Depends on size of rifle bore but a 20g brush is perfect for a 600NE and a 28g brush is perfect for 505G / 500 J / 500NE rifle . I’d guess a plastic 28g brush would also work in a 470 or 475NE as well .
I found some 500 NE jags and nylon bore brushes at Deweys. Im using some serious cleaning products that remove a lot of copper.
Kynoch ( Kynamco) are out of business . I got all my big rifle brass jags and brushes from them . Also my snap caps . No idea where to get this stuff now .
@Buck51 Trader Keith has great stuff. Send them an email first on what you want and they get back to you.
Beware of spotless cleaning, I did the same thing when I got my .470ne and took all the copper out of the bores; then had to shoot 10rnds through each barrel to get the groups to return to normal.
