? about 68gr Hornady and savage .22-250?

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cath8r

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Don't know if this is the right place to ask. Wondering if this bullet would work out of a Savage 1-12" .22-250 Rem. ?
It would be for a varminting rig. What would be the heaviest bullet to shoot from this rifle accurately?
Thanks, Rob.
 
Highly doubt it. Being a boat tail, it probably requires a 1in10. The 64gr Berger Varmint bullet will work.
 
"...What would be the heaviest bullet..." Usually a 55 grain bullet. Doesn't matter if it's a BT or not. The 1 in 12 rifling won't stabilize bullets well. There are hordes of good 55 grain and lighter bullets available.
 
Reason I'm asking is a buddy wants something with more meat to thump critters with. My 1-14" 22-250's always shot 55's well, thinking the little quicker twist might do the 68's well. Thanks guys.
I'm gonna tell him to use the 55gr V-max, although they do make a 60 gr. Maybe that would satisfy his need to be different?
 
"...buddy wants something with..." What bullet is he using now? If he's looking for more, um, spectactular results, a change of bullet construction will do it. SP SX's tend to give that kind of result.
 
sunray said:
"...What would be the heaviest bullet..." Usually a 55 grain bullet. Doesn't matter if it's a BT or not. The 1 in 12 rifling won't stabilize bullets well. There are hordes of good 55 grain and lighter bullets available.
Click to expand...

Yes it does matter. A boat tail bullet of the same weight is longer than a flat based bullet and thus requires more twist. Weight is NOT the determining factor for twist rate, length is.
 
Using the JBM's Stability calculate (based on the Miller formula), with inputs of mv=3400fps, bullet weight=68 grains, bullet length=0.987", temp=59F, press=29.92"Hg, twist=1:12", indicates a stability factor of 0.75. This is substantially below the 1.00 that indicates stability, so this combination is not even close to working.

PEIRob is correct, the shape of the bullet does matter. It's a smaller factor than the bullet length, and most formulas ignore the bullet shape (Greenhill ignores it, Miller ignores it).

Cath8r Rob, play around with the JBM calculator, and try out different combos of bullet weight, speed and bullet length that are of interest to you. A calculated stability factor of 1.2 or more is pretty much assured to work. Anything greater than 1.0 _might_ work, but you'd have to test it to be sure.
 
Thanks guys. He's running 45gr and they are really accurate out of his gun. He's afraid to switch unless its something alot heavier. Looking at the Hornady website and seeing a 68 grainer got him to thinking. Alot of times when its season to break out the '250 down here, the winds are howling and the varmints are out there. Reckoning a 68 grainer pushed as fast as it will go would be a number.
Anyone have experience with the 60 gr V-max?
 
I used the Sierra 60 hollow point (flat base) and the Sierra 63 gr semi spitzer. They both carry more energy down range than the 55. The 45 is too light in a 22-250. That is a Hornet bullet, unless you guys shoot at close range.

I was shooting grond hogs at 400 yards, so wanted the heaviest bullet I could group with.
 
Find out the length of the bullets you are interested in, then apply a formula (Greenhill, or Miller), to let you know if you have a chance of it working - if you do, give it a try.

Or, apply a formula to your parameters, and find out the longest bullet that is feasible for you to try. I would suggest you use the JBM stability (Miller) calculator I mentioned in an earlier post, and find out the longest bullets you can use and still expect to stabilize in a 1-12" twist - then you'll know which ones are worth trying.
 
I used to shoot a 60gr V-max in my savage 22-250 for a ling time. they worked wonderfully. Although now I can't find them anymore so I swapped to a 52gr berger. and wow does that work!
Just play around, see what works and doesn't. I have found that everything I put through my savage shot great. Hope you have the same luck!
 
50 gr vmax is still my favourite bullet out of a 1-14" 22-250. I suspect the 64 Berger that Rob mentioned would be the cat's a$$ in a 1-12", but I know the 60 vamax will get the job done.
 
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