Well, the 200 eld-x is a typical hornady...
I just popped off a .7 moa 5 shot group at 200 yesterday with my new 300rum using the 200 eld-x and 99gr rl33 in rp brass with a 215. Zero load development, simply seat the pill to fit the mag and let her buck with a healthy charge of powder.
Now .7 moa doesn't sound great until you realize I had a full inch of crosshair dance in the mirage from barrel heat in the 15 degree air. The humidity was high enough to see your breath so any more than a couple of shots were inducing nasty mirage. I simply sighted the rifle in with a new scope using another load, let her rest 5 minutes, let her buck with a fouler using the 200 eld-x/rl33, then went to work on the group...
I'll now load a few boxes of the load up and wring her out for average accuracy and load performance. I already know this pipe likes the 180 hdy interlock so the 200eld-x would have actually surprised me if it sucked.
I need a box of the 212's in 30 cal. and a box of 175's in 7mm to wring out a couple of other pipes.... It's game on for Hornady.