Thread: clarification 7mmRm + ar2217 + hornady eldx 150g

Hey guys,

I have just made up several different loads forn my 7mm, and my 300 win mag.

I loaded up my 7mmRm first, as per the min and max powder amounts and loaded up 5 rounds of each going up .5g each lot of 5 rounds, after I made up 10x lots of 5 I went onto the 300winmag, 168g + 2217 again, although after loading the first few, I realised the casing was 85 -90% full before seating the projectile. After a quick bit of research, I realised that compressing the powder was normal but it made me think about the 7mmRm, and I knew the cashing were only 50% full, which meant no powder compression once seated.

So, I picked up a loaded round and shook it, I could hear the powder shaking around.... this is worrying me as I have made up 50 various rounds. Is this a problem? I stuck to the load data published by hornady, for the 150g eldx and the h1000 powder ( h1000 powder is equivalent to the ar2217 ).

Have I stuffed somthing up?

These are my first hand loads.....

Also is .5g a good amount to go up in weights by when developing a ladder load test? I also went to the maximum size - .20mm that the mag would allow for col.