I think we both have a general answer to your question overall but ... to get even a slight opinion more info is needed before I could imply anything. So here are questions to you. (Give us something to work with)
Why would you not want to size your bullets?
Why cast your bullets yet not follow protocol?
What is the measured size of your cast bullets?
Have you lubed them? What lube?
Is accuracy and severe leading of no consequence?
Have you fired this gun before? Hows the timing?
Its kinda of a hard question to address when the above questions remain atlarge.
The whole idea is to save money, to make better than factory ammo, to produce taylored ammo for accuracy reasons, while parallelling a safe load recipe.
its not a tumble lube but it has 3 groves in it . is there any damage that can be done if its not sized other than lead fouling?
ok the reason I ask about resizing is because I had no idea there was such a thing when I orderd my mold.
the measured size is .358
I have not lubed them or loaded them or fired them.
I do not have a gun myself but a freind does so I got a mold to try and help him out .myself I have quit a bit of lead around that I make 12 gauge slugs with and thought this would be somethink else neet to do
It is relatively cheap, plus you get a 4oz bottle of Lee Liquid Alox bullet lube with it in the kit. Its a pretty good system really. I got 3 or 4 kits of various calibers and sizes. I have now gone to other methods using Lubersizer systems and home made lubes etc..
Anyway, by ordering the .357 sizer kit you can enlarge it to say .358 should the .357 be to small.
IMO you really need to size the bullets cause of inconsistencies. for leading and accuracy sake.
Let us know the outcome! You're about to be bitten by the addiction.
When shooting cast lead bullets, another consideration is the possible requirement for gas checks. "Cowboy" loads don't require them, but if you're shooting even moderately high velocity, you should add a gas check to your load.
A gas check is a copper disk that is pressed on to the bottom of the bullet. It keeps pressure from seeping by the lead bullet when loading high velocity rounds.
A wad cutter is a lead bullet with a flat tip. It looks like you cut the end off of the bullet.
A semi wadcutter tapers slightly then has a flat tip.
Both styles of bullets are designed for target shooting so as to cut clean holes in the target paper.