Quote:
Originally Posted by Marksman
Being fortunate to own a Pre-war Winchester M/70 .257 Roberts, I would like to deer hunt with it this coming season. I'm looking for a good load for Whitetail deer, shots will be 100-200 yds.. I have been shooting Federal Light Magnum for a foctory load and the rifle groups them well. Looking for a handload using 115-120 gr. bullets and IMR powder. I have several pounds of IMR-4064 that I use in my .35 Whelen, if I could utilize that in the .257 that would keep my powder inventory from getting too extensive.
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I loaded 36 grains 4064 under 117 grain sierra gameking bt traveling at approx 2600 fps and grouping 3 shots under 3 inches at 300yds. the rifle is a Browning a-bolt medalion .257 roberts with a 4 to 16 x 50 nikon monarch scope.
I also recrowned the barrel using a brass round head screw in an electric drill with lapping compound as per midway you-tube instructions. and the gun shoots minute of angle with what ever I put in it.