Ended the 8mm Mauser Blues

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fiddler

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Ended the 8mm Mauser Blues

No more scrounging 8mm brass for reloading. Picked up a shoulder resizing die and squeezes a 30.06 brass case into a 8x57 mauser case , then cut and trim the excess in under 40 seconds.

I knew I saved that 5 gal pail full of 30.06 brass for a reason.
 
Funny, I start with 8mm brass to resize for my 9.3x57 rifles. I've heard of the 30-06 process but didn't explore it much.
Which shoulder resizing die and process are you using??

That 30-06 brass is sure cheaper and way easier to get than 8mm. Couldn't even find any in a couple of Cabela's down south.
 
Big Uke said:
Funny, I start with 8mm brass to resize for my 9.3x57 rifles. I've heard of the 30-06 process but didn't explore it much.
Which shoulder resizing die and process are you using??

That 30-06 brass is sure cheaper and way easier to get than 8mm. Couldn't even find any in a couple of Cabela's down south.
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I think it was ordered from Brownells for about 70 bucks including shipping. We've done 400+ pieces already and they fire well. The base of 8mm is identical to 30.06. Push the shoulder down and trim off the extra length. Like I said, I've got pails full of 30.06 brass just collecting dust.

I've got 3 firing out of some of them so far without annealing. No cracks or damage has shown itself with max pressure loads.
 
I have just run '06 brass into a 8mm FL die with the decapping stem removed, then trimmed. Resized with the decapping step in place to finish the neck diameter, ready for reloading.
 
tiriaq said:
I have just run '06 brass into a 8mm FL die with the decapping stem removed, then trimmed. Resized with the decapping step in place to finish the neck diameter, ready for reloading.
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The exact same amount of steps as my process. Regardless, HUGE savings on brass whether buying commercial loads or new brass. 30.06 brass is so plentiful that it almost has no value.
 
My method for making 7X57 or 8X57 from 30-06:
a. Run 30-06 in 8X57 trim die (I don't have a 7X57 trim die);
b. Cut whatever sticks out with a hacksaw;
c. Full length resize;
d. Trim; and
e. Anneal.
 
oppy said:
What trim die did you get, and were did you get it from? I see that Brownell's has them, but I'd rather support a Canadian business if I can.
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It is a RCBS trim die for the 8X57 Mauser and if I my memory serves me right, I got it from SIR in Winnipeg a long time ago.
 
I did the resizing from 30-06 a few times. I guess I was fortunate to know a dealer who had lots of 7mm and 8mm brass, traded him for a pile of OF .308 brass. I'm set for life. Still a good idea to share things like this. Helps new reloaders.

I reused some 7.65 Argentine Berdan primed brass. Drilled out a primer hole the size of boxer primed brass, and used boxer large rifle primers. That was some years ago. I recently did a few more, but haven't fired them off yet. Light load of Unique with a WW cast bullet.
 
gunn69 said:
Don't forget to annelle the brass as the last step.
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That's my first step. Actually its step 3. I made a jig to trim the brass .002 under the target length, camfer them. Then anneal them, and resize. Your cramming a lot of bottle in to a neck. Annealing first greatly increases the brass life. Some with out annealing you get only one shot.
 
MRP said:
That's my first step. Actually its step 3. I made a jig to trim the brass .002 under the target length, camfer them. Then anneal them, and resize. Your cramming a lot of bottle in to a neck. Annealing first greatly increases the brass life. Some with out annealing you get only one shot.
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I haven't annealed any of the first 100 rounds yet, some we have three firings out of. We have a crap ton of brass to play with but if it starts to be a problem we'll do the heat treatment.
 
funny, I've never really had an issue finding used 8mm mauser brass. Admittedly easier to find -06 brass for sure, but not really an issue. I must have at least 500 pieces. Probably 750 or close to it.
 
JR Hartman said:
funny, I've never really had an issue finding used 8mm mauser brass. Admittedly easier to find -06 brass for sure, but not really an issue. I must have at least 500 pieces. Probably 750 or close to it.
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I haven't really seen a lot of it, just small batches here and there. Most of the brass I have comes from commercial loads or the odd batch of expensive new brass. When my shooting/loading partner and myself decide to load a round, we usually need one or two thousand pieces of brass. We've solved our problems with volume by doing the 30.06 conversion. I've got pails of it collecting dust.
 
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