Rimmed 300W or 30/357

[thehouseproduct]

So I switched my shellholder from a 223 to a 357 and ran a 357 mag case into my 300WTF die and this is what i got.

Does it seem possible to run a 300WTF reamer into a Ruger #1 blank and then add a rim? It seems like I could use this round as is, or shortened and formed 357 max brass for cast bullets that like a longer neck. this way I could use my dies set up the way they are for my regular and rimmed 300WTF rounds.