Religious Shooter Posted February 25, 2008 Share Posted February 25, 2008 I have a new barrel. I'm probably going to put 50-100 rds through it and then chrono. As the barrel wears will the difference in velocity from the above reading (new barrel) be considerably different? To the point were I don't make major? It's a .40 S&W, using 200 grain jacketed, mixed cases, FSR/WSR and Titegroup. I'm aiming for 170 PF. Thx. Link to comment Share on other sites More sharing options...
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