I have just started reloading .45auto and have a bit of variation in the seating depth. The spec's call for 1.275 overall length and some are coming up short. I would think that being .005 inch short would not be a real problem, but how short is too short? The reloads are .45 auto, 230gr fmj bullet and 5 gr of Bullseye. It will be used in a 1911 pistol. Would the problems be with gas pressure or unreliable feeding?