This time of year in Ga is crow season and I try and do that every day I can. Before I realized I did not have to shoot at 1400 or higher I purchased 8lbs of Longshot. Well I found out that actually your patterns are more consistent at much slower fps. So my question is can I lower the grains in the shells down from say 30 gr in 1 1/8 # 8 shot to say 20 grains and still have an effective load. I do not have to shoot hot loads. I have no idea what the fps would be but it would be a lot less than 1400 and still kill them. Is that safe opinions please?