I have a .20TAC and load 35 and 40gr Bergers for predators and 39Blitzkings for p-dogs. Not that the 39s won't kill a coyote, I just like a little more stout pill for them. Any of the three are super accurate and make for great point blank 300yd coyote rifle. But, my .17Predator (.17/223 Improved) with 30gr Golds actually lays coyotes out better than the .20Tac does. Go figure? If you reload and want a better wind bucker & better penetrating pill, the 40Berger is your baby. Just make sure you have a 1:10 twist tube to spin 'em. Still plenty of factory 1:12" twist .204s that might not stabilize the 40s...
Daveinjax, if we do get lucky with a run of Lapua 300WSM brass, you might want to skip the 7WSM chamber and go for a straight, necked down 7/300WSM. You'll have a more neck to hold VLD type bullets, and still plenty of powder capacity. Plenty of long range shooters doing this already with Norma brass and the 7/300, instead the more capacious 7WSM. When I built mine, Norma didn't make 300WSM brass yet, so I've eeked by with Winny stuff and found that a little TLC time with it to be well worth the effort. Clean up the necks with a spin on the K&M turner, run 'em thru the Prep Station once to true up the primer pockets and flash holes, then weigh sort and load. Sounds like alot of work, but it really isn't. FL resize every firing with a Ti bushing giving .002" neck tension set the die to bump the shoulder .002" max. to keep work hardening to a minimum. Anneal every 3rd reload and you're G2G. LOVE my 7WSM!!!