My Spike's 16" midlength 1/7" upper fired its first shot yesterday. I thought I'd keep a log of the round count here for posterity. This was at a range, not in a class or after being dipped in mud or anything. This rifle will eventually see classes, however. This is a franken-rifle, built on a DS lower with DS LPK. All other parts are ST or Magpul.
Fired 500 rounds this session:
150 Wolf 62gr
100 Wolf 55gr
100 Fiochi
100 Norinco
50 TAP 75gr
There were zero failures or malfunctions of any kind. The latter ~half of the rounds were fired in relatively rapid succession. Mags were Pmags and 'C products'. Accuracy was shooter limited (no bench shooting, all standing).
ETA: I forgot to mention, I'll be running this for about 2500 rounds without cleaning, but I will lube it between sessions. If there's no malfs by then, however, I'll probably just keep running for double that.

