I certainly won't say that anything won't work, but my main issue would be how accurately this can be done.
I think that the tips will probably aid expansion as small hollow points have a tendency to plug and then not expand.
I have done this for bullets in the 300 yard range, but since this is LRH we need to think of accuracy at the extremes!
IMO, the advantage of plastic tips is their relative low mass and the effects of concentricity at long range.
Berger J4 jacket thickness is within 0.0003
How accurate one can drill and insert a tip would be crucial, as well as weight and dimensional accuracy from tip to tip.
If someone used a bullet making die set and allowed for some swaging of the bullet while inserting the tip would probably correct much of any inaccuracies in drilling and inserting the tip.
I must admit that the bullets shown look absolutely beautiful and look forward to long range results