G4F; Our goal is to produce a bullet/load combination, that will as you say, penetrate well at close range, yet, allow for controllable double action followup shots....a last ditch dangerous game load for a backup revolver. Any revolver that is capable of throwing this 405 grain pill at 1000 fps should be able to get the job done, but, there is still much work to do. Now that I have an accurate load at the intended velocity, the next step will be a trajectory plot. This load needs to be able to produce a reasonable trajectory out to 50 yards or so. Comparing it to lighter heavy weights (300 and 325 grain bullets), this 405 load looks like it will be within sight adjustment for most revolvers, and if the trajectory remains reasonably flat in comparison, this load will show much promise. Keep in mind that in tests with this heavyweight, others in our group have found that with a muzzle velocity of 1000 fps, that the 405 is still traveling at well over 900 fps at 50 yards, so, we are hopeful that it will carry good velocity/trajectory beyond that, but our goal is close range self defense. I hope to accomplish the plot this coming weekend. If all works out, then the rapid fire double action controllability tests will come next, followed by penetration tests in media that replicates the structure and mass of large game animals. When all is said and done, we will make a final decision as to whether this bullet/load is up to the job, and meets the goals that our group has set, and if so, we will share the load data here so others with a need for this type of load will have access to the information............As far as "naysayers".........I would encourage anyone who can bring forth concrete physical evidence as to why this load would be unsuitable for the intended purpose to do so. Our small group has done this before, and with well over 200 years of combined experience we feel that we have covered all the bases....enough to make a verifyable decision as to whether this bullet and load will serve the purpose it was intended for.