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Thank you. I have a M70 338 that could be opened up and an H&H mag box put in. Might need to call my smith.


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It would be hard for me to break down a good .338 WM. cry lol

Gunner


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Originally Posted by gunner500
It would be hard for me to break down a good .338 WM. cry lol

Gunner


Same here Gunner. I would have never thought of it in the past, but my wife surprised me this past Fall with a Pre64 Model 70 338 Win Alaskan.

[Linked Image]

So, my M70 Classic is sitting at a gunsmiths right now. Waiting on some kinda barrel. Haven't ordered a barrel yet, but this seems like a great idea to me. I wouldn't ever get rid of the rifle, as it has a big past with me, but it won't get used much with the Pre64.

[Linked Image]

Thinking a 375 would give it a new lease on life?


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SWEET, with the pre-64 Alaskan in your mitts let the breakdown commence grin, that NH 338 would make a fine all weather/all game 375 AI.

And the Montana slings are something else we have in common, nice aint they. wink

Gunner


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Originally Posted by gunner500
SWEET, with the pre-64 Alaskan in your mitts let the breakdown commence grin, that NH 338 would make a fine all weather/all game 375 AI.

And the Montana slings are something else we have in common, nice aint they. wink

Gunner


I think so too! I love the rifle, just not as much as the Pre64!

Yeah, those Montana's are the best slings I have used yet! I love their belts as well.


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The 375 Weatherby cartridges fit in my 375 H&H AI. Obviously, the H&H does too. So, if I had to use factory ammo, either would work fine, I suspect. I had a box of 300 grain solid factory ammo (H&H) I paid $10 for (19 loaded and 1 once fired). A cousin that safari's a bit told me that was a poor bullet/load. It worked well for busting rocks and forming cases, however.

Why the AI? Because that was what it was when I bought it. I suspect that I bought it at a much lower price than if it were a standard H&H chamber. Besides dies came with the rifle. I'm not worried about what it will bring when it is sold, that will be one of my kids problems. From all the reading I've done the AI and the Weatherby are identical in performance. I have not had the experience to verify that.
The rifle I have is a pre-64 Model 70. The trigger is 3 lb and crisp. Shooting off the bench full power loads in it feels lighter than full power loads in the 375H&H I had. The 375 H&H went away. That stock on the M70 fits me to a "T".

I'll not likely go to Africa again. But this rifle might be used in Texas at a high fence ranch or maybe on a white tail doe. A guy just needs a rifle like this, just in case the opportunity rises. Meanwhile it's a fun rifle to shoot. grin


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I have the AI version on a P-17 Enfield that Winchester made. I fireformed brass with 4198 and cast bullets - no case failures. I have yet to run full tilt loads thru it as I can't get the stock to fit me correctly. I'll play with it this winter, if it is still uncomfortable I'll pull it off and start again. Nice thread, got me motivated to do something with mine.


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Originally Posted by Cowboybart
I have the AI version on a P-17 Enfield that Winchester made. I fireformed brass with 4198 and cast bullets - no case failures. I have yet to run full tilt loads thru it as I can't get the stock to fit me correctly. I'll play with it this winter, if it is still uncomfortable I'll pull it off and start again. Nice thread, got me motivated to do something with mine.

Once ya get the stock where you want it……you may, just may find that will be your only hunting rifle, unless you need something pretty specialized!

I too shoot cast bullets, or at least did……it’s been a while. I tend to push mine pretty hard with jacketed bullets or for the past 31 years or so. I do minimal sizing, only lightly “kissing” the shoulder enough to make chambering near effortless…..just a little resistance. I toss my brass after 10 firings. Maybe I could go longer if I annealed my brass. With components, especially brass getting difficult to get, I may start annealing, to hopefully extend my case life a bit.

My most recent load is with Barnes 270 grain LRX’s pushed to 3100 mv from a 24” barrel. I need to go out sometime soon at near zero temperatures to determine my velocity loss due to low temperatures!

Unless you plan on shooting at some pretty extreme ranges, I think that those LRX’s woul make a pretty darn good “all around” load for anything that I’ll ever hunt here in Wyoming! memtb


You should not use a rifle that will kill an animal when everything goes right; you should use one that will do the job when everything goes wrong." -Bob Hagel

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This is what my phone ap says with 250 gr TTSX

[Linked Image from i.postimg.cc]


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Bugger, The LRX’s are marginally slower….but have improved BC! Here’s my numbers, though the cold weather numbers may be a bit lower. memtb

[Linked Image from i.imgur.com]


You should not use a rifle that will kill an animal when everything goes right; you should use one that will do the job when everything goes wrong." -Bob Hagel

“I’d like to be a good rifleman…..but, I prefer to be a good hunter”! memtb 2024
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Keeping 2000 FPS till 850 is carrying some mail and should expand that big sucker.


