OK, new update, if anyone cares... 432 shots and 4 misses. It seems that I'm just getting sloppy whenever I miss. I'm trying to work on my form so that I do the same thing each timeto consistently hit. Maybe I can make it to 1000 without any more misses...yeah, right. I did have to reserve my string @ 384 shots. Still using the same bolt and it's doing fine.