22-250 and Benchmark powder?

[BobLeeSwagger223]

Looks like I might be getting a really good deal on a 22-250. The barrel is a 1 in 14 so the heaviest it will probably shoot is 55's. I have over a thousand 50 v-max that I'm not using and I already use Benchmark in my 223's.

Anyone using this combo? Looks like BM won't be the velocity load which is no big deal but Hodgdons site says it'll work.

How many rounds is average for barrel life assuming you don't overheat it?

 

[fdshuster]

BobLeeSwagger223: 'rewinder' is right on the money. I burned out several 22-250 barrels,Rem factory, Hart & Shilen stainless) at an average of 2350 documented, I keep a log book on each rifle) rounds. At around 2K groups started opening up with unexplained wild shots, more copper fouling, and shortly after bullets began keyholing. All firing was single-shot and majority of loads were the traditional 38 grs. of H380 with 50 to 53 gr. bullets. The chamber/throat sections of the take-off barrels were sectioned, and yes, they were really ugly: like the inside of a sewer pipe.

 

[357Mag]

BobLee -

Howdy !


Benchmark is too fasta burn rate for practical use in a 22-250.

For use w/ bullets like 55gr, you might wanna try WW760, H414,
VV160. For 60s, IMR 4350. These will give highest load density
, higher than Varget, IMR4007 etc ), with your best chance for reduced flame temps & longer barrel life. I also used FED LR Magnum Match primers.

I shot my 22-35 wildcat, .35 Rem necked down to .224' calibre ) 1-14 24' SS Hart 5 groove to over 3,200 rounds...
before the first bullet ever keyholed. I shot WW760 almost exclusively. And then, I had the barrel cryo'd @ 2,000+ shot point, based on a recommendation from a cryo outfit ).
That was a mistake, as bore scope showed throat had chunked-out hole pieces of metal.

My point: That 1-14 barrel might have gone even farther than 3,200 rounds w/o keyholing, had I not cryo'd so late in the
barrel's life.


Best of luck in your endeavors.

Regards,
357Mag

 

[fdshuster]

357Mag: I'm not saying it does not work, just my experience. The Hart 1-14 had been cyro treated,300 below zero/Ohio), and it was toast, at close to the same number of fired rounds as the Rem. chrome moly and the Shilen stainless, both 'untreated'. I also could never see a difference in accuracy, they were all accurate), or degree of cleaning required: they were all easy to clean,'til the serious firecracking began. I now think of a barrel as an expendable item, like bullets, primers & powder, and it is what it is. Kind of nice though, when you re-barrel, you are, in effect, getting a new rifle. Note to BobLee: You might want to consider checking out the condition of the bore,with a borescope) before purchasing.

 

[BobLeeSwagger223]

Thanks for all the help! I already have a 22-250 die set because I owned a Rem varmint years ago and I'm also thinking if/when the barrel gives up 260 or 7-08 might be fun to try. I'm trying to get the rifle for what the action/stock would be worth to me

Thanks for all the help!

 

[fordwrench]

I really like benchmark in the 22 250. I never tried the heavier bullets but the 40gr v max moly really worked well. Work up carefully.

 

[montana_native]

Have a very nice load with 50gr V-maxes and Benchmark. 3800-ish FPS.

 

[ForneyRider]

I use varget for .22-250 with 50gr VMax below the Hodgdon MAX coming out the barrel at 3900fps from 26in 700 VLS. I use Nosler brass.

Hodgdon data for Benchmark is similar performance to Varget for 50gr .22-250. I use the Benchmark for .223 with excellent results. If I didn't have consistent, proven load of Varget, I would use the Benchmark. Benchmark meters better.

 

[smoking-brass]

Give imr 4007 a try with the 55gr bullets...it is well worth a try... works great for my friends 22-250. I'm a big fan of H380 in the 22-250 with 40gr bergers. Good luck

 

[North Fork]

My 22x250 likes H380 and 55gr vmax

 

[22/250]

ive used benchmark in my 22/250 winny stealth and didnt find it very good. mind i didn tmess about with the load enough to really try it.

i use varget now for 50 grain v max or blizking and it shoots very well.

and now i have got a rpa 22/250 and its super accurate with 50 grain nostler and imr4007 ssc powder.

i would like to work up a nice load next for 60 grain berger and imr 4007 ccc

 

[Rust]

Started using RL-15 for 22-250 many years ago and have had no reason to bother trying anything else, the rifle likes either the 50 or 55 gr Vmax. As a side benefit I also use RL-15 in .308 and .223 (with heavy bullets and a fast twist barrel) which helps reduce inventory.

 

[SShooterZ]

I have found Varget and a 52 gr Sierra to be the most accurate out of 3 different 22-250s.

Benchmark has been good, Varget better.

 

[L461]

I use Benchmark and 50 V-maxes in my 22-250 and easily get 3850 fps out of a 24 inch barrel.Check the ADI website for load info they are the manufacturers of Benchmark.

 

[SS427]

My 22-250 shoots IMR 3031 the best, which is very close to the burn rate of Benchmark. With H380 and Varget, it would shoot okay, but not as good. This is the opposite of what it should do. So Benchmark is worth a try, but like many before said it really should be too fast of a powder for a 22-250.

 

[ForneyRider]

Hodgdon Benchmark is ADI Benchmark 2.

 

[jasophil1]

IMR 8208 40gr barnes varmiator.

 

[rebel]

Looks like I might be getting a really good deal on a 22-250. The barrel is a 1 in 14 so the heaviest it will probably shoot is 55's. I have over a thousand 50 v-max that I'm not using and I already use Benchmark in my 223's.

Anyone using this combo? Looks like BM won't be the velocity load which is no big deal but Hodgdons site says it'll work.

How many rounds is average for barrel life assuming you don't overheat it?

Hey Bob, you know me, always going off the reservation. Try AR Comp, wonderful powder. My factory ADL shoots one hole and a bit at 200 yards. PM me for details.

 

[22DASHER]

Oh man now this is a zombie

 

[JSH]

11 years, it’s due for a new tube.