...you can cut down 9mm luger 1 mm to use my old brass
I'm not a reloader, so I'm very far removed from being any sort of expert, but...I am aware of the general dimensions of these cartridges.
The 9 X 18mm Makarov cartridge has a bullet diameter of 9.27mm (.365 in.) and a case neck diameter of 9.91 mm (0.390 in), while the 9mm Luger/Parabellum/NATO cartridge has a bullet diameter of 9.01 mm (0.355 in) and a case neck diameter of 9.65 mm (0.380 in). There are further differences found at the rim of both cartridges. Again, I'm not an expert in this area, so I don't know how much difficulty these variations would cause. My point is that there is more difference between them than purely 1mm difference in the case length, and I'd advise caution against merely trimming 1mm from a 9mm Luger case, loading it up, and sending it through a 9x18mm pistol.
Aside from that...I too am a great fan of the 9x18mm Makarov cartridge...or more precisely, I'm a great fan of some of the pistols that are chambered for it.
Some years ago, IIRC, I believe that J&G Sales was selling the P-64s for around $160 or so (maybe it was closer to $175, as mentioned by
RobzGuns, I forget now), so I picked up a handful of them. They looked brand new, and are excellent little pistols. I also have a half-dozen of the EG/Bulgy/Chinese Makarovs, and a sprinkling of CZ-82s, and a lone PA-63. They're all excellent pistols, with the PA-63 being the "worst" of the bunch, IMO...but still a decent enough light-weight little gun.Luckily, I picked up multiple cases of ammo back when it was going for $7-$8 a box, so I'm well set there.
I thoroughly enjoy all of my Eastern Bloc pistols. Great fun, and very usable guns.
Tim