If the recoil is a little excessive with the pistol, Wolff sells recoil springs for the pistol up to 13#. I believe it comes with a 9# spring as standard. I own a Keltec which is basically the same with a few less frills, and had to go to a 13# spring from the standard 11# to accommodate Hornady TXP ammo. I still may try a 15# before it's over. You will beat your hand and the pistol to death with to small a spring in those micros.