To be honest my load was an accident. I purchased a new Savage LRP in 6.5. I didn't have brass and couldn't find any so I converted some 22-250 brass. Then I couldn't find powder. Nobody has H4350 around here. And I wanted to shoot my new rifle. What's a person to do. Well this person checked all my manuals versus what powder I had on hand. Best match I could find was AA2700. Quick check on a search engine found nothing about this combo. Since I wasn't working up a load, I just calculated that 42 grains was safe enough. Wouldn't fit in the converted 22-250's. They needed their sides expanded. That was easy, load up about 8 grains of No 5 and some filler, toilet paper to hold everything inside. Make sure the wife's not home, and fire into a pile of old t-shirts in the basement. Finally 10 empties of 22-250. Why 10, it was all the 6.5 bullets that I had.
Loaded up all ten with 42 grains. Used 140 grain bullets that I had sitting around for my Swede. They were Sierra's. About that time the scope came in. Same Vortex Viper I have on the Milspec. I bore sighted it. When Saturday came about I went to my dad's where we have a hundred yard range. A couple sight in rounds and I was cooking. I was answered with a nice tight dime sized group. I was smiling ear to ear. Not only did I purchase a Rifle that was suggested by someone here that was accurate right out the box, I had also backed into (the accidentally) a load for the rifle.
Got back from shooting and went to the local store. The only 6.5 bullets they had were Barnes 140gr Match Burners. They had five boxes of 100. So I got them all. I then found 100 rounds of real brass and not the converted type. Loaded up another 20 with the new bullets, same result. Sometimes things in life come hard and sometimes easy. Yes I could experiment and do proper load development, but why bother when I can get dime groups at 100 and acceptable at 300. I don't have a local range where I can do farther. I can hunt farther, but who takes their LRP on a hunting trip.
Honest story.