I'm in the beginning stages of loading for a 9.3x57R Husqvarna.  My groove diameter gauges at .362.   

I haven't verified the chamber will accept a .362 bullet, but expect that it will.

Anybody have a bullet close to that?  or one enough smaller to paper patch?

Thanks,
dave

Dave,
If your rifle isa 9.3x57/360, your bullet weight will be between 150 gr and 200 gr and the normial powder is IMR 4198.
I use commercial cast 0.362" bullets in my 9.3 rifles (9.3x72r, 9.3x57/360, & 360 1/4").  I have also used 35 cal bulets as casts or sized to 0.361".   
I bought a 750 bullet lot from Raven that are about 200 gr & 0.362".  They may have more.

I shoot a 9.3x53  Swiss slugs .364 and a 9.3x57r that slugs .366. I have an NEI mold that has 2 different cavities, both cast .363 with 20 to 1. The smaller cavity cast a 225gr. Not interested in selling, I would loan it to you for a few weeks to cast as many you need.
Mike

Dave et al,

Many early (pre-WWI German) "9.3" rifles were really 9mm and 9.1mm rifles.  My 9.3x72r kipplauf was really a 9.1x72r.  It shot well with unsized, commercial cast 357 S&W bullets.  These were between 0.360" and 0.362".   

That said, there was not a standard before WWI.  The best way to determine what your rifle shoots best with is to do a chmber cast with say 1" of the rifled bore included.   

Also you should fireform a case and measure the ID at case mouth to see what is the maximum size bullet that you can use.  Of course, subtract 0.0015" for bullet release.

Dave, best success with your rifle.