I got some of the Sierra 300 HPBT and retumbo powder and did some testing at 300 meters and I was not very pleased. Shot about 25 rounds in groups of 5 for each load from 83gr to 87gr (as per Lyman reloading manual) and I am not happy with the 5" group
Any one who is shooting the above firearm would like to share their reloading data please?
Thanks
Any one who is shooting the above firearm would like to share their reloading data please?
Thanks