The second rifle achivement should not have to take 40 hours of constant fireing. look:
10 bullets + reload times = 15 secs (ish)
15/10= 1.5 (shot per seconds average)
1.5*98,000= 147,000 (seconds for whole thing)
147,000/ 60 = 2,450 (minutes to complete)
2,450/ 60 = 40.83333333... (hours to complete non stop)
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