Twist rate dictates the bullets that you should be looking into
Twist rate dictates the bullets that you should be looking into
The Dunning-Kruger effect is alive and well.
Is there some rule that tells you what weight is best for a twist rate and caliber?Originally Posted by Robinhood
Yes, however, if you plan on shooting the barrel you have, it is my humble opinion that is the one that will dictate your bullet purchase. I have a 7 twist I shoot 80 grains and higher. That doesn't help you. What twist do you have?
Bullet length not weight is what determines the twist rate needed. You may hear this weight bullet shoots better but what is being said is the length of this bullet works well in this twist. It has to do with the spin creating stability.
The Dunning-Kruger effect is alive and well.
1 in 9. I see Savage does recommend the 69 grain for a 1 in 9 twist but 1 in 7 they recommend that and heavier. I noticed the 22-250 they recommend a 40 grain bullet for both a 1 in 12 and 1 in 9 twist. Interesting there would be that much variation in recommendations between 22 calibers.
"Bullet length not weight is what determines the twist rate needed. You may hear this weight bullet shoots better but what is being said is the length of this bullet works well in this twist. It has to do with the spin creating stability"
I believe that. The Hornady 68 grain shot horribly in both the Axis and Remington. I forget the exact measurement but it is definitely longer than the Sierra. Both the Axis and Remington shoot the 77 grain Sierra ever so slightly better than the 69 grain Sierra and a 77 grain is not supposed to work with the 1 in 9 twist. There is not enough difference between the two I would even make the statement, more likely believing it was operator error on my part but Charlie B said the 77 shoots the best for him too so I think it does work just a slight bit better.
What is your powder, charge weight and max deviation in weight with the 77?
The Dunning-Kruger effect is alive and well.
22.8 of Benchmark. You mean how much difference in powder weight? I get it as close as I can on a beam scale, trickle it up the last tenth grain or so. Unless you mean something else like if I have used different powder charges, like 22.5, 22.8, 23 to see what worked best. I have only used the 22.8 charge so far.
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