Interesting comparison with so many on hand. Sounds like Norma could be a good option
9.3x62 case web expansion
- Thread starter Jon87
- Start date
Interesting comparison with so many on hand. Sounds like Norma could be a good option
That is a fantastic comparison thanks for sharing!
Unless you want to rechamber; consider your brass fire-formed. Rather than trying to resize them back to spec each time and fatigue the heck out of your brass get a collet neck sizing die. Your brass will last longer, it will remain more concentric, and it will stretch less. I have started a year ago making brass for my 6.5 x 55 from .30-06 range brass; the old HVA still likes them fairly hot and if I do my part, 1" groups are common.
So, I've got all this Lapua brass in 9.3x62 I don't really want to use anymore. Since it's basically 30-06 at the case end, I'm wondering if I can just turn it into 30-06 brass. Lots of people making 9.3x62 out of 30-06 but anybody ever go the other way? I've never necked up or down really but I'm guessing .366 to .308 is too big to do in one jump?
- Location
- Western Manitoba
As far as sizing it down - really have to try one or two and see if it works? I was sizing 8x57 up to straight wall (likely .400 or so ID) and then back down to 0.0364 or so (9.2 or 9.3 mm) without issue in this Rockchucker multi-leverage press - years ago, I did about 50 x 7.62 NATO into .243 Win Full Length sizer die in one go - that was a good crunch on the single leverage RCBS press at that time, but I did not break anything. Is not "jumping out at me" that I lost any doing that - I think today I would use something in between to do that - like 7mm-08 or 260 Rem or something like that. If you end up with necks cracking, is likely a sign that the brass necks want to be annealed before crunching them down in diameter. Really not much to lose, if you do not want to use them as 9.3x62, but want to have more for 30-06? The case head stamp will be wrong, but that might not be an issue for you. You might want to pay attention to the rim diameter - in theory, 9.3x62 is supposed to be circa 0.468" versus 30-06 which is supposed to be circa 0.473" - that 0.005" difference may not make any difference for you?
I may give a couple a try just to see what happens. I don't really need more 30-06 brass, just bouncing around ideas for what do with the 9.3x62 stuff. Along with the case diameter, the rim is exactly the same between the Lapua 9.3x62 and 30-06 brass I have. So if necking down works ok, it would really just be the head stamp that is off
- Location
- Alberta, North America
My hot max 9.3 loads dont even do that ...
Sell it on the EE and buy proper '06 stuff.
I picked up some factory PPU ammo in 2 different lots. Potashminer was also kind enough to send me a few pieces of new PPU brass to try. All of them measure the same at 0.472". Pretty sure this is the answer, but hopefully I can get out to the range soon to test it out.
I doubt it's a huge problem. Just be mindful how much you size it back.
If you can get it, maybe try some Sako, Norma or PPU factory just for reference (measure before and after firing) Sako factory ammo should be easy enough to find and usually isn't too expensive. PPU brass is also pretty easy to come by.
Oops. disregard - just saw your post above - glad you sorted it out
If you can get it, maybe try some Sako, Norma or PPU factory just for reference (measure before and after firing) Sako factory ammo should be easy enough to find and usually isn't too expensive. PPU brass is also pretty easy to come by.
Oops. disregard - just saw your post above - glad you sorted it out
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