If you are planning to use the OTM for hunting you may want to re-think that. I used them for two years and had too many pass-throughs, luckily we never lost a game animal. I had used them when they first came out and they worked fine but the next 250 I bought gave me the issue I stated earlier. That's why I went with the Elite Hunters. You should be able to reach your goal of 3250/3300. I pushed the the 300 Bergers to 3375 with 147 grains of 50BMG but it wasn't worth it, the barrel was toast around 1000 rounds.