While I don�t have a dog in the Keith/O�Connor fight, I thought I would share a few quotes from the end of a letter that Jack wrote back to my Father, in response to several questions he asked about the advantages of a .300 Mag vs the .30-06 and bullet weight choices (172gr vs 180gr) for them when hunting Elk. <br> <br>The letter is dated February 2, 1952, signed by Jack and typed on Outdoor Life letterhead, from the "Arms and Ammunition department". <br> <br>(begin quote) <br>. <br>. <br>I doubt if one in 20 can stand the recoil of a .300 Magnum. Believe me, the placement of the shot is so much more important than the bullet with which the animal is hit that there is no comparison. I speak from a hunting experience that extends almost 40 years and from Central Mexico to Alaska. On a trip once I killed nine head of big game including a moose and a grizzly and I fired exactly 11 shots from a poor little, broken-down .270 with the 130-gr. bullet. <br> <br>Darned if I know which would hold together best, the 172gr. Western Tool & Copper cavity point or the 180gr. Silvertip for the .30/06 but I am inclined to believe that the Western Tool & Cooper Works bullet would do it. <br> <br>I have recently been chronographing some loads for the standard .300 Magnum. I believe the best one I have found is 71grs. of this powder known as "No. 4350 data Powder" and which is actually No. 4831. With the 180-gr. bullet 71grs. of No. 4831 gives a velocity of about 3125. <br> <br>My best wishes, <br>Jack O�Connor <br> <br>(end quote) <br> <br>Looks like the advocator of small/light, was secretly into testing Big-n-Fast also !! <br> <br>...... Silver Bullet <br> <br>By the way, QuickLoad predicts 3,107 fps with 71grs of IMR-4350 (at max pressures), pushing a 180 gr Winchester Silvertip in a 26" barrelled .300 Win mag. Not bad for 50+ years ago ..... <br> <br>
