Polishing the feed ramp will generally cure both problems. The little nicks are sometimes called smilies and occured with some LCPs. I bet if you take drimmel tool with a buffing cone (it is about the size of a .38sp cartridge an about 1/2 as long) and polish the feed ramp and around the breach things will improve. You don't want to remove any metal. You simply want to make the surface have a mirror finish. Polish, wipe off, polish, wipe off etc. Look in the KTOG forum for more detailed info.
I don't think your problems are as bad as they appear.