Caliber Conversion

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rcathey714
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Caliber Conversion

Post by rcathey714 »

Hello all!

Has anyone ever done or seen a caliber conversion done on a 8 or 81? The rim diameter is .460" which is conceivably modifiably close to the 30-06 rim of .473". If possible to shave off that extra .013", that opens the bolt face up to a huge range of different calibers.

Thoughts?
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Hardrada55
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Re: Caliber Conversion

Post by Hardrada55 »

I always thought I would like a Remington Autoloader in .401. Rim diameter is .457.
...the right of citizens to bear arms is just one more guarantee against arbitrary government, one more safeguard against the tyranny which now appears remote in America..."
- Hubert H. Humphrey, "Gun" magazine, Feb. '60
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Phyrbird
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Re: Caliber Conversion

Post by Phyrbird »

Check your rim diameter for 300Sav, Veerrlly Interesting 8-) :!: :!:
Wanna make a small wager the 300S has a different bolt face than 35R or 25,30,32 Rem? I have a 300S bare bolt, it;s larger ID in the face than all the rest. 308 can be resized to 300S. HHHMMM, Vellrryy INteresting :ugeek:
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81police
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Re: Caliber Conversion

Post by 81police »

I've seen a few caliber conversions. Off the top of my head...

250-3000 Savage
308 Winchester
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rcathey714
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Re: Caliber Conversion

Post by rcathey714 »

Very interesting about the bolt head size on the 300 Savage. I own an 81 in 300 savage that's currently sporting a 35 Rem bolt head :shock: . Shoots just fine though haha. I'll have to do some measuring on that.

The main reason I bring this up is that I would really like to shoot my Model 8 more but that 35 Rem is a tricky booger to track down these days!!
rcathey714
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Re: Caliber Conversion

Post by rcathey714 »

What about a handgun round? Anyone know of one that might work?

Since the 81 I mentioned before is clearly a Franken-Gun, I wouldn't be opposed to a little experimentation -instert mad scientist laugh here-
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81police
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Re: Caliber Conversion

Post by 81police »

The '35' marking denotes the extractor not the bolt. 300sav & 35rem used the same extractors
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Phyrbird
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Re: Caliber Conversion

Post by Phyrbird »

10-4
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rcathey714
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Re: Caliber Conversion

Post by rcathey714 »

That's good to know about the extractor. Thanks for the tip! Does anyone have a link to one of these that has been converted into .308? I would like to read more about that.
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81police
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Re: Caliber Conversion

Post by 81police »

I'd be very leery of any 308 conversions. The 300 Sav is the hottest round ever offered in the 8/81 operating at a maximum of 46,000 CUP. Compare that with the 308 Win which operates at 52,000 CUP and you could be pushing the limitations of the 8/81 long-recoil action into dangerous territory. Maybe the dangers of higher pressures are offset by lighter bullets I don't know, but not something I'd be willing to experiment with...nor trust someone else's conversion. My 2 cents ONLY! :D :D
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Hardrada55
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Re: Caliber Conversion

Post by Hardrada55 »

I'm an oddball, but I've always thought it would be interesting to chamber a Model 8 in one of the Niedner cartridges, either .22 Rimless Niedner Magnum or, my fav, 6mm Rimless Niedner Magnum. Both based on the .25 Remington case. A barrel would be the problem.

https://www.riflemagazine.com/magazine/ ... artial.pdf
...the right of citizens to bear arms is just one more guarantee against arbitrary government, one more safeguard against the tyranny which now appears remote in America..."
- Hubert H. Humphrey, "Gun" magazine, Feb. '60
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81police
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Re: Caliber Conversion

Post by 81police »

Hardrada55, those calibers sound pretty cool...I've never heard of them before!
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norm
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Re: Caliber Conversion

Post by norm »

There is also the Lindahl chucker. A 22 based on the 25 Remington case. A few years ago Gun Digest had an article about Leslie Lindahl and his wildcat. Also had a picture of Townsend Whelan shooting prairie dogs with one. When I get home I'll look it up and post more information.
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