Fast 22 idea, has it been done?

[Phil]

Yup.................





CAUTION... ;D

 

[Erik Cortina]

Now I'm thinking 22-300 WSM!

 

[MLC]

I think that a 22/6.5x68 Schuler would be better than the WSM .

 

[Eddie Harren]

http://t2.gstatic.com/images?q=tbn:ANd9GcSZ7F0ictMP1iM14LARgKCDxCCAXQ_ISp1yVLkOatAI11dey2QD

From P. O. Ackley's Handbook of Reloading, Named the 22 Eargesplitten loudenboomer.

 

[357Mag]

MLC -

From Homer Powley's " Powley Papers " ( 1974 Guns & Ammo Annual )

Muzzle velocity in 26" barrels:
Expansion Ratio
Calibre Bullet Wt 4 5 6 7 8 10 12
.224" 66 4,050 3,865 3,700 3,580 3,400 3,170 2,990

Powley's article included a graph which one could use to figure out expansion ratios ( in this case 28" barrel ) for calibres
.20 through .50". While Powley's graph included reference powder charges of up to 80gr, the plot line for a .224" cal
application went off the chart @ around ( estimated ) 64 grains.
( Note: Powley's original " computer " used DuPont IMR powders as a baseline reference. However, the expansion ratio graph
does not denote any particular powder(s) ).

As you can see from the included data above, a .224" cal wildcat is more likely to be a " barrel burner, as expansion ratios
decrease..... especially beyond about 4.5

If nothing else, Powley's data seems to place 65gr of powder as the theoretical limit for a .224" cal wildcat; beyond which....
expansion ratio cant' even be quantified.


With regards,
357Mag

 

[40X Guy]

Just my 2 cents. Now im a 220 swift lover.
My 220 swift with 75gr amax will do anything that any other 22 cal can do.

IM READY FOR THE SWIFT HATERS TO CHIME IN SO GIVE IT TO ME LOL!

Jortz, I'll back you on your comment! I'm not a hater, I'm a true lover of the Swift. For anyone not familiar with my latest project, i am using neck turned Norma brass with a diameter of .252 loaded in a .254 chamber 8 twist 28 inch finished Rock Creek barrel with brake. I'm running a "mild" load of 39.8 grains N550 under 75 A-Max at a chroneyed speed of 3,551 with an ES of 2 in the standard unimproved Swift case. This load is absolutely devastating on chucks. I had backed it down from 40.1 N550 and groups shrunk considerably along with ES. I am also annealing the brass and applying all my 1000 yard brass prep techniques to the Norma brass. Have had chroneyed loads of RL-17 hitting 3,659 fps actual but accuracy was not there. No unusual case prep, no blowing out cases, just using the baddest a$$ 22 cal cartridge to ever come down the pike with modern barrels, high energy powders and the venerable 75 A-Max bullet!

Frank

 

[40X Guy]

And as an addendum, I had Neil Jones build me an 8 twist Lilja barreled 22-284 in the mid 90's. Case prep was really tedious, necking down in 3 separate steps then neck turning etc and I had no clue what i was doing back then. I initially started with Sierra 80 grain MK's and I could not get them to shoot. Ended up shooting 69 Sierras for the heck of it and I was getting them over 4000 fps with great accuracy and they held together! Wish I still had that rifle and with what I know now which is still little to nothing but more than i did 20 years ago... Just something about the 22 cals throwing bullets at warp speed. Barrel life never enters into the equation for me. They make em every day...Just don't run extended shot strings.

Frank

 

[357Mag]

Here's a pic of my wildcat " .22-35 Rem " .


Case volumnes ( from an on-line Powley Computer):

Case Capacity grains H2O
.22-250 43
.250 Savage 46
.220 Swift 48
6.5 X 52 Carcano 49
6.5 X 54 M-S 50
.35 Remington 51
.300 Savage 52
.260 Remington 53
.223WSSM 54
.243 Win 54


Caliber reductions made to parent case will lower the case volumne some.
( see .22-250 rating vs its parent case.... .250 Savage )

.35 Rem brass as parent case was a great way to obtain case capacity increase over things like .22-250,
w/o having to blow out shoulders.


