I would look at your seating die as that might be the reason for the bullet bulge. Have the main part screwed in too much can cause excessive bulge. If you back it out though make sure you adjust the top screw because your OAL will change. Too short OAL might be the cause also, what are you seating them to?
Really your best option for lead load data is going to be the Lyman reloading manual. I don't have one myself because but my local library has one so I make photo copies as needed. Don't have the 40 S&W pages though.
If they chamber easily, then don't sweat it.