Home Forums Hunting & Shooting Custom Rifles & Wildcats SA 9.3?

Anyone neck up a 358 AI to 9.3? Looking for a 9.3 for a short action using a standard bolt face.

You could do it off the 308 case but they did it years ago in the form of the 358 win. Why not just use the x62? Options abound.

They do have a 9.3x57mm.. Works pretty nicely, just as the 358 Win and similar.

I guess it isn't a true Short Action round depending on what rifle you wanna chamber it in.

There have been some 35-284's built in the past and I can't see where it would be hard to go up another .006.

I want to thank everyone who replied.

Here is some more information on why I was looking for a SA 9.3. I currently have two 9.3x62's right now which has caused me to accumulate about 1000 assorted bullets in .366 caliber. I have a switch barrel built on a Kelbly Atlas short action with an extended Wyatt's mag box that gives me about 2.995" of usable length. This rifle is currently chambered in 338 Federal and I was thinking I would like to add a second barrel that might use my abundance of 9.3 bullets.

I am familiar with the 9.5x57 and it looks like if I keep it to the lighter bullets from 250 and lighter that the OAL should work through the extended mag box. I have a bunch of 232 gr Norma Oryx and Vulkans that should work.

Does anyone know if a 9.5x57 would work through that action with the Wyatts box?

Probably. The x57 is a good woods round.

Don't hold me to it, but if you have 2.995" of magazine you'll be way more than fine with the 9.3x57. I don't have my load book in front of me, but most of the 232-286 grain bullets are fairly blunt, so OAL isn't a big deal in this one.

The 9.3x57 Mauser requires more than 3.0” as the COAL is 3.23”. However the 9.5x57 Mannlicher-Schoenauer has a COAL of 2.94”, which may work with the Wyatt magazine.

I might add that the 9.5x57 MS is obviously a .375” bore in lieu of your desired .366”.

The 9.5x57 is one that is in the running. Always wanted a nice 375 caliber rifle, although I would much prefer it in a 1910 MS full stock version.

9.3 Creedmoor.

If it’s a .375 you want the easy button is the 375 Raptor. It’s been around for a couple years, there’s brass and load data out there. Just google it and read on. It has really good ballistics for a 308 WCF parent case. Designed for AR-10 platforms, however it works great in turn bolts and BLR 81s, with short barrels.

You trying to start a riot?

Might be a contender for new gayest round. 9.3 LGBTQ

there's also the wildcat 9.3 Barsness-Sisk--which is the .350 Remington case necked up. Charlie Sisk and I came up with it in 2004, partly because Charlie had discovered the .350 case fed perfectly from the factory magazines for the then-new short, belteless magnums like the .300 WSM and 7mm SAUM. In fact it often fed even better than the beltless rounds.

I checked the powder capacity on the .350 case, and it turned out to be just about the same as the 9.3x62. PT&G built the reamer, and Redding made dies. I had him build mine on a short-magnum stainless Remington 700 action, original a factory rifle in 7mm SAUM. He built his on a M70 Winchester action, originally a .300 WSM.

Turned out the round did duplicate 9.3x62 ballistics when loaded to approximately .30-06 pressures, around 2450 with 286s and 2650 with 250s. We took a bunch of big game with them over the next few years, from deer to an Alaskan grizzly and water buffalo.

Charlie has built some for his customers, if I recall correctly around 30 the last time I asked him. It's a VERY easy wildcat to form, in fact you can neck up .350 brass just by seating a 250-grain Nosler AccuBond....

Revolutionary

The really easy button is 9.3x57mm. Brass, ammo and bullets are all available. Load data as well. Impressive ballistics from a moderate pressure round. The bullets designed for this bore diameter need a certain speed to expand well. I wouldn't try these generally tougher bullets in a lesser round than x57 if keeping standard bolt face

A little different but maybe the 375 Raptor

We are doing a 9,3 with the same powders as the Raptor... and a long throat.

93Jimbo will be the name... I'll put up details as we proceed.

185 gr. Lapua bullets may get to 3,000 FPS (in theory)... but it is all theory for now.

We will also be testing 232 gr. Normas.

The 375 Raptor sure sounds interesting. A 270gr Speer at 2350fps is impressive from the 308 case. That would give a 9.3x57mm mauser pause for concern. A 9.3x51 should be equally impressive if the case has minimal taper and pressures are up there. Also enjoyed the video of the 300gr Sierra Gamekings at 2250fps.