New bbl how long ?

[Ironworker]

Ordered a Brux 8"twist #4 contour bbl for my Weatherby Vanguard. ( Factory bbl is bad) I replaced stock with a Bell &Carlson Medalist sporter. This will be a predator/Varmint rifle. So how long of a bbl 24"or 26"

 

[L.Sherm]

Caliber?

 

[Ironworker]

22/250 I plan to shoot bullet from 60-75 gr weights

 

[maxscm]

Barrel Length is a personal choice or Use specific ...
I have a 20" Barreled 22/250AI , 8-tw threaded for a Suppressor that is a Coyote Killing Machine..handles excellent.
I have 26 " Barreled 22/250 14-tw, threaded for a Suppressor that handles like a telephone pole, but Kills Crows way out there sitting on a Bi-pod or a Rest.

 

[357Mag]

Barrel Length is a personal choice or Use specific ...
I have a 20" Barreled 22/250AI , 8-tw threaded for a Suppressor that is a Coyote Killing Machine..handles excellent.
I have 26 " Barreled 22/250 14-tw, threaded for a Suppressor that handles like a telephone pole, but Kills Crows way out there sitting on a Bi-pod or a Rest.

Ordered a Brux 8"twist #4 contour bbl for my Weatherby Vanguard. ( Factory bbl is bad) I replaced stock with a Bell &Carlson Medalist sporter. This will be a predator/Varmint rifle. So how long of a bbl 24"or 26"

Ironworker -

Howdy !

Some info from " The Powley Papers " ( 1974 Guns & Ammo Annual ) :

Typical expansion Ratios
Cartridge Barrel Length
20" 24" 28"
.22-250 5.2 6.1 7.0
.220 Swift 4.8 5.6 6.5



Muzzle Velocity in 26-in barrels:
Calibre Bullet Expansion Ratios
Weight 4 5 6 7 8 10 12
.224" 66 4050 3865 3700 3580 3400 3170 2990



Hope this helps, some.


With regards,
357Mag

 

[357Mag]

Ironworker -

Howdy !

Lemme' try to gets this spaced-out, better !!

Some info from " The Powley Papers " ( 1974 Guns & Ammo Annual ) :

Typical expansion Ratios:
Cartridge Barrel Length
22-250 20"
5.2

.22-250 24"
6.1

.22-250 28"
7.0

.220 Swift 20"
4.8

.220 Swift 24"
5.6

.220 Swift 28"
6.5


Muzzle Velocity in 26-in barrels:
Calibre Bullet Wt Expansion Ratios
4 5 6 7 8 10 12
.224" 66 4050 3865 3700 3580 3400 3170 2990


Let's see if this worked ?!


With regards,
357Mag

 

[357Mag]

Howdy ! " Third time's a charm ".....

Some info from " The Powley Papers " ( 1974 Guns & Ammo Annual ) :

Cartridge - Barrel Length- Typical expansion Ratios
.22-250 - 20" - 5.2
.22-250 - 24" - 6.1
.22-250 - 28" - 7.0

.220 Swift - 20" - 4.8
.220 Swift - 24" - 5.6
.220 Swift - 28" - 6.5



Muzzle Velocity in 26-in barrels - .224" Calibre - Bullet Wt 66gr
Expansion Ratio 4 = 4050
Expansion Ratio 5 = 3865
Expansion Ratio 6 = 3700
Expansion Ratio 7 = 3580
Expansion Ratio 8 = 3400
Expansion Ratio 10 = 3170
Expansion Ratio 12 = 2990



With regards,
357Mag

 

[effendude]

Howdy ! " Third time's a charm ".....

Some info from " The Powley Papers " ( 1974 Guns & Ammo Annual ) :

Cartridge - Barrel Length- Typical expansion Ratios
.22-250 - 20" - 5.2
.22-250 - 24" - 6.1
.22-250 - 28" - 7.0

.220 Swift - 20" - 4.8
.220 Swift - 24" - 5.6
.220 Swift - 28" - 6.5



Muzzle Velocity in 26-in barrels - .224" Calibre - Bullet Wt 66gr
Expansion Ratio 4 = 4050
Expansion Ratio 5 = 3865
Expansion Ratio 6 = 3700
Expansion Ratio 7 = 3580
Expansion Ratio 8 = 3400
Expansion Ratio 10 = 3170
Expansion Ratio 12 = 2990



With regards,
357Mag

WTF does the above mean?

Scott

 

[357Mag]

WTF does the above mean?

Scott

Scott -

Howdy !

Data from ballistician Homer Powley lists " Expansion Ratio " for the .22-250, for the 3 barrel lengths.
Expansion Ratio changes w/ changes in barrel length and/or chamber size; dependent on which approach is used for the build. Given use of a .22-250 chambering, expansion ratio will change; as barrel length changes.

