One of my favorite bullets for my 7x57 is the now long discontinued Sierra Pro-Hunter 170 gr. round nose bullet. They just flat out work. Hornadys 175 gr. round nose is a close second , especially in my Ruger #1A. A kind gentleman who had almost 200 of those Sierra bullets sold them to me for a reasonable price. I much prefer them when the conditions warrant. I do use pointy style bullets most of the time.
Am even considering the 150 gr. Nosler ABLR for my 7x57.
I can't help the OP in his search for the bullets he wants as I don't have any but I'll keep my eyes open.
Paul B.