Just a thought. Way back when, I chose the BRX over the Dasher because it was easy to make brass plus I hate just jumping on the bandwagon. For roughly 20 years it has served me well through many barrels. At the time I almost switched to the BRDX but went with the BRX. After all this time and success with the BRX, if I had to start over tomorrow it would be the BRA. They all have the same ballistics, no gain one way or the other. Brass is available for the BRA, load and fire. At 600 I would be looking at 105 to 107 bullets. The BC gain means better wind fighting, no way around it. Question yourself before moving away from what the winners use if you expect to be in the conversation.