At 600 yards:
* Phase one was several 10-shot groups all under 1.5 inches, smallest about .7 inch.
* Phase two was one 40-shot group at 1.925".
Pre '64 Win 70 action trued up bolt and receiver faces bedded in a P.J. Wright walnut stock, Hart 1:11 twist 26" barrel with WCC58 match cases full length sized with 42 grains of IMR4064 under Lapua D46 185-gr. match bullets; rifle clamped in free recoiling machine rest.
Mid Tompkins, early 1971. A fall issue of the American Rifleman magazine that year pictured one 10-shot group about .8 inch in a Lapua Bullet advertisement.