if you read my qualifier before,i said that this wouldn't be prudent in oversize cases of large case capacitys.if you look in reloading manuals you will not see imr7828 listed for 7mm-08 for example. why, because it does not burn fast enough to create any kind of velocity.i shoot compressed loads of imr4350 in a 7mm-08 which are quite accurrate in my model7 rem with no signs of pressure.when i fireformed the factory brass to this chamber i ended up with a backed off powder charge of 3 grains below max and seated the bullets out to touch the lands.i've fireformed over 100 cases this way in this rifle without any problems.i started out with 10% less powder than max and worked up from there.again using a slow enuogh powder for the application is key.i'll repeat,using a slow enough powder for the application is key.