Home Forums Reloading Varmint Rifles 221 Fireball velocity/pressure question

I use my two 221 Fireballs for ranges out to 250 yards. In the spring when the wind is down in the morning the 35 VMax with 15 Lil Gun gives me around 3370 fps and the 40 VMax with the same 15 Lil Gun gives me 3300 fps. When the wind gets up it time to change to 6 x 45 or the 6mm PPC.

Will