Re: Another 7mm-08 Load Question
Looking at your son's senerio, he may have hit the point of her shoulder, of which may not have allowed the bullet to penetrate. Possibly Just created a flesh wound and maybe a broken bone.
The Sierra 130gr SSP bullet is designed for handguns chambered in rifle calibers (ex.Encore/Striker in 7mm-08 and 7-30 Waters). This bullet, in my opinion is way to soft for rifle velocities. I understand you load for a 15" Encore, which this bullet is fine for that application. For your rifles, I would opt for a stronger bullet design.
Siera 140gr Prohunter
Hornady 139gr BTSP
Nosler 140gr Ballistic tip.
All of the above are great bullets for whitetails. IMR4064 will serve you well with all of them as well. My favorite load for my father's rifle is a 140gr Prohunter over a pile of 4064. Many deer have taken the dirt nap to that load.
Slow is smooth, smooth is fast, fast is deadly