In another thread mentioned issues I was having getting HP ammunition to feed in my EMP. After trying 7 different loads with minimal success I called Springfield. I can't be happier with how they handled my issue. They immediately issued a prepaid FedEx label and RMA. Giving me the standard "it can take up to 30 days", they called back in 1 week saying it was ready to come back. To improve the feeding they polished the feed ramp, reamed the barrel and tuned the extractor. A short trip to the range with some of the same HP rounds yielded much better results. I had only 7 failures to feed out of 116 rounds. I'll have to run more rounds through to get more comfortable before considering carry, but happily Golden Sabres have fed with zero issues.
So, my question is what exactly does it mean that they "reamed the barrel"? How does that help rounds to feed? Thanks!