Re: PA deer load for Remington 308 16.5" barrel
For the 308 Varget, RL15 or IMR 4895 should get you were you want to go. With the 308 you really don't loose all that much velocity when you start shortening the barrel like some other calibers.
I have a 20 1/2" barrel custom 700 in 308 that I have found is a real deer killer with 46 grs IMR 4895 and the 125 gr Nosler Ballistic Tip. This is a game bullet and not a varmint bullet. I use it in all my 30 cal weapons. Just keep impact velocity under 3000 fps and it really kills deer in their tracks.
Not sure about PA but check you states regulations. Many states don't allow suppressors to be used for hunting.