Barrel life on a 1-7" twist 22-250

fireguyty

fireguyty

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Jul 24, 2010
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#1
Hey guys, I can't get the idea out of my head about a 22-250 shooting 90 grain VLDs out of my DTA SRS. Should be able to squeeze 3000-3100 FPS with out being hot. That .552 BC would be flat, and should be accurate.

So, what kind of barrel life? A 22-250 with a 1-14 shooting 40 grainers at 4200 is good for around 1000 rounds. So will the slower speed increase life, or does the fast twist kill life as well?

Thanks in advance. I considered putting this in reloading, and gunsmithing but nothing seemed to fit very well.
 
#2
Re: Barrel life on a 1-7" twist 22-250

I had a barrel with 800rnd and one SH Cup under its belt and it was still 1/2moa all day long. I sold it and went to a 1-7.75 5 contour because my wife was shooting more and more and the MTU contour was too heavy.

my load
80gr Amax
33.5gr Varget
2.6 AOL
3200FPS

One of my buddies bought the barrel and round count is now 1000+ and still 1/2moa
 
#4
Re: Barrel life on a 1-7" twist 22-250

Would love to speculate 5000 rounds but I probably around 2500ish...... but for this particular gun I would consider accurate no worse than 1moa, it shoots tiny little bug holes now but I could care less as long as it stays under 1moa...
 
#6
Re: Barrel life on a 1-7" twist 22-250

I had searched for the answer a lot on google. Most people seemed to just take a guess at the matter and had no real world experience. Some said that they thought barrel heat through friction from such a fast twist like 1-7 with a velocity of 3000-3100 would be almost the same as a 1-14 twist 40 grainer going 4200.

Again, no real world experience.
 
#8
Re: Barrel life on a 1-7" twist 22-250

Before I'd even go there I'd try to get my head around trying to make a case with a shorter body length, steeper body taper, and different shoulder angle feed in your rifle since single loading is not an option.

Make up some dummy rounds and try feeding them before you go any further with the idea.

If you break 1000 rounds on a barrel with sub 1/2 MOA accuracy I'd be surprised. Whenever you increase the bearing surface (something the long/heavy bullet use does) you increase the wear on the barrel.
 
#10
Re: Barrel life on a 1-7" twist 22-250

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: _9H</div><div class="ubbcode-body">Before I'd even go there I'd try to get my head around trying to make a case with a shorter body length, steeper body taper, and different shoulder angle feed in your rifle since single loading is not an option.

Make up some dummy rounds and try feeding them before you go any further with the idea.

If you break 1000 rounds on a barrel with sub 1/2 MOA accuracy I'd be surprised. Whenever you increase the bearing surface (something the long/heavy bullet use does) you increase the wear on the barrel.</div></div>

Yeah, thats a good point. Someone said they had a 22-250 for their DTA and it worked, but it would be a bitch to just take someone's word on it and have it not feed.
 
#11
Re: Barrel life on a 1-7" twist 22-250

Going to re-chamber a Douglas 1-8 .223 Rem barrel to .22-250 Rem in a couple of days with intentions of shooting 80gr SMK @ 3000 FPS. Hoping to get a minimum of 2000 rounds out if it(why? cause that is how many 80gr SMK I have.)
 
#12
Re: Barrel life on a 1-7" twist 22-250

I run a 6mm based off the 22-250 case and can tell you that it would not be a good idea to assume it is interchangeable with a 308 case in your mags and rifle. The DTA's mag design with all the room at the front (I believe) may deal with the body taper and rounds curving the tips forward as you add more rounds to the mag better than an AICS mag, but you better test it.
 
#13
Re: Barrel life on a 1-7" twist 22-250

Just an FYI-

A very,very knowledgeable individual in the bullet industry once told this to me "friends don't let friends shoot 90 grainers" (speaking only of .224 projectiles of course)

They are very unpredictable and inconsistent over multiple shot strings. That BC is very alluring and has sucked a lot of people in. If you already have other guns that do what you need them to do and really just want to build this gun for the heck of it then by all means go for it, but if not you may want to build something that is already known for being a great cartridge.



On another note someone mentioned wanting to get 3000fps out of 80gr amaxes with a 22-250. It will do that very easily. It is actually not all that hard to get 3000 out of a 223 Ackley with the 80's. I can get 3180 in my 22" 223 ackley with the 80's with out piercing primers, but it shoots better at 3075 and it is stupid accurate. One of those guns that is so accurate most would have to see it before they would believe it. Really though this is very common with the 223 ackleys they are just an inherently accurate cartridge.


Scott
 
#14
Re: Barrel life on a 1-7" twist 22-250

So you seek advice from those with experience?
What is your experience with the 22-250?
I ask because you state so surely that the barrel will only make it 1000 rounds with 40 grainers and high velocity.
I have shot 3500 plus rounds of Nosler 50 grain BT varmint bullets at 3980 FPS over the last few years of PD hunting thru one gun. It is 1 in 14 twist and S/S and is a factory barrel. The rifle started out shooting 1/2 MOA and is now able to hold 3/4 MOA and I can still make shots easily at 500+ yards with it.
IMHO, the 22-250 is much less harmful to a barrel (good barrel) than it is given credit.
I also agree with Scott on the 90 grain pills. I've just never seen them be as accurate as the 75-80 grain bullets. Also, the 223 AI is one helluva accurate round!
 
