The M4 has been 1-7 from the beginning even the M16 went to 1-7. It's been 1-7 since the 1990's at least. My 1-8 will shoot some 55gr good but not all. It likes 75gr bullets the best. The only 62gr bullet it shoots accurate is Wolf Military Classic 62gr HP that I have found so far. It doesn't like M193 or M855. At least the federal version. 1-12 will shoot 55gr and down to 35gr. My buddy has a varmint rifle with that twist and he uses 35gr and 40gr a lot for that high velocity.1/12 is 55 grain, OR the US military was wrong for over 30 years
I've actually found it to be pretty much spot on with my rifles.I think the guide is too generic. I say try ABC in your XYZ and see what happens.
Fair enough. I haven't tested anything 55gr past 100 yards. Might have to put that on my "to do" list.I think it worth noting that you could get decent results at 100 yards with a bullet that isn't properly stabilized that might not be indicative of what would happen at 300 or 500 yards. The bullet is losing energy throughout its flight.
FWIW, I don't think the issue would be shooting light bullets in faster twist barrels, but rather the other way around. I could be wrong, but I think the chart is showing the minimum twist necessary to stabilize the particular weight.Fair enough. I haven't tested anything 55gr past 100 yards. Might have to put that on my "to do" list.
I just added it to my list of stuff to "test and tune". I'll test Wolf Gold 55gr at 200 and 300 yards with the Noveske and BCM.FWIW, I don't think the issue would be shooting light bullets in faster twist barrels, but rather the other way around. I could be wrong, but I think the chart is showing the minimum twist necessary to stabilize the particular weight.
In any case, I do think you are correct that it would be worth adding to your to do list. I hope we see the results some day.
Edit: reading the article above, I think the chart might be geared towards best accuracy rather than minimum necessary.
1/12 is 55 grain, OR the US military was wrong for over 30 years
Any experience with this?Buds Mini 14 ranch ( earliest model ) would rip apart Hornady 55gr SX. Dunno what twist rate was. Said bore wasnt the most smooth.
Got a .219 D Wasp and dunno what the twist on it is. 50gr Nosler BT do sub half inch at 100. Supposedly nips at 22-250 heels....I dont have a chrono.
Not interested either. Its hot enough and accuracy is there. No need to try to squeeze out more of either.
Do think 55s in an AR about perfect yote machine. Tried across 3 different ones.....the V max or Winchester Supreme stuff both shot well.
Exits kinda large but can be sewed up LOL