i thought i had pics in my photobucket account of mine and its targets, but i don't...
i have one and think the world of it - super accurate, portable, and just a lot of fun.
factory loads are available to me locally - about $50 a box. i bought a couple boxes before i started load development just to shake the rifle out and see what it could do. i ended up finding a particular lot # that shot very tight groups. i retained the lot # just in case i wanted to go back to round nose ammo.
i run hornady 300 grain btsp's thru mine w/ rl-17. i took the rifle to a sporting rifle match, and even though it was disqualified because it was too big (nothing bigger than 35 cal for sporting rifle), they let me shoot in the competition anyway because they didn't think it would be a threat. i ended up shooting the only clean target of the match in prone, and scored a 94 in offhand before i stopped shooting due to recoil (everybody else was shooting one varminter or another).
anyway, i really like mine a lot.
i don't know about this doa business... seems to me there isn't a whole lot of demand in the 375 market so they can't sell 10's of thousands of 'em anyway, but ruger sold a few thousand in the first run, and have been selling 'em pretty steady. not bad for a limited market, really. don't know if it will fall by the wayside or not, but i'm guessing it will be w/ us for awhile.
the 375 ruger will outperform the 375 h&h in a lighter, more compact package. that makes it tough to beat. finally, a 375 caliber repeating rifle that doesn't require you to have a gunbearer on your payroll.