Triple 7, do you think its a problem when i cast the bullets then? Is there any obvious way to tell if they are disfigured or unsuitable for firing. The batches ive made have had no serious problems, they go down the barrel snugly but easily enough, some small blemishes to the surfaces can be seen - mosly small scratches, but nothing serious or disfiguring. Not exactly sure of the weight, ive been melting down shotgun pellets for lead and then lubing them well before firing.

And it is a rifled barrel. sorry i didnt mention that earlier.