I am loading some 180 gr.triple shock bullets into my friends .300 win mag. I am using a barnes manual and Hodgdon h-1000 powder(for this load). They say to load the triple shocks the same as an x bullet, so that's what I did. Here is my problem. I was using a variety of charge weights to work up a load as we are going to the range tommorrow. When I got to the max load of 81gr.(even at 80gr.) it seemed to almost fill up the case to just below where the neck meets the shoulder. It was definately above where the shoulder meets the body. I checked the scale and it was correct. Looking at where the powder was and seeing how far the longer barnes bullet had to travel into the case it seems like an extremely compressed load. My problem with this is that I am using cci 250 magnum primers and the barnes manual used federal 210m primers. Do you think this will cause me a pressure problem? I am going to start shooting with the lower charges, but even though I checked and rechecked it just seemed like there was too much powder in the cases. Am I missing something?

don't be afraid of heavily compressed powder charges. As long as you've worked up to them they're safe.....If they wasn't safe you'd have had signs long before you got to these loads.

It sounds like you haven't shot these rounds yet. Look for signs of preasure as you go. I have always used Fed215 in my 300 Win and never tried the Fed210.

No I haven't shot them yet. I've loaded quite a few rounds in my time but never this case/powder combo. It just seemed like a lot of powder. I have a .300 RUM and a max charge of h-1000 barely(if at all) hits the shoulder. Just seemed odd to me.

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