New one bullets cutting perfect sideways profiles at 25 yards

[AZShooter]

I would have asked for a 1 in 8. No idea why 1 in 9. If he sticks with the shorter hunting bullets and doesn't try the longer LR accubonds or bergers I guess he will be fine.

Earlier I said: "Lazzeroni uses a 10 twist on his 6.5 Scramjet." I made an error thinking it was a 6.5 cal the Scramjet is a 257.

Lazzeroni does use a 1 in 10 twist with his Phantom, the short mag case. He only uses these bullets: Nosler Ballistic Tip 100GR, Nosler Ballistic Tip 120Gr and Nosler Partition 140GR.


If I knew the length of the 129 LR accubond could crunch the stability factor for it with a 1 in 9.
The rifle will be used at elevations of 3000 ft or better so that might help too.

 

[Thebear_78]

Talk some sense into your buddy. The 26 nosler would really shine with the longer bullets, that LRAB 142 would be really good and 1-8 is the way to go with any of those longer bullets. If I was him I would demand a 1-8 twist!

 

[AZShooter]

Just talked to him. His ballistician, a friend of Bryan Litz's says the 28" barrel will be fine with a 1 in 9. He has plenty of rifles and don't think he wants to shoot the heavier projectiles with this rifle.

 

[elkaholic]

Talk some sense into your buddy. The 26 nosler would really shine with the longer bullets, that LRAB 142 would be really good and 1-8 is the way to go with any of those longer bullets. If I was him I would demand a 1-8 twist!

I agree with the 8 twist for sure! Even if he does not shoot heavier than 140's, the 8 twist won't hurt and if he ever does want to shoot heavier (actually longer) the 8 is the way to go......Rich

 

[jrsolocam]

A smith that thinks 1:12 for 6.5 anything needs to be smacked in the head. I can't see spec'ing a build and not having a clue as to what to twist the barrel.

Absolutely, end of story.