I have used mainly LC brass and Rem 71/2 primers but have varied using IMI brass and CCI 450 and the CCI BR's too.
I pulled out my 20 Tac data book and it has 41 pages of loads I have tried going back 10 years so saying one is a pet load might be difficult.
I use mine for predators so my bullet choices may not match what you want for say PD's.
I found best results with 35gr Bergers for overall performance. Powders I have used with this bullet are XTerminator/Reloder10X/N-130/H4198/H322/IMR3031/AA2520/N530/CFE223/IMR8208/TAC/Benchmark/N135/
I have used several bullets along the line as well but kept coming back to the Berger.
AA2520 and N530 were quite good giving top velocities and shot great. The one I gave up on quick was Reloder 10X as its the dirtiest hard to clean stuff I have ever used.
If you just want accuracy and don't like to experiment I would suggest H322 as several friends have used that with good luck.
My last loads were trying the 39gr TNT Speer bullet with N202 powder and still need to shoot some critters with this bullet to see how they perform.
Edited by DStroud (07/28/16 09:06 PM)
"Anyone taking up handloading necessarily plays with unknown factors and takes chances. But so does anyone who drives a car,goes to a cocktail party,eats in a restaurant,or gets married."
Jack O'Connor 1963