Not long range yet, trying to help a buddy out. He sent me this picture of a 10 shot group by a new shooter he's mentoring. First six shots touching last four are the fliers. Rifle is a .243 Win bench/LR varmint rifle that weighs nearly 13 lbs shooting 115 grain BN coated DTAC, and shots are at 100 yards. I'm thinking new shooter lost concentration after the first six, he thinks it's copper fouling. He asked help with diagnosis but is in MO and I'm in CO.

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Rifle is a Stevens 200 with McGowen 1:7 twist heavy varmint barrel bedded to HS Precision stock, scope is a 6.5-20X44 Vortex Viper. I know he's using RL22 just don't know the charge. I sold my buddy this rifle and I was shooting .4 MOA at 300 yards for five and had no problems ever ringing MOA steel targets or prairie dogs at more than twice the distance. However, I was shooting 115 grain Berger VLD .130 off lands.