I have found that heavier bullets in a given caliber lose less velocity than the lighter ones do in shorter barrels. So a 100 grain would definitely be the suggested weight for the short barrel. You will have to actually shoot it to see if you are getting the accuracy you want.
I find these short barrel rifle calibers shoot as well if not better than most standard rifles if you can hold it steady. A shorter barrel is stiffer than a long sporter profile barrel you find on most bolt guns. I have several Encore and Contender pistol barrels in rifle calibers and have been curious to see how well the CVA will do. The CVA rifles are quite accurate from my experience and easily compete with the TCs for less than half the price.
If you can check the twist rate of your CVA bbl. 9.25:1 is about the slowest for a 100 gr boattail. Flat base bullets stabilize better in slower twist bbls; not sure exactly what the 100 gr CoreLokt is but many of the Remmy CLs are not aggressive boattail profiles.
My savage 10 is 9.25:1 and it loves Sierra 100 gr GameKings if you can find any factory ammo using those.
87 vmax is a fantastic bullet and just fine for deer and antelope; see if you can get Hornady factory ammo with those.