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g5m Offline OP
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Gents, do you all see much good reason to convert a 9.3x57 to a 9.3x62? It's an easy conversion (rechamber and probable glass bed) but it seems to me it's about like converting a rifle in 8mm Mauser to 30-06. A bit more fps (100-200?) and that's about it. Am I looking at this wrong?

Last edited by g5m; 07/22/09.

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It would depend on a whole host of things. If it were a Husqvarna "M98" that had been drilled and tapped and modified to be "current", then converting it to 9.3x62 would be useful, because you could pick up probably 400 fps with 286 gr bullets. If it were a pristine rifle, then maybe not. If it's a Husky "M96", like mine, then I would say leave it shooting the cartridge it was built for. Their rifles are quite strong, but that's still pressing the development, in my opinion.

And since I can shoot 250 gr Woodleighs at 2300 fps, I think my 9.3x57 works just fine for hunting.

By the way...your title is a little confusing, because I have a 9x57 too, and have never heard of a 9x62.

Dennis


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Sorry, I meant 9.3.

And, thanks for your info.


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I have read that some 9.3x57 chambers are oversize in the neck area which, when reamed to 62 will leave a step in the neck (and the fired case). Might want to have a chamber cast made and measured if you decide to ream it.

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Thanks. Will look at that.


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The 9.3 X 62 is a whole lot more useful in the field. I indtend to do just such a conversion.


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That depends on what you're shooting with it and how far away it is... grin.

It is a good bit more powerful, which may or may not be more useful.

Dennis


"The more you run over a dead cat, the flatter it gets."

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if it is a small ring mauser you might find some 9.3x62 factory ammo to long to fit in the magazine.


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advntrjinky,
Why would that be, a small ring is the same length as std. Mauser designed around the 8x57 cartridge and more than suitablel for the 9.3x62 which is basically 06 length.????

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The 9.3x57 or 9x57 are balistic twins to the proven .358 Win. and thats high praise...

The 9.3x62 is darn close to a balistic twin of the 375 H&H in that I can get 2400 FPS with a 320 gr. Woodleigh in the 9.3 or 2500 FPS a 300 gr. Woodleigh in my .375 H&H, based on the way I load them both. That boils down to a 20 grs. more in the 9.3 or 100 FPS more in the 375, a pretty fair trade off to equal IMO...

Take your pick..The 9.3x62 is considerably more powerful, but power only works if you have a need for it. I doubt that on this side of the ocean it would make much difference as I would not hesitate to shoot the biggest bear with a 9.3x57 or a 9x57 for that matter. In Africa I would feel some better with a 9.3x62.

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the 8x57 has a COL of 3.250" the 30/06 COL is 3.34". the magazine boxes in the LR mauser differ in the same way. the SR mauser can only take the shorter 3.250" catridges.....some factory 9.3x62 or 30/06 might fit the shorter mag box, but some will not (husqvarna did make SR in 30/06 and 9.3x62). Large ring mausers can come with either length mag box. the shorter LR mag box can safely be legthened to 30/06 length.....not so in the SR. all I am saying is to check the internal length of your mag box. if it is not 3.34" it will not fit a lot of factory 9.3x62 ammo, as it is loaded to fit the 3.34" bag box.

advntrjnky

ETA: the above is because the SR mauser is approx. 3/8" shorter than the LR, and most of that difference is in the mag box.

Last edited by advntrjnky; 07/23/09.

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How do these velocities look for the 9.3x62?

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9.3x57 just looks mean


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I have 2 M46 Huskies, both were 9,3x57 and both have been rechambered to 9,3x62! There is no step in the neck area or any problem what so ever! Husqvarna made many M46's in 9,3x62! They are a joy to shoot and spot on about the close equality to the 9,5 calibres! Enjoy, your conversion! Oh, and yes I do have a GEW 98 in 9x57, .356 bore!


