Here's the mould: https://noebulletmolds.com/site/shop...3-5-cavity-pb/
Understand that I'm a new bullet caster. Before starting I wiped Militec lube on the surfaces that wouldn't contact the lead. It took awhile to warm up the mould despite me heating it on the hotplate (1/4" steel) portion of the propane flame. Then once I got going the mould got too hot and some of my bullets clearly weren't fully solid when they came out of the mould and they smeared/dented. I guess I need to slow down a bit (hard for me to do) or is there a decent way to cool the mould off that isn't time consuming and allows me to keep my rhythm? There's a lot of lead and heat going into that mould with each ladleful. It's not my 9mm mould!
But all in all I would consider this session to be a success. I knew I was making culls since bullets are steered from the base and some of the bases clearly weren't good. OK, question... "creases" in the nose and curve of the bullet, how big of a deal are they? I'm casting for .300BLK subsonic and don't expect to use them much beyond 100 yds. The bases are sharp and defined. I culled bad bases but as long as the nose and curve of the bullet were sound I kept them. OK or garbage? It's not that many bullets in question and mistakes can be recast. But why if they are OK? Hence my question.
Other than slowing down I can't think of any other good way to allow the mould to cool. A 2nd mould and alternate? Learn patience and just slow down?
TIA!