Thread: IMR 8133 in 7m rem mag

Recently dived into that big rabbit hole and started reloading for my t3 7m rem mag.
A good bugger from the local manawatu nzda has helped me get started with some good advise and got me onto IMR 8133 as a suitable powder .
For primers i got some cci 200 which were only ones available.
For projectiles i initially got some 150gr eldx, again all i could get at the time and worked up to a load of 76gr (book max is 77gr) but haven't chronyied them or tried them on an animal yet, and more recently got some 175gr sierra gamekings , again not my first choice but getting closer, and from what i've read about them will work ok down to about 2200fps which is about 400 odd yds depending on mv, so i am ok with that as my last 4 deer shot have been under 20yds LOL.
I have found a load of 71.5 gr with these 175gr pills that groups ok , i did go up to 73gr but noticed a slight resistance when opening the bolt at that charge.
I hope to put this load over a chrony soon and shoot some gongs out to 500yds.
Anyone else have experience with IMR 8133 that you can share. cheers