>I loaded the following:
>100 Berrys 115gr FMJ over 4.0 grains of Bullseye
>50 Hornaday 90gr XTP JHP over 5.0 grains of Clays Universal.
Berry's are plated bullets and should be loaded like lead bullets--not like jacketed bullets.
Next, one should consult at least two different sources and begin loading at the lowest starting load you can find. You are NOT using the exact same gun or the exact same lot numbers of components, so your max load may not be the same and may, in fact, be reached at a much lower charge weight. Look at the load variations in various manuals and you'll see how important a change in component lot numbers can be.
4.0gn of Bullseye and a 115gn FMJ-RN bullet is MAX in at least one manual. Starting load should be 3.5gn. There are higher starting loads in other manuals, so you are "probably" safe, but...
5.3gn of Universal is max in at least one manual, where starting loads in several manuals range from 4.5-5.0gn, so again, you are "probably" safe.
Cartridge Overall Length (COL) is important for all loading, but critical for .380 Auto, 9x19, and .40 S&W. You must be sure your COL in no shorter than listed in the manuals you are using. Pressure goes UP a LOT faster as COL goes down then pressure goes down as COL goes up--so, you can use a longer COL and not lose much if any velocity, but you can get in serious trouble fast as you shorten COL. What COL did you use and what was the COL in the manual(s)?