I'm 90% sure that you would need a 12 twist to handle a 60 gr vmax. I'm 100% sure that a 14 twist will not stablize the 60 grain boat tail. When I have a question about the twist of a bullet I usually start by looking at Berger's website and compareing similar bullets to them since Berger lists the required twist for all their bullets.
Remember that the LONGER the bullet is overall, the slower the twist it will require. A Vmax is a spitzer and a Balistic tip is a boat tail = longer.
Simple rule of thumb is a 50/52 gr boat tail and a 55 gr spitzer is the most BC you can usually get out of a 14" twist and up that by 5 grains or so when you go to a savage and 12" twist.
I used to re-load but now I "hand-load".
-- Well, at least I try --
I have shot that bullet in several factory 22-250s with mixed results. One Rem 700 simply shot patterns.
Most of them would get groups in the 1 to 1.5 moa range at 100 yards.
I have only seen one rifle that shot them well, under 3/4 moa at 100 yards. That said, those same rifles had problems with some of the tipped 55 gr Boat tail bullets as well.
For factory barrels, I generally always use the 50 gr tipped boattail bullets or a HP in 52 or 55 grain. That said, a 60 gr HP will generally stabilize fully in the factory barrel with the larger 22 cal rifles.
Allen Precision Shooting
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I shoot a remington 788 in 22-250 with a 1:14 twist and it does super with a 55 grain remington soft point. Anything heavier and it starts falling apart.
The 50 grain v-max shot well but going over 55 grain bullets have not worked well in my rifle.
The two 1-14" Remingtons that I had, a BDL Varmint Special and a VS (Varmint Synthetic), I never got the gilt edge accuracy from the 55gn bullets. Groups hovered right around an inch, maybe a little better, but they absolutely shined with the 52gn SMK and 40gn NBT's. JohnnyK.
Some 22-250's will shoot some 55gr bullets. I have one that will shoot the 55gr Nosler Ballistic Tip very well. It will put 5 shots in a little over 3/8 of an inch.
I have tried both the 55gr Hornady Vmax & Sierra Blitzking out of this rifle & they did not shoot as well as the Nosler.
I have not tried a 60gr bullet yet, but I suspect that it will not shoot very good due to the 14" twist.
A 10" or 12" twist would be much better for this weight projectile.