I would like to know how accurate your CZ 527 in .223 REM is

Mine is 9 years old, got 5 cans (2.5 Kg) of AA 2230 burned through the bore and groups 0.7-1.5 MOA @ 5 shots (depending on the state of mind of the nutcase that pulls the trigger)

How accurate is yours and what do you feed it to keep you happy?

reindeer: I have kind of a strange CZ 527 in .223 Remington. By the way, it will put five 50 grain Hornady V-Max bullets in front of 27.5 grains of Winchester 748 into a half inch circle at 100 yards, day in and day out. For grins one day. I shot the same spot 20 times. The first 13 knocked a nickel-sized hole out of the center, so I just aimed at what I thought was the center of the circle. At the end of 20 shots, the overall group was just a tiny hair over one inch. My rifle is the Lux model. However, I had troubles finding the scope picture fast with the Lux model stock, so I bought one of those CZ-USA fancy grade American Walnut aftermarket stocks for $260. That stock needed some work, as the Lux models have the rear sight band and the American models do not. I had to inlet a bit on the barrel channel to get the barreled action sitting right. I then glassbedded the action area and the barrel channle. After that was done, a gunsmithing buddy said he wanted to try to pillar bed it, so I let him. The barrel is freefloated just about the width of two one-dollar bills. It is one tack-driving little rifle. I have it topped with a huge, Simmons Whitetail Classic in 6.5x20x50 and even though it is a Simmons, it has served me well. By the way, that 20-shot group ws done with proper cooling between shots so the barrel was just a bit heated, not cold. After shooting a group I would put it aside and shoot my CZ 550 American in 7x57mm until the CZ 527 was cool. I tried AA2230, but could not get the bullets (50 gr. V-Max and 50 gr. Sierra SX) to group worth a darn. H 335 shoots almost as well as the Winchester 748 in my rifle. Hope this helps. Tom Purdom

I have an early rifle before cz-usa had a web page or catalog. After floating the bbl it shoots cloverleafs at 100 yds. with Sierra 55gr HPs and about 24gr of 3031.

Rich

tom...that combination of 27.5 grns of w748 and a 50 grn bullet works for me too. i'm using my small supply of old nosler 50 grn solid base bullets or sierra 50 grn"blitz" bullets. my 527 american has shot 6 consecutive 3 shot groups all under .5". since that day i haven't shot paper with it.

My CZ-527 American likes either 27 gr of W-748 or 28 Gr of H-335 under a 50 gr Ballistic Tip or V-MAX or Speer TNT. (My rifle shoots them the same.) It will put them into 1/2 to 3/4 inch. A grain more of either powder and a 40 gr bullet shoots just as well.

Mine does well with the Hornady 55 grain soft point and 25.5 grains of Benchmark. I use military cases and winchester primers. OAL of 2.223". I want to get some surplus powder and try and work up some loads.