I don't have any .30 carbine experience at all but the idea's intriguing. I can however attest to the quality of OLY's products. My brother and I did the initial break-in on our new rifles this past Tuesday. He's got a new RRA M4 and mine's a OLY PCR-4. Since we were faced with a session of cleaning after every shot or two for the first 100 rounds, we got a couple of friends to help out and we all took turns shooting and cleaning both guns for a couple of hours. Both guns performed flawlessly the whole time. The only thing I liked better about the RRA was it's trigger. That's not to say my OLY's trigger is total crap, It's a typical battle rifle trigger but the NM two-stage in the RRA is SWEET! It spoiled me so much that I now have to shell out about $100 to replace mine and as far as I can tell RRA puts these in most of their line as standard equipment. I've spoken on the phone with people at Olympic a couple of times and they seemed willing to spend whatever time needed to answer all my questions and were courteous. I have'nt shot for group yet but I've heard form other OLY owners and read in these discussions that OLY barrels enjoy a reputation for accuracy. I sure hope it true! Finally, they back up their guns with a lifetime warranty. Furthermore, they offer a 60 day money-back satisfaction garrauntee! This comes straight off their website...
"we guarantee complete customer satisfaction. If you are not completely satisfied for any product or warranty related reason* with anything purchased directly from Olympic Arms, simply return it to us within 60 days along with a copy of the original invoice, and we will be happy to provide you with a replacement of equal value, in-house credit, or a refund** (S&H Charges are not refunded), your choice.
This Satisfaction Guarantee also applies to all firearms purchased through an FFL dealer. If within 60 days from the date of the purchase of the firearm from your dealer you are dissatisfied with your purchase for any reason, your dealer may return it to us for a full refund of his entire purchase price (S&H charges are not refundable). No problem."
Hard to go wrong with OLY IMHO. Sorry for writing a "book" here![:D]