I want to add something to this conversation. Since your new to reloading, I want to share a recent experience I had.
I bought 1500 SWCs from a commercial caster and my standard practice is with any shipment of bullets I receive is to weight about a fifty of them to see what the extreme spread is for the bullet weight.
This shipment I received has a weight spread of 10 gr. This was for 9mm which is high pressure like your 10mm is, so these bullets are a no go.
2 or 3 grain spread, I'm not going to worry about to much.
I called the company I bought these from and told them I couldn't use them, they were suppose to be 124 gr and some of them were 134gr.
They refunded me and sent me a shipping label to send them back so they could use them for a training session for what you don't do when casting bullets, with their new employees.
I would suggest you adopt this practice also to protect yourself, especially in times like these when the casting machines are running 100% plus and not keeping up with demand.
Don't blindly accept that these bullets you bought weigh 155 gr. Verify for yourself that they are within, say, 3 gr of what they are supposed to be, and not more than that.