It's easy to find all this out by using the Berger ballistic program. Just plug in the numbers.

Based on using the program considerably (along with others), you'll find high-BC 6.5 bullets in the 130-grain range will drop and drift less in the 6.5 PRC than similar bullets in the 140-grain range at 400 yards. The heavier bullets start gaining beyond about 500.

I haven't shot a big game animal at 500 yards for quite a while, which is why I use higher-BC bullets in the 130-grain range in my 6.5 PRC.

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