The sleeper is almost impossible to miss with especially on such a larger target. Mind you its not perfect Untill you've done it a few times. Testing was easy just use 15 shots out of the 1k I stead of all 22. The sleeper holds 12 max those 12 alone do more than spindle. And with the upcoming stability nerfed and scope range increase it'll probably be a must. After 2 rounds with my load out you will do about 500k to 575k.