I'm actually surprised to see the .30 rem and .35rem on "the not recommended list".Remingtons 141 pump in these calibers were very popular elk cartridges between both World Wars.If you can dump elk you can dump a moose.With the improvement of bullets and better powders Ill take it for what it is, "paid opinion."Ballistic charts can tell you what should work but field experiencewith the rifle make speed and energy figures fly out the window.
I'm actually On a quest to find out what calibers have wounded the most game in the last 20 years And I am willing to bet the .338 is just as responsible to wounding as is the 3006 300 win mag .270 and every caliber under.My point is this, it isn't the caliber of gun, it comes down to bullet performance, and marksmanship which also includes using the caliber of choice to it's effective range and not beyond.That's the fault of the shooter not the caliber.I have witnesses more animals shot and lost with the .300 Wthby Mag than anything else but it was the guy behind the rifle not the
caliber.Inexperience at field judging distance and holding too high or not high enough is his biggest setback.