Glad it's improving for you. When practicing with my two .22lr, if the wind is >5mph, I don't shoot. I worked my way through probably 20 lot numbers per rifle before I found the cherry load for each. What ended up working for me was SK Standard Plus for one rifle and RWS Rifle Match for the other. Luckily, they weren't the most expensive I tested. I stocked up with 10k of each lot number. I can shoot up to 90 yards in my backyard, but always shoot from 50. I adjust a quarter inch up and to the right so I don't obliterate the bull, and 5 shot groups with each rifle are easily covered with a dime. If a fly lands on my target, it's toast... well, at least a black and red smudge, lol... I made my own target in Word and it's 6 rows of 5 dots on standard 8.5"x11" paper.
1710 DHB - SWFA SS 20x42 fixed
1712 Silhouette - SWFA 5-20 variable
If after a thorough search for ammo, you can't find one that at least cloverleafs your groups at 50 yards, you need to seek assistance from Anschutz. BTW, my Anschutz rifles have never had a copper clad round fired from them. If I were you and wanted to shoot the high velocity stuff, I'd buy a CZ Varmint. I went through 3 CZ's before I gave up on them for precision. In my experience, with the 452 and 455 CZ's I tried, they're accurate enough to hit the target, but not precise enough to put bullet after bullet through the same hole - no matter the ammo I tried.