9.3x62 and Big Game

[brianb]

Anyone have any recipes for NP and AB for a 9.3x62 and Ramshot Big Game and Alliant Powerpro 2000MR?

I've got a data sheet from Western Powders that shows a max load of 63.5gr/2625fps and 62gr/2550 fps for AB/NP, respectively. I can believe the velocity for the AB, but I don't believe I've ever heard of a 286 gr bullet over 2500 fps. That's smack dab in the middle of 375H&H territory with 300 gr bullets, as least as published in Nosler #7 and #8

My first batch was Hornady 286 with 62gr Powerpro 2000MR, for just a skosh north of 2400 fps.

 

[Dwh7271]

Granted, different forum, but this is about the most comprehensive 9.3-62 data I know of.
Mods, delete if inappropriate.
Congrats on a great cartridge!
https://www.24hourcampfire.com/ubbthreads/ubbthreads.php/topics/11681875/1

 

[truck driver]

Dewey;
That's some good stuff there. If I had saw it before i got my 35 Whelen I probably wouldn't have it.

 

[Thebear_78]

I’m getting 2460fps with 286gr Partition and big game. Great performance on moose.


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[Dwh7271]

Dewey;
That's some good stuff there. If I had saw it before i got my 35 Whelen I probably wouldn't have it.

Ha.
Maybe you need a 9.3 x 62 too? :grin:
Just kidding, but it is a terrific cartridge.

 

[truck driver]

Dewey;
That's some good stuff there. If I had saw it before i got my 35 Whelen I probably wouldn't have it.

Ha.
Maybe you need a 9.3 x 62 too? :grin:
Just kidding, but it is a terrific cartridge.

If I didn't have the 338wm I would consider it in a nice M70.

 

[brianb]

Thanks for the input, gentleman. DWH, that's exactly what I was looking for. If anything, the Western Powders data sheet I have seems to err on the side of caution for the loads, and over-estimates by a bit on velocity, which is fine with me.

Ramshot, Alliant, and Hodgdon...better living through chemistry.

 

[TXbaldhunter]

I use Big Game in my 338-06 and 30-06 with great results.I don't have a 9.3x62,but it should work as one of the slower burning powders for that cartridge.Here is a link to a site that writes about the 9.3x62.
https://www.ballisticstudies.com/Knowle ... n=(organic)|utmcmd=organic|utmctr=(not%20provided)&__utmv=-&__utmk=55917739

 

[Dwh7271]

If anything, the Western Powders data sheet I have seems to err on the side of caution for the loads, and over-estimates by a bit on velocity, which is fine with me.

Just a thought.
Remember you're dealing with a 100 plus year old cartridge. Many of the books and recommended loads probably err on the safe side.
It was originally loaded to around 2100 fps w a 285 then juiced up a little to around 2400. I'm sure many of the guides probably take the 56500 psi into account when making guides.
Barsness pressure tested a couple of the loads in the post to 60k or below. I would think in modern rifles should be no big deal but might be hesitant to run them in an original.
As I said, just a thought.
Fwiw, I run the Big Game powder load Barness posted in mine. Pretty much duplicates his findings. Mine is on a Model 70 action.

 

[TXbaldhunter]

In one of John Barness's book he writes around 65.0grs of Big Game will get you around 2500fps with a 286gr bullet.

 

[SJB358]

In one of John Barness's book he writes around 65.0grs of Big Game will get you around 2500fps with a 286gr bullet.

That is a truckload of power right there.. Leaves nothing on the table in the real world to a 375.

 

[Cleveland48]

I use John Barnes data in mine. I’m running 285 grain ppu round nose with 65 grains of big game for 2490 fps in 22” barrel. I did work up too 66 grains, and it was over 2500 fps but can’t recall the actual speed. I also ran 286 hornady spire point with 59 grains of varget for 2410 fps. Turned into my favorite rifle to load for. It’s a great old round and using a lot of John Barnes data is loaded to around 60k psi and turnes it into a even more formidable cartridge.


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[TXbaldhunter]

That's a good amount of speed for a big ole bullet out of a 30-06 size case.

 

[Cleveland48]

That's a good amount of speed for a big ole bullet out of a 30-06 size case.

It is! Honestly don’t know why I try to hot rod it. It apparently did a fine job for over a century with factory loads.


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[SJB358]

That's a good amount of speed for a big ole bullet out of a 30-06 size case.

You aren't kidding there!