Pre-64 Model 70 in 6.5-06 AI

[Danny1788]

Sounds like a 6.5-284 is what your after. I've built some on LA with longer freebore and they work great. No need to do all that brass work for nothing. Or a 6.5x55 Swede? All would work in a LA m70

 

[Gord0]

6.5x55 ai with the correct throat length would be about exactly what you're looking for. Lapua brass is also cheap for it.

 

[redneckclimbing]

Thanks for the replies! I had actually forgotten about the 6.5x284. Does anyone have any experience with one in a LA model 70? How many would fit in the mag box?

Looked at the 6.5x55 AI, could work but how would that Lapua brass handle about 62000 psi? Any experiences here?

 

[Gord0]

Thanks for the replies! I had actually forgotten about the 6.5x284. Does anyone have any experience with one in a LA model 70? How many would fit in the mag box?

Looked at the 6.5x55 AI, could work but how would that Lapua brass handle about 62000 psi? Any experiences here?

It would handle it the same way it handles it in every other cartridge, just fine. If you were running a weak action then I'd worry, but there's nothing weak about a pre 64 model 70!

 

[redneckclimbing]

It would handle it the same way it handles it in every other cartridge, just fine. If you were running a weak action then I'd worry, but there's nothing weak about a pre 64 model 70!

Any personal experience with this Gord0? There is a big difference between 51-55k psi and 65k psi. I would hate to be loosing primer pockets after two firings? If you cut a case in half you will see a difference in the web designs of different cartridges. Not to mention you would still be giving up a fair amount of case capacity for no real reason.
Some of you are correct, this won't be something that wows the world! But it will be fun, and that is part of it as well!

 

[FEENIX]

Sounds like a 6.5-284 is what your after. I've built some on LA with longer freebore and they work great. No need to do all that brass work for nothing. Or a 6.5x55 Swede? All would work in a LA m70

There is something nostalgic about the 6.5x55 Swede, which has around longer than our venerable .30-06 . I have a Carl Gustaf M1894 carbine in 6.5x55 that I started both my boys hunting with at age 10.

 

[redneckclimbing]

I rebarreled a pre-64 win to the 6.5 Sherman case, it feeds ok but not a slick as the push feed M70.
I can throttle it down to 6.5 284 territory if needed.

Cliff,
Would you still recommend one? Or would you go with a shallower shoulder?

Also, would it be possible on your rifle (a standard LA) to use the H&H extractor ring to gain some bolt travel and therefore basically run a Sherman at it's full potential?

 

[redneckclimbing]

Sounds like a 6.5-284 is what your after. I've built some on LA with longer freebore and they work great. No need to do all that brass work for nothing. Or a 6.5x55 Swede? All would work in a LA m70

Danny, can you fit three or four in the mag box with the 6.5x284?

 

[CliffM]

Cliff,
Would you still recommend one? Or would you go with a shallower shoulder?

Also, would it be possible on your rifle (a standard LA) to use the H&H extractor ring to gain some bolt travel and therefore basically run a Sherman at it's full potential?

Had to look up the extractor ring, mine already has it. Rich has the reamer designed so the bullet seats right to the base of the neck. I am on my second barrel, wouln't change a thing.

 

[Gord0]

Any personal experience with this Gord0? There is a big difference between 51-55k psi and 65k psi. I would hate to be loosing primer pockets after two firings? If you cut a case in half you will see a difference in the web designs of different cartridges. Not to mention you would still be giving up a fair amount of case capacity for no real reason.
Some of you are correct, this won't be something that wows the world! But it will be fun, and that is part of it as well!

I don't have any first hand experience with the 6.5x55 ai, but did research it quite a bit for a Mauser project I have sitting in the safe. The Lapua brass from the research I did doesn't have any issues. The European loads for standard 6.5x55 are quite hot to begin with.

 

[redneckclimbing]

Nice!

 

[redneckclimbing]

Had to look up the extractor ring, mine already has it. Rich has the reamer designed so the bullet seats right to the base of the neck. I am on my second barrel, wouln't change a thing.

Cliff, what is the COAL of your rounds? And are you starting with .270 Win brass? If npt which brass are you starting with, and is it a single step to re-size, then just fire-form? What I'm asking is do you have to neck out the brass and then form a false shoulder such as with a Gibbs cartridge?

 

[CliffM]

Cliff, what is the COAL of your rounds? And are you starting with .270 Win brass? If npt which brass are you starting with, and is it a single step to re-size, then just fire-form? What I'm asking is do you have to neck out the brass and then form a false shoulder such as with a Gibbs cartridge?

I can go as long as 3.420, but 3.385' seems to shoot real good with most loads.I use Norma .270win brass. One stroke to neck down and form the false shoulder. I have also used .280 brass, same process.

 

[redneckclimbing]

I think you guys are really selling me on the Sheman, that's a whole lot of performance in a pretty small package, and an extra round in the magazine never hurt anyone! Thanks for the info./advice!