It us rolled out very flat on a polished concrete perfectly level flat floor. The ball does not roll out straight though and in places tends to wander off line. I offered to video the issue but the manufacturer doesnt care. It does not look like a settling in issue but i guess time will tell. I guess i will still use it for range but i have no faith in it for line. I am very dissapointed in it and wish i had have paid a bit more and got a better one. Though my first choice was more expensive and green , this one better match my colour scheme but the GREY isnt worth it for the poor roll
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