I hate to see this happen, but I think all manufactures are the same and try anything to get out of warranty work. I purchased a Ruger Hawkeye FTW stainless gun, as at the time it was the only stainless left hand 6.5cm gun on the market. I paid $1100, and it shot decent but not great.
The problem was the action ran like crap, the bolt lift was terrible. the entire action/bolt was media blasted so felt like i was rubbing sand paper while cycling the bolt. I've had many m77 MKII actions which are great and smooth. So sent it to ruger, and they wanted to charge me to replace the entire trigger assembly since i lightened up the spring from their factory 6 lbs... They said this was the cause of the hard bolt lift.... Then shot a group at 50 yards and said its shooting 3/4" and is a great gun.... After talking with the gun smith he admitted the actions were terrible how it ran being bead blasted, but was nothing they would do about it. Pretty disappointing when they sell ruger americans for 1/4 the price which shoot and cycle better!
I also bought a Stag AR-10 that had issues with a rough chamber and cartridges sticking in it, making it difficult to impossible to cycle. I sent it back to stag, they opened the box and immediately denied warranty and sent it back with out even looking at the issue. Reason being is i had put a butt stock and grip on it.... Well i bought the gun as a "bones" kit that comes with only an assembled upper and lower with no butt stock, grip, or forend... That stuff is sorta important to be able to fire the gun....
The moral of the story is from my experience all big gun manufacturers are the same, terrible customer service that will try to deny any wrong doing any way possible.