I took a Blaser with 30/06 and a 375 H&H barrels, and hand loads for both — 168-gr TSX’s and 270-gr TSX’s loaded respectively. I started and finished with the 375 and had a ball with it but both cartridges were very accurate in the Blaser, and the ‘06 would have been perfectly fine.
I’m glad you got the 375. Frankly the 300 RUM made me shudder as in any kind of heavily brushed country, you just don’t need it, though I’m sure there are applications for it somewhere, and.. it’s just my opinion.
The beauty of the 375 is not that it’s needed but that it’s just not too much either. I took most of the plains game with one shot with the exception of a gemsbok which I hit a bit too high the first time — their very long spinous processes give it that very deep chested look, even though their chest area, top to bottom, is not abnormally sized.
I’m sure there are many good OTC 375 loads that would work fine, but I found the 270-gr TSX about perfect for the 375.
