Well....I have been dinking around with this rifle and its red headed step child of a cartridge for a bit. Diz graciously ran some loads for me on his Quickloads.....and we're experiencing some curious results with it. As that is all black magic to me I'll leave the interpretation to Diz.
Tuesday evening I decided to try a load of 18 grs. of IMR-4227, a powder heretofore untried. Same Accurate Molds bullet at .347 and 175 grs. cast of 50/50, lead/lino, Lee Alox lube, Rem. 9 1/2 primers in WW formed cases. I also tried an increased load of 21 grs. of RE-7 wondering if the 1/2 gr. increase might improve the group from 20.5. Nope, didn't happen. If anything it was a little worse. Then to the IMR-4227 load. First shot from a cold barrel was out of the group, which is pretty much expected, then the next 4 went into 0.344 as best I could measure with the calipers.
Being a cheapskate I'll use the same target for a couple loads and mark them with a Sharpie. The RE-7 loads are marked with a "7" are the top three in the 7 ring, then the one in the 9 ring at about 11:30 and the one closest to the center in the 10 ring. There was a "7" above it until it was obliterated. The first shot with the IMR-4227 load is on the line between the 8 & 9 rings. The next 4 are clustered near the top of the 10 ring.
The shooting was done at only 50 yards, benched and bagged as I am still collecting data at short range. Next step is to cast some more bullets and stretch the legs of the load and rifle and see if the results remain similar. Not too shabby for a 90+ year old rifle and a 60+ year old, fat, whited headed ol' varmint.....
Tuesday evening I decided to try a load of 18 grs. of IMR-4227, a powder heretofore untried. Same Accurate Molds bullet at .347 and 175 grs. cast of 50/50, lead/lino, Lee Alox lube, Rem. 9 1/2 primers in WW formed cases. I also tried an increased load of 21 grs. of RE-7 wondering if the 1/2 gr. increase might improve the group from 20.5. Nope, didn't happen. If anything it was a little worse. Then to the IMR-4227 load. First shot from a cold barrel was out of the group, which is pretty much expected, then the next 4 went into 0.344 as best I could measure with the calipers.
Being a cheapskate I'll use the same target for a couple loads and mark them with a Sharpie. The RE-7 loads are marked with a "7" are the top three in the 7 ring, then the one in the 9 ring at about 11:30 and the one closest to the center in the 10 ring. There was a "7" above it until it was obliterated. The first shot with the IMR-4227 load is on the line between the 8 & 9 rings. The next 4 are clustered near the top of the 10 ring.
The shooting was done at only 50 yards, benched and bagged as I am still collecting data at short range. Next step is to cast some more bullets and stretch the legs of the load and rifle and see if the results remain similar. Not too shabby for a 90+ year old rifle and a 60+ year old, fat, whited headed ol' varmint.....
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