I need help in deciding between the two. This rifle will be used for target shooting (out to 500 yards) most of the time and used for varmint hunting. The two I have it narrowed down to are a Rem 700 sps tactical with a 20inch barrel with 1in9 twist sitting on a manners t4 stock I already have, the other a DPMS 16inch bull barrel with a 1in9 twist. With 1in9 twist I was hoping to use a 75 grain bullet.