I've had two 25-06s, one was a Mark X and the other is Remington. Sendero. With both rifles a case full of IMR or H 4831 with a 100 grain flat base bullet, usually Speer gave sterling accuracy. I never tried anything of a lower weight, the boat tails of any bullet weight did not match the accuracy of the Speer. I have long hoped for a 115, a117 or a 120 grain for long range [400 to 600 yards]. I've thought about rebarreling to a different twist rate to se i that improved the accuracy with the heavier bullet weights.
I've wondered if the boat tail bullets might be the problem. The flat baseSpeer always out shoots the various boat tails.
Last edited by arkypete; 07/14/21.
