There was only one height of BRNO rings when I got mine for the 602. I should NEVER have sold that rifle during a weak moment back in 1976. The high rings worked just fine, but were quite high as are the BRNO rings on my present 7x57 BRNO. this is in comparrison to many States-Side rings on the market. Problem is not too many make srings for the BRNOs, at least I don't see them for sale up here.
: I do enjoy shooting with my eyes level. I look straight at the mark, then snap the rifle up and I'm looking through the scope with the cross-hairs on the target or animal. This doesn't thappen with my Winchester or Mauser Classic stocks. I have to lower my head slightly as I snap the rifle up, but they don't hold offhand as well. The BRNO's seem majical in that regard. This sort of amining is fast, but then, it's what one is used to doing.
: I liked the po-up peep of the BRNO ZKK602 and the Express sights were zero'd for factory 300gr. fairly well.
: For scopes, I've come to prefer a 2X or 2.5X for the thumpers. They work just fine on game to 300yards if necessary, and still shoot 3/4" groups at 100 yards on bullseye targets. For lower recoiling rifles, I prefer a straight 4X for a hunting scope. Most moose I've shot have been inside 100 yards. The only one that wasn't was with an iron sighted .45/70 and it was over 300. No big deal - practise makes those fairly easy, even for the open sights. Nowadays, I like to keep everything inside 100yards. that way I won't gut shoot an animal that walks as I pull the trigger. - What an awful deal that would be.
: These are my preferences developed over 35 years of hunting big game in B.C. Canada -other people's of course, vary.
: Leaving for the bush tomorrow morning - I'll be out guiding for 11 days, see everyoen after.