Yesterday I had some spare time and I managed to take HK45C to the range. Unfortunately there is no .45ACP ammo avaliable in my area now, so I used leftover of old 230gr Geco FMJ that I have after IDPA match. This is rather hot ammo. At least friends who shot it more told me so. First of all, standard HK sights (same as in P30/P30L) are not good for precision shooting. I think of getting Heinie Straight Eight sights. Those are combat sights as well, but I believe those will be more defined than stock sights.