Will a 22-250 1-14 twist stabalize a 60 grain ?

[OpossumMcMuffin]

That's the whole question. If anybody is shooting a 60 grain in a 22-250 1-14twist or has tried it with keyhole results please let me know.

 

[BoydAllen]

A long time ago, I had a Ruger 77 varmint in 22-250 that had a long throat. I wanted to be able to engage the rifling,when chambering loaded rounds), so I got a box of 65 gr Bergers,FBHP). They shot fine,on paper and at California ground squirrels) with about a grain and a half over the manual maximum of H414. I believe that the barrel had a 14" twist

 

[trappst]

My 1:14 twist 223 AI shoots the Sierra 60g HP very well while fireforming brass. Velocity is only 3100ish so you should have no problems at 22-250 speeds.

I don't have any experience with other 60g bullets.

 

[357Mag]

Possum -

Yes... you CAN stabilize 60s from a 1-14 .22-250, however...
this is when shooting more conventional 60s, like the Hornady 60HP.

You WILL NOT be able to stablize the long " custom " 60s...
those that are over .75" long.

A 1-12 woudl likely be able to handle both the custom 60s,
and the newish Sierra 65SP better.

Go with powders such as I4350 for the 60s, and perhaps also
H414; VV160. Use mag primers, such as Fed LR Magnum Match.

Best of luck in your endeavors.

Regards,
357Mag

 

[OpossumMcMuffin]

Thanks guys, I appreciate your help.

 

[ghermitage]

That's the whole question. If anybody is shooting a 60 grain in a 22-250 1-14twist or has tried it with keyhole results please let me know.

Mine doesn't stabilize Nosler Partition 60s.

 

[artbosco]

This information is from the Shilen web page at: www.shilen.com

"The information below will help you select the best barrel twist for your specific needs, providing of course there are multiple choices. If you’ll be shooting one bullet weight, choose a twist from the chart just fast enough to stabilize it. Too fast a twist simply overspins the bullet and may result in reduced accuracy. On the other hand, a twist too slow for any bullet will likely produce instability, keyholing and rotten accuracy. So if you’re going to be using several bullet weights, be sure to select a twist that will stabilize the heaviest one, since lighter bullets will also be stabilized.

By way of explanation, the numbers in the "Twist" column indicate how far the bullet must travel through the bore to make one full revolution. This is determined by the rate of rotation of the rifling. For example, a 9"-twist barrel spins the bullet one full turn when it passes 9 inches through the bore. In a 16"-twist barrel, the bullet makes one revolution in 16 inches. So at the same bullet velocity, the 9" twist is faster,spins the bullet faster) than the 16" twist. Consequently, as the chart reflects in the .224 CF section, the 9" twist is necessary for stabilizing heavier bullet weights.

Again looking at the .224 CF section, if you’re planning to shoot 55-grain bullets, the 14" twist is ideal. This twist is also the best choice for 52- and 53-grain match bullets driven at moderate velocities. But if you’re also contemplating shooting a 60-grainer, go with the 12" twist, since it will stabilize all the bullets you’ll be using. As you can see from the 15" and 16" twists, higher velocities also spin the bullet faster and may enable a slower-than-recommended twist to stabilize a marginally overweight bullet. However, this is tricky stuff best left to those who are highly experienced in operating at the ragged edge of stability and sanity.

The basic principles just outlined apply to all the calibers below. But, if you have questions or need a recommendation, let us know.

.224 CF Caliber Twist

8" For bullets heavier than 70 gr.

9" For bullets up to 70 gr.

12" For bullets up to 63 gr.

14" For bullets up to 55 gr.

15"* For bullets up to 55 gr. driven 4,100 fps or more

16"* For bullets up to 55 gr. driven 4,300 fps or more"