The Dynapoints seemed to work so-so for me at 100 yd, but much better at 300 yd. In my mind there's three main things that affect score assuming a perfect shooting technique, mainly a) mechanical accuracy, b) SD of velocity, and c) wind, luck, and wind-reading skill. I think the mechanical accuracy is important at closer distances, which means the Dynapoints are only so-so in that category. The SD of velocity is of course more important at longer distances, but I wonder whether my vertical stringing wasn't instead due to some loss of concentration near the end of the match. Finally, I think I got lucky and fired my 300 yd shots (rather quickly, love a semi-auto for that) in a relatively windless window of time. Also, the semi-auto is nice because you don't lose your careful, concentrated hold of the rifle between shots (where a bolt action requires working of the bolt and thus partial loss of the careful hold).
Anyway, it'd be interesting to see how your boltgun does with Dynapoints. If nothing else, it'd make good inexpensive practice.