Wolfie has something to say regarding this, actually.
I find two things with blasters... and indeed, most weaponry in general in the game.
____ _ _ __ ___ _ _
POINT ONE:
It is possible to have a REALLY bad aiming day. It's a chance, hit or miss folks. That's how the program is.
I used my Leveling Gold on E when I was bored. ^^ Didn't get too much out of it on that day. Rats!
We all miss sometimes you know.
POINT TWO:
O_O I have noticed that if you bring a weapon to bear upon something that is a significantly lower rank than you are, you have a tendency to miss a little more. Perhaps this is such that you don't all storm those earlier systems in your X-snipers and whatnot.
Or perhaps it's just POINT ONE in action at coincidental times! ^^
POINT THREE:

I can't even explain how many criticals land during a vega CQ. That vega vendetta blaster is definitely packing a far higher critical percentage then the blasters preceding it.
I notice this less with the Gemini Geiger Blaster... but only when I'm in gemini...
THEREFORE~
Could enemies in the higher systems have a fair deal of resistance to a critical hit?
Better aimcomputers may fare better against said resistance, if it exists.
Or it could just be POINT ONE in action again... I can't say.
POINT FOUR!
Have you tried donning a substandard blaster (just for a good kick ^w^) in recent days?
Perhaps you should. It's critical rating is off the freaking walls. (If you try it on vega 1. This remains untested upon other planets).
Remember those vega days, when you heard that musical "pphhmmmm!" so often?
Saw the brilliant flash and wondered, "Gee, what is that heralding?"
Compare it to how little you see of it now. The better the blaster, the lower the critical rating? That's what the visual elements that I can pick up on are telling me.
Nobody can truly say for certain. However, what we do know is that we certainly nailed those critical hits in the last system with that systems aimcomputer... and sometimes without it.
So is it related to our weapon power?
Or does the key to this lie in POINT THREE?
Or is it just POINT ONE in action again, again-again?
I've added my musings for you to ponder. Call me a noob if you wish. (I'm in gemini... so I'm new. Lol ^^)
But I've only placed what I have noted upon this board for your consideration. It's all based around coding that I don't truly know, so don't choose to believe any of it just on my say-so. Someone who knows more about this has to be the one to tell you if Point One is not the answer!
I just listen to my senses. I haven't been to Sol. The above may or may not apply there.
But Point one, will always apply. That's where my beliefs lie as of the current date and time.
Wolfie - Once missed 19 shots in a row. My friend lol'ed himself into a coma. ^^ ^^ ^^ ^^