ok i am buying a tc triumph in sept
a omega bdc scope and the 250 grain shockwave tc sabots due to there easy to load in the triumph

they recommend a 150 grain laod with the 250 grain sabots for the scope for deer
should i just start out there and see what happens
or what
the scope is set for 100 200 225 and 250 for the load so it worrys me that changing the load size will throw all that off

i will be hunting deer with it i do not want to shoot 225 or 250 but if i see a big deer i might

what should i go with