![]() My tests with the 6mm Creedmoor told a different story. ![]() 30-06 ammo with Federal standard 210 primers. From here on out, I’m going to be loading my. 30-06, I had to conclude that aside from avoiding primers the rifle doesn’t like-in this case the Winchester Large Rifle-the rifle drew no advantage from using match-grade primers. Velocities measured with a Labradar chronograph.Īdding up the velocity data, group sizes and observed anomalies with the. ![]() The 6mm Creedmoor was fired from a Ckye bipod and rear sandbag. 30-06 was fired from a Harris bipod and rear sandbag. You can see the complete data on the accompanying chart. This proved true with the 6mm Creedmoor as well. I did observe that Federal’s primers-both grades-produced significantly smaller velocity extreme spread and standard deviation. The second is my favorite PRS rifle, a GA Precision in 6mm Creedmoor with a Bartlein barrel. It was customized years ago by Hill Country Rifles and has a Lilja barrel. The first was my old go-to Winchester Model 70 in. They’re only a few bucks more per 1,000, and the peace of mind I get by knowing I’m leaving no stone unturned in my search for precision makes the cost worth it.īut do match-grade primers really make a difference? To find out, I recently performed a comparison test with two different rifles. ![]() I’ve always been the type to walk the extra mile for anything that might have an effect on performance, and I’ve always purchased match-grade primers. He bought a 100 pack of Federal Gold Medal caps, and the next week he came back brimming with enthusiasm: “Changing primers turned my rifle from a two-inch gun to a three-quarter-inch gun,” he said. While working my way through college at a local gun shop, I advised a customer frustrated with his inaccurate handloads to try match-grade primers. ![]()
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