[Quote]But in some day it would be nice to make one light and handy rifle to MAS 36 action. Caliber could be 7x57 or 6,5x55....

Light rifle on a M 1936 MAS action? According to Frank de Haas,"Bolt Action Rifles", the MAS action weights 51 oz = 1446 gramm, while the standard Mauser 98k large ring action is 45 oz = 1276 g. A small ring Mauser 98AZ action would be even lighter. It will be difficult to build a light rifle starting with an action being 6 oz = 170g heavier.