle that?
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Old January 30, 2013, 02:34 PM   #19
reynolds357
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Ok OGG, since you dont like my advice I will alter my opinion. You can not build anything off your model 70 action except a .30-06. You cant even build a .270 Win. It was made an 06 and it can never change.
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Old January 30, 2013, 02:38 PM   #20
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Hey guys...,
It's only a minor difference

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Old January 30, 2013, 02:52 PM   #21
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If you really don't like the 30-06 why not re barrel for the .338-06. You get a heavier bullet without the sinus clearing recoil and more thump on the target, win win. Personally I would just up it to 8MM-06 for the accuracy advantage but that's just my druthers.

Or you could go WSM or WSSM with less work involved in the rebuild and still get your magnum load.
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Old January 30, 2013, 05:36 PM   #22
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Quote:
The 300H&H is about ¼ longer than the `06.
Will the magazine (much less the receiver ejection cutout) handle that?
Just in case you did not read my post above.
Quote:
Model 70s were offered in 300 H&H from the factory, there is no need to lengthen the action or modify the action for a fatter round. Yes, the magazine needs the longer box, the bolt stop needs to be modified, the bolt face opened, and the chamber needs to be opened up. Piece of cake. I would recommend a 300 Win Mag, but if you want the 300 H&H, get it.
But just to make sure, I will submit that if the rifle was offered by the factory in 300 H&H, the cartridge fits the receiver. Yes, you need to put in a longer magazine box. If the guy wants a 300 H&H, it's OK. Really!
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Old January 30, 2013, 07:24 PM   #23
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One of those Kodak Moments:



(NOTE: The 300H&H and the 375H&H are the same length)

.

Last edited by mehavey; January 30, 2013 at 07:35 PM.
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Old January 30, 2013, 07:47 PM   #24
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Just find one of these, then you could keep your 30-06.







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Old January 30, 2013, 08:24 PM   #25
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"you guys simply kill me"

hmm, here I thought it was fun to yak about all the possibilities....bobn
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