I often wondered about how accurate the Burger bullets really were so I went and purchased 2 boxes of the 175 gr VLD (Hunting) bullets which were supposedly designed for my Tikka 30-06 with its 1:10 twist.
When I got to the range I sent 3 rounds of my Sierra Game King 180 gr bullets down range to foul the barrel and to verify zero.
I let the barrel cool while I went to check the target. My first shot was about 1" right and 1" high (I presume that is because I forgot to swab the oil out of the bore before I left..
) But the next 2 were touching 1/2" high and 1/2" left of the 1" bull.
I set a new "shoot-n-see" target up and headed back to the bench.
The first Berger hit in the same spot. 1/2" high and 1/2" left. The second, after a minute wait basically went in the same hole. And after another minute and the third just enlarged the hole. I thought I'd make it a 5 shot group so I fired the next 2 off. I should have waited a bit because the barrel was heating up and in the 90* + temps didn't cool off much. The 4th and 5th hit on either side of the ragged hole leaving a sliver of paper between them and the tiny cluster. Still the group measured in at slightly over 3/4". I was really satisfied with the load which was 49 gr of IMR4064 and CCI200 primer. I'm glad of that because that is the same charge I use for my Sierras.
I had a load of 54 gr of IMR4350 also made up and tried them but the groups were a bit larger than those of the 4064 load.