A friend of mine has one of the old stle Marlins 336 in 35 Rem. $500.00- pricie, it has the 6 groove or what ever it is. How does this old style shoot cast bullets compared to the micro groove, I have my 3 rd. chemo Monday, If my cat scan looks good and with yours prayers working and the good Lord why I just may buy it and new pocket knive. Thanks for thinking of me, Joe