Home Forums Hunting & Shooting Ask The Gunwriters New sako 370 Mag is just a 9.3 Whelen ?

So can you neck up 30-06 brass for it or do you have to buy the expensive stuff?

Spot

The 30-06 is X63.

The 370 Sako is X66.

Do you plan on stretching it out to 66? Can it, I really doubt it.

As far as I know Ken Howell developed cartridges based on the 6.5x66 case years ago.

http://www.hunting-rifles.com/Ammo/ammunition.htm

It is possible to use .30-06 basic brass but you'd be better off using the correctly formed 9.3 Sako stuff. I would be willing to bet that brass will be made available once the rifles and ammunition begin to hit the market. However, that doesn't mean it won't be inexpensive. The 9.3 Sako was a proprietary development that was designed by Erkki Kauppi, who was the head of ammunition at Sako for quite a while. Supposedly his goal was a case that allowed for a larger powder capacity than the 9.3x62 but could still fit a standard action and bolt face.

Pinotguy,
I think you are right. You'd be better off using the correctly formed 9.3 Sako stuff. Z-Hat list 9.3x66 Sako brass for $153.25.

Yikes -

For that price it's better to get a Sako 85 rebarreled to 35 Whelen.

Spot

That is expensive!

I just bought some Lapua 9.3X62 brass for 100 bucks for 100 cases and I thought that was crazy...

I hope you guys are good with your metric conversions.
CIP specs for cartridge maximum dimensions for the 9.3x66Sako (first figure) vs 35 Whelen (2nd figure) are:
Rim 11.95mm vs 12.01mm
Case web 12.13mm vs 11.96mm
base to shoulder length: 55.80mm vs 49.48mm
Shoulder diameter: 11.43mm vs 11.20mm
Case length: 66mm vs 63.35mm
Junction cone: 34deg55min vs 35deg (addition of both shoulder angles)
Pressures (measured by transducer) are also listed as slightly higher in the 9.3 but I haven't worked out from the CIP spec sheets what Pmax, PK, PE are ... but the 9.3 is about 150bar higher in these 3.
Is it a bit clearer now that the 9.3x66 is not a 9.3Whelen?
Cheers...
Con

Still reckon they're the same case?

Hmm... I'm surprised the Federal ammo maker indicates their 370 sako ammo is just necked up 30-06 brass.

Kinda sucks.

Spot

Spot,
I'm not. No offence but its typical American slopiness in adopting European cartridges ... the same that brought us PMC 6.5x55 ammunition/cases with 0.473" head diameters which caused "interesting" issues when fired in ex-mil M96 rifles. The 9.3x62 is in the same boat ... its not a 30/06 case head ... that some get away with using 30/06 brass is probably due to tight chambers and malleable brass. Sometimes it works ... sometimes it doesnt.
Cheers...
Con

Con,

I'm a German (background but full blooded), and a Engineer to boot --- AKA For me there can be no slop - I don't want one if it is't exactly what the chambering is.

In the end if it was appropriately engineered for an 06 case, I'll be all over it but if not - not so much.

Spot

I'd rather build a 9.3 on a 338 case. I guess you could set back the barrel and jam a reamer in it.

You know that may not be a bad idea, but in a slightly different combination.

Buy a Sako in the bore size you want and then have then have a smith recut the chamber.

Spot

Ya know maybe Federal pulled a Rick (WSM patents) and patented a 9.3 Whelen.

You could buy a Sako 9.3x62 and then bore it out with a reamer.. maybe not.

Spot

I wouldn't buy a Sako 85 for that, but might but a CZ 550 and try it. Why? The CZ is less than half the cost of the Sako.

ok, i just read this twice and my head hurts even more..

am i reading this correctly? if this brass gets produced here and the price drops can this be necked up or down to show a viable improvement over the AI 06' case or would i be lookin' at a 280AI shortened a whisker?

woofer

Brass retails for 39.95/ 20, I bought 200 for $ 32/20. You can use 06 cylinder brass but their is no real saving there. there are cheaper routes to go with the a similar level of utility.

Furpick,

Is there a point of contact for 9.3 Sako brass in Canada who us Yanks could order from? I tried the only other source I knew who offered it - Reimar Johannsen in Germany, and was told they do not import into the U.S. Beretta USA is totally worthless with these types of inquiries.

Stoeger canada is the importer and that is where it comes from. You can get the address off the Sako web site. I have had the 93 ordered since last sept as well as a 3006 finlight ordered in Jan of this year, should know this week or next what is happening with this. australia has rifles in this caliber readily available as I understand it and when last checked a ss=85 is 2000 OZ dollars, its the off season here so i can wait. stoeger has to sell through a retailer, I use Ominica Source for Sports in vanderhoof BC, they have a web sight.

As the happy owner of two Whelens, a 7600 and a CDL, I've tried to avoid any strings on the 9.3 X 62, since handling a CZ550 so chambered.

It was easy when I looked at the cost of Lapua brass but Graff has it for $39/100: http://www.grafs.com/product/187955

Think it's any good?

T..,

I think it's Privi Partizan (sp?) brass. In any event better than necking up '06 stuff.