Hi Tahr,
Got some 69 grn HPBT targex to try in my Howa action.
I have BM2 and 2208 powder. No adverse to getting some 2206H either though.
What do you think?
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Don’t now about ideal load but two that work for me are: 25.5gr ar2206h under Hornady 55gr SP, or 24gr 2219 under Hornady 55gr SP.
To be fair Speer 55 or Remington Corelok 55 with either powder work pretty well in my two rifles ( goats,pigs,deer ).
I use 2206H with them but there is nothing wrong with 2208 either. I haven't used BM2 with them. With 2208 or 2206H you should get 2.9k easily enough with a 20" barrel. Work up carefully and you will be ok. If you have a chrono use that to track pressure. High speed compared to the manuals means high pressure regardless of what your primer or case looks like.
Yeah, I dont have a chrono unfortunately. I will have to borrow one I think. The rifle isnt up and running yet as I havent had time to mount the scope yet.
Working on it though!!