I have several 20BR's and agree that several powders do well. The VV powders are best in my guns, N-133 is very clean and accurate but velocity isn't quite as good as N-135 and N-140 which are my favorite. N-540 has the best velocity (accuracy right up there too) but I favor the other two powders that burn a bit cooler for (hopefully) better barrel life. I too use Lapua brass, Federal primers but I like Sierra 39 grain BlitzKings. The Berger bullets shoot as well and in some a tad better but the Sierras have a better BC, are much more explosive on prairie dogs, even cost less. Never could get any consistency with the 40 V-Max beyond 200 yards. Have fun with the 20BR, there's a lot to like!
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