Barnes Vortex 100gr TTSX or Double Tap ammo 100gr TTSX is what i use in my marlin XL7, i do not remember the fps of each out of my barrel but they have been sub moa each time i have shot them and have taken multiple deer
I received an email regarding the load data for the 145 LRX, barnes quickly emailed be back with updated load data for the 280. If anyone needs/wants it please let me know and i will forward the email
Did you ever pursue this load and come up with any data? I recently picked up some 145gr LRX for my 280 due to not being able to find any 140gr Nosler Ballistic tips at the moment