Local chap (now departed friend of mine) from Smithers won the 1,000yard bench rest contest shot across the frozen lake at Burns Lake one year with a #1 in .300 H&H. His group, obviously very flukey, was 1 1/2" on centres - that 'record' was made back in the 80's and will stand for many years, or until someone else shoots a fluke-group that's tighter. That particualr #1 was a good one, however and never failed to shoot sub inch at 100 yards - seems yours is too.