when I got my rifle it came with 50 rounds of PBA and I bought another 100 just because I thought it was a good idea...well, now I have 150 PBA pellets and I'm not sure if I should even shoot them. I read around here that they'll mess up the spring because they don't provide enough dampening...so, if I shot these PBA's sporadically until I ran out and then never touch them again, will that damage my rifle?