Unclenick,
My CZ has a lot of rounds down the tube (6100 rounds) and I don't use it much anymore.
Even then, it still shoots about the same.
I recently experimented with 77 grain Sierra bullets after I found my Savage 12 FV .223 with a 1:9 twist shot them best.
I was surprised that the old CZ 527 shot them better than the 69 grain Sierras, just like the Savage. The CZ still shoots great, but I don't load near Pmax and I keep my barrels clean of copper.
I haven't found that .223 cartridges are hard on barrels. My new Savage 12 FV already has almost 4000 rounds down the tube.
I'm not sure that I am a good enough shooter to notice the difference.
A superior shooter might be able to see a slight drop in accuracy.
But those most recent groups with the 77 grain Sierras were some of the best groups I ever shot with the CZ.
My CZ has a lot of rounds down the tube (6100 rounds) and I don't use it much anymore.
Even then, it still shoots about the same.
I recently experimented with 77 grain Sierra bullets after I found my Savage 12 FV .223 with a 1:9 twist shot them best.
I was surprised that the old CZ 527 shot them better than the 69 grain Sierras, just like the Savage. The CZ still shoots great, but I don't load near Pmax and I keep my barrels clean of copper.
I haven't found that .223 cartridges are hard on barrels. My new Savage 12 FV already has almost 4000 rounds down the tube.
I'm not sure that I am a good enough shooter to notice the difference.
A superior shooter might be able to see a slight drop in accuracy.
But those most recent groups with the 77 grain Sierras were some of the best groups I ever shot with the CZ.