I have been reloading for only about 6 to 8 months, I load 40 cal. more than anything since thats what I shoot the most. I reload simply for the reason that I want to produce the most accurate round possible. With the 40 cal. round I have only used 180 gr. bullets in many different brands. I have successfully found a load that I am very pleased with. My question is as follows, I want to try bullets of lower weights 135 gr. , 155 gr. , 165 gr. If you could only buy one of the above mentioned weights which would it be. As I said I like the 180 but I am searching for even more accuracy, tighter groups.