1. Make the fonts different weights on the stats:  Either the categories (Cost, weight, damage, etc) bold and the actual values a standard weight or vice versa.  Personally I'd go with the former.
2. You can drop the "Name:" title and just put the name large, bold, and centered at the top of the box.
3. Make the picture bigger if you can.

Version 1.1 and yes I've changed some of the description.

Actually, I'm trying to compile the weapons (I can draw) from the magzine at the moment.  I have yet to try them in Word, so I don't know how many I can get on a page.  The layout for each card is standard that is why SEU is on the card.   Being ex-military, I dropped the last range band because pistols have a maxium range of about 75 meters (their are exceptions, I know this because I own a pistol that fires a 30 caliber carbine round and I could hit a target at 150 meters (5 out of 8 times with regular practise)).

1. I don't think there is an s on the end of kg even in plural and it shouldn't be capitolized (the kilo prefix is always lowercase). This page http://englishplus.com/grammar/00000058.htm says it's sometimes used but not needed. 
2. I'd call out the ammo cost as 2 Cr/clip (or magazine if you're using that terminology as in the ammo section).  Whichever you use it should be the same in both places.  The game rules uses clip so you might want to go with that.

As to size, they are almost business card proportioned so you might be able to get 10 per game if you don't want them big.  Otherwise I'd guess 8 to a page.

Version 1.1a

love it

I'm having issue fitting in the ranges because of the font size now, which is Arial 12 pt.  The stat titles are Arial 12 pt bold.  if you have a suggestion for a better font, I'm all ears. 

I'm using Neopaint by Neosoft.  I like it because of it's easy of use.  I'm running one version behind the newest one they have.  But I own them both.  It's a good program for $50 US.

And per Abub request, I'm maintaining the stats from the magazine when creating these cards.  Issues 1 and 2 are done with the exception of the Wrist Rocket.  I'll have to play around a bit because I'm a mechanic drawer and not a realistic one.

Here are three cards.

Use a mail merge. Don't create each card separately!

Stromcrow: The program I use allows me to create a picture and store it in a file which the program calls a stamp.  These stamps are reusable and can be called up at anytime.  So all I'm doing is pasting the card drawing and inserting the information and the weapon drawing into the correct spot and I have a finished card. If I used my own drawings I could have had most the card done by now.  Instead, I'm attempting to create a representation of each drawing in the Magazine.  I'm a technical drawer and not an artist.  That is why the Wrist Rocket hasn't been done yet.  I couldn't draw figures as a child but could make mechanic drawings.  My brother had that talent.

AS of this moment, I have 9 cards complete and working on another three.   I finish three in about an hour.  If I didn't work for a living, I could make 10 aday without breaking a sweat.  To me this is just relaxation and fun to do...