I load for a Rossie and a Winny Model 1892 in .357 Mag ( some one converted the winny , some time in the past ) .  And a S&W .357 wheel gun .
     I have a lot more .38 Special brass than I do .357 brass .
     I load Lee home cast bullets .  I seat the bullets ( in .38 Special brass ) one groove further out / longer .  This gives me an OAL and internal volume ~ that of .357 Mag brass .
     This pretty mush solves the feeding problem .  Assuming the bullet nose / shape feeds OK .
     RN or RNFP  feed well in hand gun caliber lever guns .  Anything else may or may not  feed OK .
     Different guns have different idioschencries (sp) .
     Of course , the wheel gun does not care .
God bless
Wyr