How many long range shooters or bench rest shooters do we have on TA? How many long range varmint hunters or big game hunters? I ask because I see all kinds of advice on what powder and what bullets are the most accurate but I don't see how they arrived at that conclusion. Developing an accurate load takes dedication and a lot of testing the different variables. Example: Rifle-Rem Varmint Special in 22-250, Cases-Remington, Primer-CCI LR Match, Powder-IMR 4064 and bullet Hornady 52gn BTHP match. This is one of my most accurate loads in this rifle but in my buddys Savage 110 heavy barrel it only gives mediocre groups. Now we changed the primer to a Win LR match and used the Hornady 53gn flat base hp and his rifle shoots cloverleafs at 100 yds. While developing the load for my rifle I loaded 5 rounds of each using 5 different primers in the aforementioned load. Everything was the same except the primers. Testing these loads really opened my eyes to how much variation there is in just the primer. I admit there was not a lot of difference at 100 yds but when we stretched the range to 300 yds the difference was very notable. What I am saying is if you want to find the most accurate loads for a particular firearm then be prepared to shoot and test a lot. Every change in the combination of components of a cartridge affects consistency/accuracy even how deep & straight the bullet is seated, the crimp, and how the case is size affect accuracy. Patience is a virtue when loading for accuracy and if you really want a challenge then try loading your own cast bullets.