I think the easiest way to fix this problem is to buy some WWB or Remington ammo. Some folks on here will disagree with me on ammo preference, but IMO, if you avoid Blazer, you'll avoid a lot of issues. I don't like it because I have seen too many malfunctions with it. They include FTF, FTE, Jamming, bullets falling out of improperly crimped cases in a revolver, and various lengths of the same ammo which caused a revolver to jam (some were too long & kept the cylinder from rotating). These were all first-hand observations, not some story relayed to me by some guy at some place who's brother's cousin once read something on the internet. I don't care for Blazer, but I am not trash talking, just saying that I think it's related to the ammo. That would be my first instinct.
I would change ammo before trying to modify what may be a perfectly fine pistol. Look at the ammo & compare it to a box of quality ammo. Look at overall length and diameter. If different ammo doesn't help, I would next look at the magazine. Weak magazine springs can cause a lot of issues. I put the odds of fixing this with different ammo around 3:1.