I’ve started. I’ve only used two powders, and 5 bullet weights/styles.
I’ve learned a LOT. But, Also have a ways to go.
A few things:
HP38 is too fast to be useable. With a 90gr-100gr bullet, excessive pressures are encountered before sufficient slide/muzzle velocity is attained for reliable function.
LongShot is MUCH better. Slower yet (ACC#7) may be better, likewise #9.
A Lee 113gr RFN-GC shows much promise!
Bore diameter is as advertised on my pistol (S&W Sheild EZ). 0.313” . Cast bullets need to be .314”.
Pistol and Federal 100gr factory ammo are VERY accurate. My 1st five shots went 1” with two in same hole. Shot at 25yds from a padded rest.
Jacketed bullets will need to be .312” for peak accuracy.
Advantage of the .30SC is that it pushes a .312” jacketed bullet fast enough to expand and heavy enough to penetrate.
Dense spherical mid-slow powders will be best.
The range of powder charges between minimum (to cycle) and maximum are small. 10% or so.
It behaves more like a .30Carbine than a .32acp.
Although .32acp will feed from magazine, fired cases will not extract or eject. Not even close! I tried! Insufficient velocity/ energy.
This cartridge isn’t for everyone! It’s a hobbiest, purest, affectionado’s cartridge.
I like it, but I have a fetish for .32’s...
And BTW; Factory ammunition IS LOADED HOT! Like its big brother the .30Carbine, there won’t be any “hot rodding”.