quote:

Originally posted by Ghubert:
Bolt face shouldn't be too hard, the x64 is something like .496" on the rim and the x62 something like .470".

Should be able to just turn it out a tad, it'll have plenty of meat left as it's also designed for the magnum cases.

quote:

Originally posted by MileHighShooter:
Tried to find it, but didn't see it in the thread already....so where exactly can you hunt PG AND DG with a semi-auto rifle anyways? I thought semi-auto rifles were illegal for hunting in almost all of the African countries?

quote:

Originally posted by MileHighShooter:
Tried to find it, but didn't see it in the thread already....so where exactly can you hunt PG AND DG with a semi-auto rifle anyways? I thought semi-auto rifles were illegal for hunting in almost all of the African countries?

quote:

Originally posted by Stonecreek:
Alberta: In regard to the magazines on the BAR, I think that they are cartridge-specific insofar as they have a forward shoulder built in against which the shoulder of the case rests. (This seems like a great idea since it keeps the nose of the bullets from getting battered against the front of the magazine by recoil.) I think that the shoulder position of the 9.3x64 is closer to that of the .300 Win than the 7mm Rem or .338 Win, so, assuming that the magazines for these rounds are actually slightly different in the shoulder bump, you would probably want to utilize a .300 Win magazine.

Whether the magazine well is different between the '06/.270 receivers and the magnum receivers I am not certain.

Me neither, but I will find out. At this point, I would be very suprised if all those magazines won't directly fit, or can't very easily be made to fit, in the same action bodies.

That only makes good manufacturing sense. Build one basic action...sell it in a plethora of different chamberings just by providing different magazines and barrels (and MAYBE bolts). No manufacturing run scheduling or parts stocking expenses to deal with such as would be involved by having to build different mag-well dimensions into otherwise identical action bodies.



The reason I mention this is that you could conceivably start with an '06 receiver and open the bolt face a bit rather than rely on the slightly larger bolt face/extractor of a magnum receiver to properly hold the slightly smaller rim of the 9.3x64.


But, as the BAR is a push-feed design, not a CRF, there is little if any need for the bolt to hold or otherwise support one of the loaded cartridges to make it feed. So long as the bolt face is big enough to support the rear face of the cartridges against the pressures of firing, no more or less is required.

Extraction is a whole other crucial point, of course.

I have a Paramount push-feed action which functions for Magnum, Standard ('06-size heads), and PPC cases with no problems. Paramount provides spare extractors in all three sizes on request, and they can be interchanged without tools. That works great in both theory & practice, and is very nice to have.

With the BAR it will be essential to determine if the magnum extractor will reliably yank out fired 9.3x64 brass. If it will, fine. If not, one will then have to decide whether to fit a different extractor, or to get and enlarge the face of a .30-06 bolt.


Not to open a brand new can of worms, but have you considered the 9.3x66 (or ".370 Sako") as an alternative. With its .473" case head it would probably fit in a BAR .30-06 with little alteration.


The 9.3x66 is based on a case with a standard .473" rim diameter and the new Sako creation has an overall cartridge length of 3.34". This makes it adaptable to rifles with standard (.30-06) length actions. Other particulars of the new cartridge include a case length of 2.59", a base diameter of .470", a 34 degree shoulder angle and a shoulder diameter of .450". Bullet diameter is .366" (9.3mm). Visually this is a typical modern rimless cartridge with a short neck, minimal body taper and a sharp shoulder.[/i]

I find it interesting that the 9.3x66 Sako has an OAL no longer than either a 9.3x64, or a .338 Win Mag. Looks like the Europeans have adopted the same protocol (or lack thereof) as the American companies for naming their new creations.

That could be a possibility if the 9.3x64 is not possible. But if the various magazines do turn out to be possible to fit into the different actions, then there becomes no real need for the 9.3x66, for me.

quote:

But, as the BAR is a push-feed design, not a CRF, there is little if any need for the bolt to hold or otherwise support one of the loaded cartridges to make it feed. So long as the bolt face is big enough to support the rear face of the cartridges against the pressures of firing, no more or less is required.

quote:

I find it interesting that the 9.3x66 Sako has an OAL no longer than either a 9.3x64, or a .338 Win Mag. Looks like the Europeans have adopted the same protocol (or lack thereof) as the American companies for naming their new creations.