Vanguard Electric Speedloader PROLoading mid cap magazines by hand is the most time consuming thing you do between games. The Vanguard Speedloader Pro eliminates it entirely loading at 25 BBs per second with precision counted output, zero spillage, and enough BB capacity (10,000 rounds) to see through an entire event without a refill. The Black Pro is the flagship model in the Vanguard range, built to a professional standard with a reinforced pump mechanism, extended battery life,