.223 / 5.56 bullet weights for best twists.
PS: Could someone enlarge this so it would be easier to read.
PS: Could someone enlarge this so it would be easier to read.
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This might be good for a STICKY.
- Thread starter tickled pink
- Start date
What about the 1:12 for the SPS-V? Good info you have here for those just getting into shooting 223/5.56.
Basically I found 1:12 will shoot your 40-55 gr and nothing over that (or at least my gun won't).
Basically I found 1:12 will shoot your 40-55 gr and nothing over that (or at least my gun won't).
I have shot 60gr bullets out of a 1:12 with good results. Normally I would shoot 52/53's but I shot a hunters match and the ammo had to be legal for deer.
I posted this because it was all that was on the chart and thought it would help some guys. I guess that you will have to investigate the other twist rates not listed.
If you can measure the bullet you think you want to shoot, you can run the Greenhill formula on it and get the optimum rate of twist.
Since it is algebraic you can run the formula backwards and figure out what length will work best for your twist. Length not weight is what matters, weight is just a by-product of length.
Tickled, thanks for posting every little bit helps
Since it is algebraic you can run the formula backwards and figure out what length will work best for your twist. Length not weight is what matters, weight is just a by-product of length.
Tickled, thanks for posting every little bit helps
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