Just a clarification on my previous comments. I'm not endorsing one size over the other but just pointing out there's almost no difference in the trajectory out to at least 150 yards and further. So pick the one that shoots the most accurate and will do the job on whatever your hunting and don't worry about the trajectory until it gets beyond the point blank range your set up for. Beyond that just be aware of the drop and it's not that hard to compensate out to 200 or so yards if you know the range.

For me I shoot both plus I'm liking the 200SW more and more. It carries similar energy to the 300SW due to it's higher BC when launched with similar powder levels and gives me about a218 yard 6" PBR with 130 grains of pellets. I also like shooting the heavy 460's in my gun and with a 6" PBR of 148 yards it's only down about 15" at 200 which is fairly easy to compensate for. That load still has 1000+ fp energy out to 375 yards, longer at higher altitudes.