I have a no1mk3 smle 303 i am going to use as a back up gun for a deer hunt coming up next year.I am using my brno 602 300wm as main gun.Its loaded with 220 gn partitions,I am looking for something to use in the 303 in a 170 to 180 gn projie.What do you fellas suggest?The deer i will be hunting are sambar.