Are your loads for your primary gun your "accurate round" for that gun, or is it a plinking round just for shooting? The reason I ask is if that round has been specifically tuned for your 224, then they will act differently in the glock. This comes from not only gun design, but the small things, like differences in the guns that could only be seen by a micrometer. Now with the new GEN 4 glocks they put tighter springs in them, they don't shoot certain loads very well, they work better with higher quality loads (they don't like cheap ammo).
.40's buldging, I own a glock 22 (older generation), never had a problem with buldging in store bought or reloaded ammo. But if buldging is what your worried about, I remember seeing it on midwayusa, its a die that you can run your .40 casing through that will remove that bulge. I was considering purchasing one for mine just in case. But if your casings are buldging look carefully and make sure their not splitting in the buldge, might mean the load is to "hot" and you may need to back the load down a bit. Hope this helps