If you're looking to shoot out to 150 - 200 yards, I'd highly recommend checking out Precision Rifle - www.prbullet.com

They have a wide selection of bullets that are very accurate and designed to shoot at long ranges. Only downside, they tend to be very expensive[:@], especially after you through in the $10 shipping charge.

Shockwaves or SST's are another option for long range shooting - they are cheaper and tend to shoot accurately in most rifles.