OAL, as always, gun & bullet specific. Make a dummy round @ 1.220" & see if it chambers. If a go, try 1.230", if a no go, drop to 1.210". Powders, well, we all have favorites but no one has proven to me there is anything better than WST in the 45acp, any bullet style or wt. Plated load between a lead & jacketed bullet, so starting @ 4.5-4.6gr should get realiable feeding. DO NOT over crimp, plated hate that. This includes the ever popular Lee FCD. I have proven it ruinous to accuracy w/ soft plated bullets. These are 200gr, but you can see they were not happy; shot @ 50ft.