that barrel is throated, not ramped. compare it to the pictures I posted earlier. not seeing the frame, I can't tell if someone has performed the ramping to the frame or not. the frame would have to be the part ramped unless the barrel is ramped, which can't be done to that style of barrel.
my suggestions on such mods, (which is after the fact in your case.) try various ammo before doing any mods, as well as high quality magazines. (magazines tend to be one of the more prevalent items that cause many various problems in 1911's including feeding issues.)
now the part I do find a bit odd, is that a pistol manufactured in 2011 was having feeding issues with JHP ammo. most modern pistols are pretty much designed for such ammo, as they seems to be what most people are going to use. and this is exactly why I would have tried different ammo, and magazines before doing any mods to the pistol. and here's another issue I have with such mods. the feed ramp angles are very critical in which to properly and smoothly feed ammo into the chamber. (notice I said CRITICAL) and this isn't something trusted to a novice gunsmith.
in design the 1911 platform is actually a very simple design, but very complex in making changes to. and too many people mistakenly see all the parts and accessories for the 1911 in catalogs and various websites that cater to the 1911, and think they can modify their 1911. they are mistaken. the 1911 is not an inter-changeable platform like the AR15 rifles. 1911 parts, or most of them are not drop-in ready. many times they need to be fitted and tweaked. and the complex nature of the 1911 is that every thing works in very delicate balance. changing one small part usually will affect other parts, and upset that delicate balance. knowing how these pistols work is a key factor in doing any mods to them. these are not pistols to be modified by amateurs. that is why there are very few pistolsmiths who are masters of the 1911 platform.
when I first got into 1911's many, many years ago, I learned a few things from a gunsmith, and over the years, found out, (the hard way, that cost me great sums of money) that true competent gunsmiths on the 1911 platform were few and far between and usually fairly expensive. most I ran across said they knew them, but in reality knew less than I did! so I started learning for myself, and figured I could mess one up on my own and still be money ahead! so I learnd from various books and modifying my own. and much of what I learned was this. the closer to stock one can leave a 1911, the better off in the long run a person will be. if any mods are made, rule out the simple things first. one thing with some 1911's, are they can be ammo sensitive. hence, the reason I suggest trying different ammo as test first. then moving to different magazines next.