Info included expansion ratio for .220 Swift in the same barrel lengths, to help give an idea of how velocity changes as expansion ratio changes; in this case.... due to increase in chamber capacity.

Other sample chart listed obtainable vel for .224" cal; for a notional 66gr bullet.
That chart helps give an idea of obtainable expansion ratio and velocity changes; as listed for varying barrel lengths (longer even than those the OP listed ).


With regards,
357Mag

 

[Ironworker]

You list a 66gr bullet with expansion ratio of 4 in a 26" bbl with a MV of 4050 FPS ? Your 22/250 shoots a 66gr Bullet that fast ,I doubt it .............

 

[357Mag]

You list a 66gr bullet with expansion ratio of 4 in a 26" bbl with a MV of 4050 FPS ? Your 22/250 shoots a 66gr Bullet that fast ,I doubt it .............

Ironworker -

Howdy !

As stated previously, these data came from " The Powley Papers ", that appeared in " 1974 Guns & Ammo Annual "....

The velocity figure of 4050 fps from a notional 26" and an expansion ratio of 4, was listed under .224" cal.
That velocity figure was NOT listed for a specific .224" cal case, such as a .22-250 .
The only .22-250-specific data quoted, were the 5.2 expansion ratio for a 20" barrel, the 6.1 expansion ratio for a 24" barrel; and the 7.0 expansion ratio for a 28" barrel.

I can say that an expansion ratio of 4 from a 28" .224" cal barrel would suggest a powder charge of some 72gr, again... based on review of Powley's
Expansion Ratio/Calibre/Powder charge chart that was included in the article.
An expansion ratio of 4 in a .224" cal barrel/chambering would certainly qualify any such rifle as " over bore " capacity.

I appologize for any confusion that might have resulted from my trying to submit the above data... 3 individual times.
It appears the new forum format spaces things a bit differently, and my attempt to organize data in verticle columnes fell short of expectations.


With regards,
357Mag

 

[Titan700]

Good job 357 Mag very interesting

 

[Larryh128]

If you are carrying it 24" if shooting off of a bench 26" . Long barrels are not fun to carry any distance. I've shortened all of my 26" barrels to either 23 or 24" depending upon the caliber. They were just too unwieldly in hunting situations that I'm normally in.

 

[Larryh128]

I can guarantee you that the critter that's hit won't be able to tell the difference in barrel length. 25-50 fps is really nothing.

 

[Ironworker]

Are you implying that animals can't perform basic math ?

 

[Webster]

Are you implying that animals can't perform basic math ?

I agree. Varmints don't know math, % fill, % burn, rifle brand, barrel length, cartridge name, bullet brand or velocity. All they know is they are dead. Any good bullet at a decent velocity for it's intended use and distance works. For get all this Powley computer stuff and just shoot your rifle at a target and see what load gives small groups.

 

[clams243]

I agree. Varmints don't know math, % fill, % burn, rifle brand, barrel length, cartridge name, bullet brand or velocity. All they know is they are dead. Any good bullet at a decent velocity for it's intended use and distance works. For get all this Powley computer stuff and just shoot your rifle at a target and see what load gives small groups.

Best answer yet.

 

[savagedasher]

Best answer yet.

There is no difference with a fast or a slow miss . Larry

 

[Changeling]

Iron worker, the differences between a #4 barrel in 24" vs 26" is just a couple ounces. I have both lengths and like the 26 " barrels better because of higher velocity.
I now use 26" barrels in all my hunting rifles, It balances a rifle out better for me, and I like a little more weight forward to settle the barrel down when shooting. Also I REALLY like the free velocity advantage 26" barrels give you. It doesn't bother me in the least when I'm hunting in the woods (longer barrel). In the fields and scrub growth it's a non issue.
That excuse basically came (years ago) from mountain hunters going for sheep were the walking and terrain made moving treacherous, a shorter rifle definitely had advantages in that kind of terrain.


While I'm talking I might as well say I like the 220 Swift better then a 22-250 any day, very accurate and has more authority on varmints, especially way out there.
Hope this helps you, good luck with whatever you decide.

 

[Ironworker]

Iron worker, the differences between a #4 barrel in 24" vs 26" is just a couple ounces. I have both lengths and like the 26 " barrels better because of higher velocity.
I now use 26" barrels in all my hunting rifles, It balances a rifle out better for me, and I like a little more weight forward to settle the barrel down when shooting. Also I REALLY like the free velocity advantage 26" barrels give you. It doesn't bother me in the least when I'm hunting in the woods (longer barrel). In the fields and scrub growth it's a non issue.
That excuse basically came (years ago) from mountain hunters going for sheep were the walking and terrain made moving treacherous, a shorter rifle definitely had advantages in that kind of terrain.


While I'm talking I might as well say I like the 220 Swift better then a 22-250 any day, very accurate and has more authority on varmints, especially way out there.
Hope this helps you, good luck with whatever you decide.