Originally Posted by Popapi
Wow ONLY 640 rounds, and this was a bench rest rifle correct?
'Twasn't a benchrest rifle. 'Twas a prone rifle for long range highpower matches. An squared up Win. 70 action epoxy bedded in a wood stock with a Douglas 1:9 twist, 28 inch barrel, standard SAAMI chamber shooting new Winchester cases with 70-some grains of H870 ignited by Rem. 9.5 primers pushing out a Norma 139-gr. match bullet. Tested some 20-shot groups at 600 and worst one was 3.1 inch. At 1000, it held about 7.5 inches for 20 shots.
It was shooting within 1/4 MOA of call for the first dozen or so shots in the match and had not dropped a point; all were in the 10 and X rings. Then it started opening up; each successive shot was worse. Last 3 of 20 record shots went into almost 3 MOA.