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I have a Husky 96 in 9.3 X57.Restoked it to a German stalking rifle and put a Lyman receiver sight on it. It weighs about 6 pounds soaking wet. When you light the trigger off the bench due to the weight and stock design, it lights you up pretty well. This rifle is a joy to carry tho.It is about the same off the bench as my CZ in 375 H&H. No biggie

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I wouldn't convert a nicely balanced stalking rifle in 9.3x57 to 9.3x62; you already have something very nice, so why change it? What game are you hunting that the conversion would be useful?

That out of the way, I took a plain-Jane H&R 330 (FN98) action and rebarreled (25.5 inch Lothar Walther) to 9.3x62. I also installed a Timney and a M70 style safety. I need to upgrade the stock (Hogue, currently) to something better, but I'm very satisfied with the project, on the whole. The rifle is no lightweight and is a pleasure to shoot, even with the full tilt (BigGame/286 gr bullets) loads.

I like the rifle very much, but I recently bought a Mannlicher .30/06 which is much more a "stalking rifle" design, if you catch my drift. Both rifles are great, but they are very different. My point would be that you shouldn't try to make the rifle into something that it's not, when it's pretty darn good as it is.

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My 9.3x62 was a double square bridge Brno Mod. 21, that had a damaged barrel, probably from a cleaning rod or something..I had the barrel copied and the original barrel band rear sight, barrel band front sight and the barrel band sling swivel reinstalled and since it was copied the inletting was good to go. The only change was I went with a 26 inch barrel as the 9.3x62 really appreciates those long tubes in the velocity dept.

I get 2552 FPS with a 286 gr. Nosler, 2700 FPS plus a bit with a 250 Barnes X, and 2419 av. FPS with the wonderful 320 gr. Woodleigh SP and solids..Pretty close to my 375 H&H with a 300 gr. bullet at 2500 FPS so I shoot 20 grs. more bullet in the 9.x62 but my 375 gets me another 100 FPS over the 9.3, so thats about a push...That said I could pump up the 375 another 100 FPS os so..

I had very little tweeking to make the 9.3x62 feed in the Brnos long box. Only a tad of rail work. Gun would appear totally original to most folks, but its not, and Brno never made the gun in 9.3x62, only 7x57, 6.5x57, 7x64 and 8x57...It was an interesting project and gave me a 8 lb. rifle to pack all day in the African heat for Buff or Lion and it holds 5 rounds. Not a bad deal at all.

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Originally Posted by atkinson
The 9.3x57 or 9x57 are balistic twins to the proven .358 Win. and thats high praise...

The 9.3x62 is darn close to a balistic twin of the 375 H&H in that I can get 2400 FPS with a 320 gr. Woodleigh in the 9.3 or 2500 FPS a 300 gr. Woodleigh in my .375 H&H, based on the way I load them both. That boils down to a 20 grs. more in the 9.3 or 100 FPS more in the 375, a pretty fair trade off to equal IMO...


I quite agree with Bro' Atkinson on this issue. In the last 20 years, I have owned 4; 9.3x62's, 2; 9.3x57's, and 3; 9.3x74R's. (And still own all but 3 of them...) And I like them all. That said, there isn't anything on this continent that I wouldn't tackle with a 9.3x57. In a recent conversation with writer and gunsmith: Dieter Sturm he opined exactly the same thing.

The 9.3x62 does have a slight advantage in availability of factory ammo, but to a handloader it's a non issue. I have never formed brass, but I have made LOTS of 9x57 from 8x57 and it's no issue at all. Another .008" bullet diameter will likely not be noticed. smile

I find that all too often folks in this august group, tend to look at a given cartridge as what's it's NOT, rather than what it IS!

But then the general tendency these days is: Bigger scopes, longer barrels, and larger powder capacity. Sadly many fine things go often overlooked in the quest to best someone else. grin

Me go now...

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Frequently people who are right are also misunderstood by many who are not... grin.

Dennis


"The more you run over a dead cat, the flatter it gets."

"If you're asking me something technical, you may be looking for My Other Brother Darrell."

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Dennis,

That's the story of my life. grin


"Be sure you're right. Then go ahead." Fess Parker as Davy Crockett
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