Rate of twist????

S

savagelover

New member
I don't know if this is the place to post or not..Kind of hard to figure out the forum setup...Anyway,I have a savage 22 250 rifle and wonder what is the best method for find out the rate of twist so I can pick a good bullet for it..Is it the fast the longer bullet or the opposite..?
 
Generally, the faster the twist, the longer the bullet it will stabilize.

The best way to determine your barrel twist is to measure it yourself. If you've got a good cleaning rod and a tight patch, it's easy to mark the rod, pull it through the barrel until it makes one turn, then measure the distance. Then you'll know for sure what your barrel twist is.
 
A good number of Savages chambered in .22-250Rem have 1:12 rate. You can find out by doing what PawPaw stated or as Art suggested and go to Savage's site.

My Model 12 heavy barrel is chambered the same as yours and it's 1:12. I found the majority of recipes keep me choosing Sierra MatchKing 52gr HPBT.
 
twist rate

I've got a Speer Manual that states Savage 110 twist rate for 22-250 was/is 1:14. This is an older manual, and there would have been no "short action" Savages at that time.

As others have posted differently, it appears factory twist rate may vary.
You don't mention what model or vintage your Savage might be.

How about measuring it yourself? Fit a tight patch in the bore, run the patch back to the chamber, but not so far that the patch clears the rifling. Mark the rod at the muzzle, say 12'o'clock, even with the front sight. Pull the rod through again towards the muzzle. You will see the rod rotate as the patch catches the rifling. When the reference mark comes 12 0'clock again measure the distance.
 
The longer the bullet, the faster the twist rate needed for stability.

Generally, 1:10 and slower does just fine with bullets of 55 grains or less. 1:10 might not group as tightly with the 40-grain bullets, but I don't know.

1:14 would be thinking back to the old days when the common "varmint" load for the .22-250 and the Swift was a 40-grain bullet. 1:12 would be fine with those, probably, and of course with 50- to 55-grain bullets.

I have found that 1:10 is okay with blunt-nosed 70-grain flat-based bullets, but most folks go to 1:9 and 1:7 for the heavier bullets above 55 grains.
 
thanks for all your replies.I figured if I ask on here some of you
would be able to explain it to me..Thanks again..John:cool::cool:
 
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