Re: Remington 504 22 cal
It depends on whether it is a sporter or "T" (target) model. I assume it is a sporter
or you would have specified. If it is a target model, the chamber is pretty good as is. If it is a "sporter", and you really want a high level of accuracy, Lilja makes a replacement barrel that is expensive but very high quality.
Also, if you are serious about accuracy, and willing to pay the price, get some Eley
Tenex, or Lapua X-act. All hypervelocity .22 ammo is pretty inaccurate, and the
so-called "target" ammo of domestic manufacture is pretty poor. Also, although it
is just my opinion, free floating the barrel almost always produces the best accuracy.
Look at what benchrest shooters use.