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I hope to never “need” it at 850……but, it’s nice to have it available! 😉 memtb


You should not use a rifle that will kill an animal when everything goes right; you should use one that will do the job when everything goes wrong." -Bob Hagel

“I’d like to be a good rifleman…..but, I prefer to be a good hunter”! memtb 2024
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With a 375 AI or 375 Weatherby you won't need a 338 Win Mag. A 300g .375 bullet at 2800 fps should do everything a 338 Win Mag can and more.


Regards,

Chuck

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How many of you wankers shoot Ackley unimproved cartridges?


I am..........disturbed.

Concerning the difference between man and the jackass: some observers hold that there isn't any. But this wrongs the jackass. -Twain


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Originally Posted by DigitalDan
How many of you wankers shoot Ackley unimproved cartridges?

They all are till the firing pin meets the primer whistle


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Originally Posted by Sitka deer
John Ricks rebarreled a 700 for me with a 20", #5 SS Pac-Nor and I stocked it in a piece of Turkish walnut. It is likely the most accurate rifle I own. With 5/16" of cast at the heel and 1/4" at the toe and about 8 1/2# it is a kitten to shoot.

I have used it for a Kodiak bear (with Rick Bin and Muley Stalker) a number of deer and at least one black bear I can remember. I have been shooting 270gr XFBs in it and will change to the same weight TSX when the box runs dry. I have never recovered an X from it.

I get just a hair over 2700 with 74gr of IMR4064 in cold weather. There was no such thing as load development as the rifle is extremely forgiving. Though, it does not like the Failsafes I tried, at all!
art
I did not realize that was not a standard H/H that Leighton used. Cool.


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Originally Posted by beretzs
Originally Posted by DigitalDan
How many of you wankers shoot Ackley unimproved cartridges?

They all are till the firing pin meets the primer whistle



😂 memtb


You should not use a rifle that will kill an animal when everything goes right; you should use one that will do the job when everything goes wrong." -Bob Hagel

“I’d like to be a good rifleman…..but, I prefer to be a good hunter”! memtb 2024
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Originally Posted by memtb
Bugger, The LRX’s are marginally slower….but have improved BC! Here’s my numbers, though the cold weather numbers may be a bit lower. memtb

[Linked Image from i.imgur.com]

According to Barnes the 270 LRX BC is .449 not 541.

And lower the temps in fall- early winter to 40* or less in this area at 1200 feet ele. At 3100 fps is good for 500 - 550 yds for expansion.(+2000 fps)

Bob
www.bigbores.ca

Last edited by CZ550; 01/17/24.

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Originally Posted by CZ550
Originally Posted by memtb
Bugger, The LRX’s are marginally slower….but have improved BC! Here’s my numbers, though the cold weather numbers may be a bit lower. memtb

[Linked Image from i.imgur.com]

According to Barnes the 270 LRX BC is .449 not 541.

And lower the temps in fall- early winter to 40* or less in this area at 1200 feet ele. At 3100 fps is good for 500 - 550 yds for expansion.(+2000 fps)

Bob
www.bigbores.ca

If that is the case, the .424 of the 250 vs the .449 of the 270 would keep me using the 250 version.


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Originally Posted by CZ550
Originally Posted by memtb
Bugger, The LRX’s are marginally slower….but have improved BC! Here’s my numbers, though the cold weather numbers may be a bit lower. memtb

[Linked Image from i.imgur.com]

According to Barnes the 270 LRX BC is .449 not 541.

And lower the temps in fall- early winter to 40* or less in this area at 1200 feet ele. At 3100 fps is good for 500 - 550 yds for expansion.(+2000 fps)

Bob
www.bigbores.ca

Holy crap……I have no answer to that. I have no idea where I got that number. I can’t even say that I transposed numbers, or somehow got a line off.

I apologize to all for the bad info…..believe me when I say I’m a lot more disappointed than any of you! memtb

Last edited by memtb; 01/17/24.

You should not use a rifle that will kill an animal when everything goes right; you should use one that will do the job when everything goes wrong." -Bob Hagel

“I’d like to be a good rifleman…..but, I prefer to be a good hunter”! memtb 2024
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