Anyone have any idea where I could get some of these? I remember them being offered just a few years back, but can't seem to find any now that I have a need for them...

Lock stock and barrel had them in stock last time I looked.
JW

If you cant find them try using 358 cal GC's instead. As long as you have a long enough GC shank on your mould and GC thickness is similar they should work fine. Folks use 375 GC's on their 9.3's with good results.
Joe