I always have trouble finding good home defense ammo when I am at a shop. If they have anything at all for HD, they only have one choice. I have 9 mm covered once Bulldawg and I meet up but needed to replace/refresh my .40 and .45. I went to Shuler's and found the following. For .45 they had 230 gr Federal HydraShock. I snapped it up on sight. When I looked for HydraShock rounds for my .40 they didn't have them. All they had were Federal Low Recoil (I think 155 gr.) and Hornady TAP in both 155 gr. and 180 gr. I went with the Hornady 155 gr. Was this the right choice? How does this round compare to the HydraShock? I don't know much about either other than everyone seems to like the HydraShock and Speer Gold Dots. I can't follow all the physics and ballistics stuff so in plain terms, can someone explain briefly the advantages/disadvantages of the different grain #? How will 155 vs. 180 gr. affect accuracy? Recoil? No charts and tables please, just plain English (eg faster, harder, straighter, more accurate, etc). Does anyone know anything about the Low Recoil? What would you be giving up? Is this a marketing ploy?