Has anyone had success trying this? I am entering a new chapter of reloading as I purchased a 9.3x57 but brass seems to be a bit of a hassle. All other aspects of the cartridge I have under control. Can a fella trim the 62 brass down then re size for 57?? Please try not to make me feel toooo stupid. Thanks in advance
9.3x62 for 9.3x57 brass
- Thread starter Hmatt
- Start date
You could also try using .30'06 brass. My procedure for necking it up to x62 was to run a .416 expander ball through the neck, then through a full length size die. You would have a lot more trimming to do for x57. I lost a few cases to split necks, so you might want to anneal before necking up.
The thought of using expensive, and somewhat hard to come by x62 brass makes me cringe. You also have to consider that the base diameter is slightly larger on the x62, at least according to the cartridge drawings.
The thought of using expensive, and somewhat hard to come by x62 brass makes me cringe. You also have to consider that the base diameter is slightly larger on the x62, at least according to the cartridge drawings.
Thank you for the insight. I actually managed to pick up about 25 1F 30-06 at the range today lmao.
You may want to be careful using any 1F brass for this project.
Try Intersurplus [site sponsor] for ppu 8x57JS brass.
As 9.3 Mauser pointed out, the base diameter of x62 brass is larger than the '57 & '06 series brass.
I've used necked up 8x57 brass on 8 different 57's & have yet to have a problem, as long as you neck them up first, then trim to square up the case mouths.
Try Intersurplus [site sponsor] for ppu 8x57JS brass.
As 9.3 Mauser pointed out, the base diameter of x62 brass is larger than the '57 & '06 series brass.
I've used necked up 8x57 brass on 8 different 57's & have yet to have a problem, as long as you neck them up first, then trim to square up the case mouths.
You might find 8x57 brass difficult to come by but a couple of the banner advertisers appear to have it in stock. It's PPU but it should work ok.
When I make up my 338-06 cases and 338-08 cases, it really doesn't matter whether I use once fired or unfired 30-06 and 308 cases.
Just make sure to anneal the neck and shoulder area first.
When I neck up to 338, it's easily done in one pass as long as the inside of the case necks are lubed. I've done the same up to 358 caliber but use the 338 expander first.
In your position, I would suggest that you use a 338, 358 then your 363 expander to neck up in stages.
You may be able to do it in one pass but you could also be collapsing shoulders.
That was an issue for me when I tried to neck up to 358 from 308 for the 358Win Mod 7 I had at one time.
I also found things went much smoother with expander buttons that had a long taper, rather than a rounded ridge at the top of the expander button.
Expanding appx .055 shouldn't create any neck thickness issues to worry about IMHO
Also, I found that when I was expanding the necks I had a lot less trouble if I kept the expander button as close to the shoulder area of the die as possible.
If you set the expander ball down where it normally sits, there is a good chance you will bend the stem as you try to expand the neck, which will require force than the stem was designed to handle.
I finally ended up making an expander button especially for the job for the 358 Win cases. It was a solid piece of drill rod, 7/16in and threaded 20tpi to fit into the top of the sizing die. There was also a taper going from .300 to .355 over an inch and a half inch single diameter area .355 in.
This made for a special expander rod that would be strong enough to form even the toughest brass. There wasn't anything it wouldn't expand.
This would be extreme if you're only sizing a hundred pieces.
When I make up my 338-06 cases and 338-08 cases, it really doesn't matter whether I use once fired or unfired 30-06 and 308 cases.
Just make sure to anneal the neck and shoulder area first.
When I neck up to 338, it's easily done in one pass as long as the inside of the case necks are lubed. I've done the same up to 358 caliber but use the 338 expander first.
In your position, I would suggest that you use a 338, 358 then your 363 expander to neck up in stages.
You may be able to do it in one pass but you could also be collapsing shoulders.
That was an issue for me when I tried to neck up to 358 from 308 for the 358Win Mod 7 I had at one time.
I also found things went much smoother with expander buttons that had a long taper, rather than a rounded ridge at the top of the expander button.
Expanding appx .055 shouldn't create any neck thickness issues to worry about IMHO
Also, I found that when I was expanding the necks I had a lot less trouble if I kept the expander button as close to the shoulder area of the die as possible.
If you set the expander ball down where it normally sits, there is a good chance you will bend the stem as you try to expand the neck, which will require force than the stem was designed to handle.
I finally ended up making an expander button especially for the job for the 358 Win cases. It was a solid piece of drill rod, 7/16in and threaded 20tpi to fit into the top of the sizing die. There was also a taper going from .300 to .355 over an inch and a half inch single diameter area .355 in.
This made for a special expander rod that would be strong enough to form even the toughest brass. There wasn't anything it wouldn't expand.
This would be extreme if you're only sizing a hundred pieces.
- Location
- Western Manitoba
Hmatt - some years ago, I did as suggested above - new PPU head stamped "8mm Mauser" brass - opened neck in first pass to 9.3 with Hornady Custom Grade dies, then to straight wall (or nearly so) with a plug that I made for a Lee "Universal Case Expanding Die". Then back into 9.3x57 die and worked shoulder back until the cartridge just barely closed in my rifle - no clue if that is to anyone's spec, but that brass fits this chamber / bolt with really minimal end-play. I could not find a Lee case length gauge tool for 9.3x57, so made one by shortening one for 9.3x62. Of course, resulting cases have the original PPU "8mm Mauser" head stamp, which apparently bothers some people. I do not think I have ever seen "proper" 9.3x57 brass or ammo for sale, certainly not any place that I could buy it.
Is several other people that I know of who simply run 8x57 case into 9.3x57 die - load and fire it.
Is several other people that I know of who simply run 8x57 case into 9.3x57 die - load and fire it.
Last edited:
Awesome thanks
I've done this many times before I found any actual 9.3x57 brass. It actually allows you to make brass that fits your chamber very well. - dan
This is kind of the best route, as alot of the 9.3x57 chambers are on the sloppy side for just running 8x57 through a FL die.
I would load the first one pretty light if just running 8x57 and loading straight up.
How light? I’m still working on finding a starting charge of imr 3031
- Location
- Western Manitoba
Go here - that Darryl S. guy is/was very credible guy about 9.3x57. http://www.outdoorsmenforum.ca/showthread.php?t=76602 I was directed to his thoughts by another person on CGN, and I think that article has been previously posted on CGN. I have no idea if that guy is a member here or not - but a really good place to start - unfortunately, I do not see him mention IMR 3031 powder with any of the bullets that he used.
norma are coming so erraticaly that is not worth to bother ... and up to now never an issue with the ppu/prvi brass.
