Hi, I have two Remington 504 rifles. One is a 504T LSHB in 17HMR, and the other is a sporter in 17M2. I like the Remington 504 very much. I think that they have a nice flush fitting magazine, a very good fully adjustable trigger, one of the smoothest rimfire bolt actions I've encountered, a classic stock design with good dimensions and checkering is quite nice. I once owned a sporter 504 in 22lr, and the accuracy was minute of squirrel ok, but didn't keep up with other bolt action 22's that I already owned.
After all this rambling on, one of your questions were "can I compete with it". I'm assuming that you were referring to one in 22lr caliber, and if that's the case, there is a fair chance that the answer could be no. I think they are a good rifle, and I don't want to part with either of mine, but that is an honest answer.