Hello, I'm new to the M1A addiction and I'm looking to purchase one in the next week, but I'm unsure of which model to go with. Loaded or Standard? I will be using if for the range only. Should I splurdge the extra dough and buy the loaded or standard and add on? Is the loaded gonna pull tighter groups at 200 yrds if I do my part? What rate of twist should I be looking for? Thanks in advance!