Is I got a m100 lonex Spring off eBay swapped it out with my stock Spring which was shooting 297ish and I guesses the m100 would push it up to 340-340 I don't have a chrono and went to a game today and it came in at 387 do you guys they maybe sent me a m110 Spring by accident or is that the fps a m100 would take it to in a Krytac ?