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#15
Re: Barrel life on a 1-7" twist 22-250

I wouldn't worry about feeding issues, as I stated I ran my gun at the SH Cup 2010. If it will run at that match it will run anywhere. I was using AICS mags and Surgeon bottom metal.

BUT as stated the tapered body did make a slight difference. I could only run "reliably" 7 rounds in a 10 round mag,so I had to give up 3rnds big deal...... I had 2 five rnd mags and 2 "7" rnd mags I was covered for any event.

I don't know crap about the 90's but I'd shoot the 80amax against anybody anytime any caliber and not feel any disadvantage.
 
#16
Re: Barrel life on a 1-7" twist 22-250

Scott,
I appreciate the input on the 90's. I don't have any experience with them, nor do I know anyone with it. I think if it feeds I'll still go through with a 1-7". I'll be that sucker that tries the 90s, and if it doesn't work I'll shoot an 80. I guess I'm that ass that gets great advice and still goes with it. I can't run a 223 through the DTA so thats out.

Shoot,
You seem to have a bite to your post, and I don't know what I said to get that (I'm probably reading to much into it). Anyway, I owned a Kimber Pro varmint that I only got to around 100 round count, but I hunt coyotes competitively. My partner shoots 50 grainers, and his accuracy went to hell around 1100. Several of my friends shoot 22-250 with 40 grainers and shot em out before 1000.

Thanks for the help both of you.
 
#17
Re: Barrel life on a 1-7" twist 22-250

no bite intended, just stating how things worked on my rig, but I don't know how the DTA mags work.

Good plan try the 90's and if it doesn't produce the results you want try the load I used for the 80's

ps I had a 24" barrel, and have since dropped down to a 22" barrel

here is what it looks like now
phonepics050.jpg
 
#18
Re: Barrel life on a 1-7" twist 22-250

Didn't mean it to be biting, just wondered if you were giving that number from experience or read it on the internet somewhere.
Remember, round count is not always what destroys accuracy.
I recommend only stainless, hand lapped, custom barrels for getting long term results. Factory barrels usually poop the bed way too early. The worst I've seen on barrels has been the 243. My R700 VLS was completely shot out in just under 1000 rounds. I'm talking chunks missing from the lands. It was chrome moly steel and not the first Remington barrel I've gotten short life from. My 22-250 barrels are Krieger Criterion on Weatherby varmint guns. In the beginning I too felt they would not give long service life (mostly due to what others told me) but it has been proven wrong.
 
#19
Re: Barrel life on a 1-7" twist 22-250

I run an 8 twist 22in barrel and have 2900 and some change on it. It still shoots tiny holes when I do my part. I am running the 80gr Amax and the 80gr Berger mildly. Both run equally well for me. With this being said it is one of my favorite rounds...
 
#20
Re: Barrel life on a 1-7" twist 22-250

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: CnC1018</div><div class="ubbcode-body">I run an 8 twist 22in barrel and have 2900 and some change on it. It still shoots tiny holes when I do my part. I am running the 80gr Amax and the 80gr Berger mildly. Both run equally well for me. With this being said it is one of my favorite rounds...</div></div>

Wow, would you please define mildly? How fast, and powder please.

Ty
 
#21
Re: Barrel life on a 1-7" twist 22-250

Im running the 75 grain A Max out of my Hart 1/9 22-250 at 3350 fps. Accuracy is excellent, 25 MOA correction to 1000 yds, and feeds wonderfully from HS 10 shot mags. Cant speak to how long the barrel might last, but Im very pleased with it thus far.
 
#23
Re: Barrel life on a 1-7" twist 22-250

I can only testify for factory loads but my dad has been shooting ground hogs with his for 20 years, gotta be over 5k by now and still shoots as good as the day he got it.
 
#29
I had a 1 in 7 22-250 that went about 700 rounds shooting 80 a max with 4000MR and 4831SC at 3100 FPS. I think it just got rough in the throat and started blowing up bullets. I would do it again, and maybe treat it just a little nicer. :ROFLMAO: :ROFLMAO: :ROFLMAO:

The post that said 3000 rounds from a 22-250 made me want to screw my 22-250 barrel on, by a ton of brass, and use 22-250 instead of 223 for prairie dogs.
 
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#32
fireguyty said:
Hey guys, I can't get the idea out of my head about a 22-250 shooting 90 grain VLDs out of my DTA SRS. Should be able to squeeze 3000-3100 FPS with out being hot. That .552 BC would be flat, and should be accurate.

So, what kind of barrel life? A 22-250 with a 1-14 shooting 40 grainers at 4200 is good for around 1000 rounds. So will the slower speed increase life, or does the fast twist kill life as well?

Thanks in advance. I considered putting this in reloading, and gunsmithing but nothing seemed to fit very well.
Click to expand...

Neither twist nor bullet speed have much to do with barrel life, at least nothing that anyone can prove.

The duration and intensity of the flame coming out of the cartridge mouth and scorching the throat is 99% of what kills a barrel.

Simplistic analysis never works
 
#35
308pirate said:
Neither twist nor bullet speed have much to do with barrel life, at least nothing that anyone can prove.

The duration and intensity of the flame coming out of the cartridge mouth and scorching the throat is 99% of what kills a barrel.

Simplistic analysis never works
Click to expand...


Yup. Give it a decent amount of time between shots. Get the barrel hot and the life takes a nose dive.

Also why I take 4-6 rifles when I'm going to shoot prairie dogs. Slow fire a mag, set it aside. grab another. I run 223 AR's for the sub 500 yard shots, stretch the 22-250's and 6mm br out to as far as I can see them.
 
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