I have shot 30.2 gr of IMR 4895 with a 50gr Nosler Ballistic Tip in one of my .22-250's for a wile and my last couple of times out I have noticed the groups have opened up quite a bit. This rifle has been in the 1's and 2's for it's entire life and now I have a hard time putting 5 shots inside a 3/4" circle. It's not the scope or bases, or rings or stock or screws. This barrel doesn't like to be pushed fast and doesn't like anything over a 50gr bullet. 1:14 twist A&B stainless, fluted barrel from years ago. What is the round count you ask? Pretty close to 1,500 rounds to date from me and I bought it used. It doesn't copper so I know that's not an issue. Did I finish my very first barrel?