8/30/2023 0 Comments 6.5 x47 lapua brass trim length![]() This results in the base wall getting thinner and thinner as you have seen. Then in the sizing die, it is smashed down short again and the material flows into the neck and gets trimmed off. The rifle chamber is too long so the brass is stretched every time it is fired. They will usually only fit back in the rifle chamber they were fired in though.Ĭouple guys have some good diagrams of the phenomenon. This way they fit the camber of the rifle they were fired in better and stop the excessive brass flow. Lots of info on setting up reloading dies to only set the case shoulders back about 2 thousands when FL resizing. It can leave the forward part of the case in the chamber on extraction and allow hot gas to exit the rear of the chamber. Have to be careful as they can separate in the chamber, when being fired. ![]() If you keep over sizing the brass this way, you end up with cases that look like the above. This squeezes the brass and causes the braas to flow forward toward the neck. ![]() ![]() When you FL size brass and set the die up (as per makers instructions) the brass is pretty much sized back to SAAMI specs. That's pretty common with brass that has been excessively sized. ![]()
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