I have to second (or third, or forth) the 6.5mm 150-160grainer (color me biased
The 160 would most likely be the highest one could go weight wise w/o requiring a custom barrel twist.
If you would be able to produce a truly consistent meplat (ala Cutting Edge) i'm good with hollow points, otherwise I will take the tipped version. Berger & Sierra leave too much to be desired in my experience & meplat uniforming is almost as irritating as neck turning; call it OCD more than anything
I use Cutting Edge now, I have no problem with those prices. On the other hand, it would take an incredible product to coax me into paying any more.
If you roll solid copper I highly suggest the bore rider design. Even as a Barnes fan boy, I get tired of scrubbing copper out of the bore
(shhh... don't tell broz)
One might start a Poll-Thread to discern which caliber/weight is in highest demand & start there.... Just my .002