Thread: 7mm Rem Mag Troubles

I'm not sure what is going on, however I load the 162gr with AR2225 up to 73gr for around 3050fps. In my opinion anything over 70gr of AR2217 is overloaded if you are getting ejector smudges or can see brass flow you are way over pressure. I hope its not a Tikka you will be hammering the bolt lugs into the action keep that up and it will be stuffed in no time. You have to stop chasing velocity and be sensible. Maybe try AR2225.

Originally Posted by Dermastor

I'm not sure what is going on, however I load the 162gr with AR2225 up to 73gr for around 3050fps. In my opinion anything over 70gr of AR2217 is overloaded if you are getting ejector smudges or can see brass flow you are way over pressure. I hope its not a Tikka you will be hammering the bolt lugs into the action keep that up and it will be stuffed in no time. You have to stop chasing velocity and be sensible. Maybe try AR2225.

Yep, fair call. To be clear, I've only put three rounds through that have had heavy bolt - I'm not doing it over and over again.

My confusion is why each time I drop down, I seem to have one load that's sweet and the next half grain up I have signs of pressure. Seems to be incrementally decreasing the threshold even though I'm dropping down each time. At this point I'm worried something is going on with the rifle, as there were zero signs of pressure with these exact loads when I started this development.
@Walker I thought that too. But Saturday was the coldest day I've done this and got pressure on the lowest load so far.

I think the plan is basically to drop right down and start again. But if this could be something to do with the rifle, rather than the loads, I'd like to know so it doesn't keep getting worse.