TheGuyofSouthAmerica,
I ran your load in QuickLoad, it is NOT SAFE.
Lee 124gr .356" TC bullet,
4 grains VV N330,
1.0465 OAL,
= 36,700 psi (for reference, CIP max is 34,084, SAAMI max is 35,000)
Its also a compressed charge of 117%, which means actual pressure may be significantly higher. Compressed charges tend to burn much faster than non-compressed charges and no software can properly estimate that. Personally I stay out of compressed charge loads unless a reloading manual or powder manufacturer lists the exact load as safe.
The 1.050 OAL is still a compressed charge of 107% and still exceeds saami max by a few hundred psi.
I'm wondering why not make your cartridges longer, at 1.100" same charge pressures drops to a safer 32k, higher pressure does not equate to more velocity/energy.
For example, one of my ridiculously overpowered handload happened because i repeatedly increased oal, increasing case capacity for more powder without increasing cartridge pressure. Unfortunately its not 9mm so while you can adapt the concept you will not see this kind of increases.
Book Load Max- 335 gr bullet, 43 gr charge, 2.020" oal ~50,300 psi. some 2000 fps, 3000 ft-lb if i remember right
My Load- 335 gr bullet, 47 gr charge, 2.135" oal ~46,800 psi, 2260 fps / 3,800 ft-lb.
If i load at 2.250" which is close to cartridge specification max oal, I could theoretically get the bullet close to 2300 fps, 4200 fpe. But I don't see the point as the existing is more than satisfactory for plinking (blowing apart produce like if i packed it full of tannerite)