Thanks for the info.

Also, as for the 748, I think the problem could be related to the primers. In the manuals, it states they used magnum primers with WIN 748. I use standard primers in all of my loads. I use CCI 200, 300, and 400 primers. I think that actually may be what is causing the hang fires, not necissarily bad primers, but an improperly matched primer for the powder/load. I use standard primers in my .223 with 748 and have no problems, but that is 27 grains vs. 45 grains or so in the 06 and 8mm. I think that is just too much 748 powder for the standard primer to ignite. I also do know that many of the Winchester powders (231 and 748 in my experience) produce much lower velocities in colder weather than in warm weather, to the tune of almost 150 fps from January toJuly in my .223. For that reason also, I am going to start working with a powder in my .223 that is a little more stable in temperature extremes than is 748 or 231(for my 45). I know that every powder will have some variations, but I am wanting powders that has less extreme variations. I hope I cleared that up, maybe explained it a little better to you. If you think that could still be a proble as for the hang fires let me know.

Marcial