From a first hand personal experience, when LA allowed crossbows any time my older brother bought one. He first shot a pig with it then later that year got a deer. He said that it was still challenging because the deer has to be close, closer than he needed them to be with his muzzleloader. Due to the new challenge and ability to hunt deer with a bow, he sold his muzzleloader and now either hunts rifle or crossbow. He usually limits himself to 3 deer per year, one being a management doe on his brother in laws hunting club. In LA the deer season is roughly 4 months long with a season limit of 6 and a daily limit of 2.