Given the two powders on the list, I think Universal is a bit slow for HBWC. I would recommend Titegroup, if those 2 powders are the choices. I also use Bullseye - if I can find it, or Reddot (Promo), or even 231.
The thing with HBWC, they like small charges of fast powders, which is one reason they are popular - economy ( read : cheap !) .
Keep the velocity under 850fps to maintain projectile integrity. The HBWC may come apart at higher vels.
Have fun !
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