Post by elkman1310 on May 31, 2018 19:09:17 GMT -5
The other day I had planned on shooting my 6.5/284 at 1k with the new 147gr ELD-M bullet with the same load of RL 16 I shoot earlier when the temp was 70deg. I had no problems then but when I shot at the range it was 84deg and now the same load nearly locked the gun up. They say RL 16 is supposed to be extremely stable in all temps I don't agree with that anymore.
So I new if wanted to shoot these bullets and the 150gr SMK in a 1-7 twist barrel I had to change powders. I loaded a string of RL 23 and RL 26 to see how these powders behaved with the heavier bullets. Both the Hornady and the Sierra have a long bearing surface so that can jack the pressure up. At any rate with both RL 23 and RL 26 I could easily get 3000 fps with a good safety margin on the powder charge. When I get the barrel and chamber it I still plan on trying RL 16 and then go to RL 23 I really don't like RL 26 it is a speed powder but it has never produced good accuracy at 1k. RL16 and RL 23 are two powders that shooters are doing well with in a 1K matches.
I got the new 150gr SMK bullets today. They check out pretty good they are long and pointed. I test all my bullets on a Verne Junkie bullet comparator and it does show the differences in the jacket concentricity both the Hornady and Sierra check out good for a production bullet some spin almost perfect the worse are out 4 deviations they claim 5 dev. and under is really good. I don't like to see the needle swing back and forth the less the needle moves the smaller they will group at 1K. At 100 yards you would not see the difference.
