TC260,
I have that exact same rifle and it is MAGIC. 175 NPT will work fine out to about 400 yds. The only problem with the LRAB could be with your twist, I've read that some Rugers are 9.5" which probably won't work, if you have a 1 in 8 you are golden.
I haven't tried the Hornady 175...
IMHO there is only one word you need to know when talking about scopes:
LEUPOLD
There are many other good ones out there, but for a balence of price/performance/dependability/weight/EYE RELIEF they are tops. I prefer fixed powers of lower power, but that is a personal thing, you'll need to...
No doubt someone actually employed by Nosler will respond to your question, but I believe the most important difference is that the partition is farther to the front of the PT Gold which will give a bit better penetration than the standard Partition. There is also a steel thimble in the rear...
Interesting, did you move it to the front or the rear? To the rear I suspect since the CT PT Gold's was moved forward IIRC. I plan on playing with both weights and making a decision after seeing what accuracy and real-world velocity for both turns out to be. Most likely I'd be about as well...
In your number four manual Rick Jamison indicates the 1900 fps should be the minimum striking velocity for Partitions, is that an accurate across the board figure? Specifically I will be loading for a 7x57 in a Ruger No 1 and want to use either 160 gr or 175 gr Partions. From your manual and...
Hmmmm, .308 Winchester in Savage 110FP does 1" or a bit less depending on me with 180gr Partition Protected Points and Varget, I have some 165's I'll try soon. Years ago I had a Remington Mohawk 600 that did 3/4" with 165gr PPP's, sadly these were discontinued and then it did about an inch with...