They are a fine rifle and most folks that have trouble with them are either overdriving them or doing something wrong with cleaning. I have seen some that had some trouble out of the box but the factory made good with them.

Mine likes a diet of 44cal bullets between 250 and 300g. I have shot nothing but loose 777 out of it for years and clean it with water or number 13 cleaner from T/C. The only loading problem I had with the thing is with the first batch of Shockwaves that came out they were over sized and impossible to load.

Oh btw after a heavy shooting session or every few months I use a bore brush with a high quality bore solvent to clean out the groove of all that plastic and stuck fowling stuff.

PS I like the .308 and 22-250 barrels I own for the thing as well.