I always thought that the old weight was 45 lbs which I shoot and 50 on buffalo. I do not think 30 lbs is enough for shooting big game not even javalina they have very tough thick skin that is tough to penetrate. I guess maybe some of the newer compound bows with a faster F.P.S. it might be possible but I would not even try less than 45 lbs with my Mathews Outback over 40yards. Since they do not specify which bows I could not imagine a 30 lb recurve shooting a big game animal over 30 yards.