6mm International

[Mike Ryan]

I recently acquired a fine old rifle built by Harry Lawson, yes, it is stamped as such, on a commercial Mauser action chambered in 6mm International. I have the dies, some new 250 Savage brass, and some 68 grain projectiles. Any information on loads or components for this forgotten round would be appreciated.

 

[TonyinKY]

I’m guessing it’s a 14 twist. If so you can’t beat Hodgdon H414 if you can find it.

 

[bpd459]

From Sierras 3rd edition.
John

 

[Ackman]

I recently acquired a fine old rifle built by Harry Lawson, yes, it is stamped as such, on a commercial Mauser action chambered in 6mm International. I have the dies, some new 250 Savage brass, and some 68 grain projectiles. Any information on loads or components for this forgotten round would be appreciated.

I have a 6-250, same thing but without the shoulder set back so a bit more capacity. Brass is either 22-250 necked up or 250 Savage necked down and turned. I sized the reamer for unturned 22-250 brass. Bullets are 65/70 gr and the only powder that works well in mine - 12 twist - is W760. I’d rather it was a 6BRX and have thought about rechamberig, but the action is a 700 and that 22-260 case does feef well.

 

[koger]

You might want to try some Reloader 15 in this round.