Absolutely I know that.....
Yes 1/2" + 4 oz, wow, how could anyone hunt woods with those handicaps??
.... and most come with 24" barrels in those calibers.
I would NOT know when that became the norm.
MOST S A I'm familiar with have 22". 243, 260, 7-08, 308, et.al.
Maybe the manufacturers have adopted 24" as standard in recent years. Not that I know of.
OTOH -- I really like the magnums, L A, 24-26" blls, however I want them in Lite configurations.
Not many guys like/prefer that OR at all.
Jerry
