I for some reason have been oblivious to speers short barrel line of ammunition. Which for example is tested/created for a 3.5" barrel in 40 s&w or any barrel that is short where velocity can in fact suffer a small amount for this reason. They have it for 9mm, 38, 44 etc and I believe designed for greater expansion with these shorter barrel guns. Very cool great for snub nose guys and or 26/27 carries and such so I thought I should put something out there. I guess this line came out in 2004 designed to expand more quickly. Designed "for the backup gun" and to be less snappy with the smaller gun for better follow up shots. Anyone out there have any experience with these short barrel rounds?