Hey, up in Forestville. I just passed through Forestville twice last weekend on my way to Guerneville.
Bullet weight and staying power is a subject that I have studied heavily for knocking over steel Ram Silhouettes at 500 meters with a 7-30 Waters, 7mm BR and 7mm TCU in Contender 14" and Encore 15".
I have noted that most hunters declare they use 120 and really stepping up in weight to 139 or 140 grains.
The Hornady 162 gr BTSP is an interlock type bullet and it stays together better than the hollow points or the 162-grain Amax. I shoot a bunch of Amax bullets and I currently have a supply of over 1600 of each BTSPs and Amax.
I have a theory on bullet weight that differs from some. If I were going for a hog with a 7-30 Waters, I would go with the 162 gr BTSP Hornady for the retained energy on impact and penetration. Out of a 14" Contender the 100yd velocity will be 1854 fps with retained energy of 1236 foot pounds and a retained momentum factor of 1.33 according to Sierra Software.
At 200 yards, the 162 grainer only drops to 1,058 foot-pounds of energy and 1.23 momentum. With a 200 yard zero, the bullet will be 4.32 inches high. That is minute of Hog out to 200 meters.
You will have to get up to 2200 fps with the 139 grainer to match the energy and drop of the 162 grain. Momentum of the 162 grainer will give the best penetration and hang time on the target (Hog).
This should bring some of the light bullet aficionados up.
Harold Clark