With regards,
357Mag

 

[riflelooney]

shooting a 220 swift AI shilen bbl @27 in no 4 contour 1-9 twist...7828 w a berger 75 vld @ 3500 . Can push it to 3600 but hard on brass...now here is what I built it for...Barnes 62 ttsx , imr 4831 3875 f sec...l would not want to be a whitetail in the way of this thing..just had it built this spring ...but youth doe here in a few weeks in sw pa....there is a blind, a 350 yard long hayfield behind my house...and a 14 year old daughter waiten to try it....lookin forward with great anticipation to that evening soon with my girl...and hopefully some tendorloins sliced thin and fried quickly in some butter and onions.......and I
Can only but hope that my daughter savors those memorys as the years pass

 

[40X Guy]

riflelooney, your daughter will be well served by that combo. Very interesting build! Best of luck to you and daughter this coming Pa. deer season.

Frank

 

[MLC]

shooting a 220 swift AI shilen bbl @27 in no 4 contour 1-9 twist...7828 w a berger 75 vld @ 3500 . Can push it to 3600 but hard on brass...now here is what I built it for...Barnes 62 ttsx , imr 4831 3875 f sec...l would not want to be a whitetail in the way of this thing..just had it built this spring ...but youth doe here in a few weeks in sw pa....there is a blind, a 350 yard long hayfield behind my house...and a 14 year old daughter waiten to try it....lookin forward with great anticipation to that evening soon with my girl...and hopefully some tendorloins sliced thin and fried quickly in some butter and onions.......and I
Can only but hope that my daughter savors those memorys as the years pass

That Barnes is going to punch through like the deer is tissue paper.
Awesome.

 

[22XC Guy]

My .22x6XC fired Norma cases average 49.74 grains of H2O, per the "Overbore" Cartridge Define by Formula, my .22XC case volume to bore area ratio is 1262.1 with a calculated loaded round. I started with a zero free bore chambering, 948 rounds later, I had accumulated 0.068" to 0.070" of throat erosion, just the right amount of free bore for 75 grain A-Max bullets..

Last year, my shooting partner and I cleaned up the ole girl, tested, this rifle likes chasing the lands, we went to a local match, the 970th round scored a 145 out of 150 in short range.. I have two new reamers from Dave Kiff, .22XC and a 6XC, since then, I had my Krieger barrel set back and it's still shoots great... The 22XC, “Modern Day Swift per Varmint Hunter 2009 article”.. I'm not afraid to put the petal to the metal with it, why have one if you don't plan on using all the horsepower..

38.7 grains of Hodgdon Hybrid 100V, it's cruising ~3468fps, but if I go to the 4350's or Reloader 17, it kicks into mach mode like using nitrous..

Steve

 

[357Mag]

22XC -

Howdy Steve -

Out of curiousity ... what was your barrel length before/after " setback "


With regards,
357Mag

 

[13red56]

Here's a pic of my wildcat " .22-35 Rem " .


Case volumnes ( from an on-line Powley Computer):

Case Capacity grains H2O
.22-250 43
.250 Savage 46
.220 Swift 48
6.5 X 52 Carcano 49
6.5 X 54 M-S 50
.35 Remington 51
.300 Savage 52
.260 Remington 53
.223WSSM 54
.243 Win 54


Caliber reductions made to parent case will lower the case volumne some.
( see .22-250 rating vs its parent case.... .250 Savage )

.35 Rem brass as parent case was a great way to obtain case capacity increase over things like .22-250,
w/o having to blow out shoulders.


With regards,
357Mag

Where did you get your reamer, what dies do u use, and when u neck down the brass how much neck turning is needed?

 

[22XC Guy]

357Mag,

29.250" original start and 27.250" after the set back..

Steve

 

[357Mag]

13Red56 -

Howdy !

Please check your PM's.


With regards,
357Mag Kevin

 

[MrMajestic]

If I did a .224" caliber I would do a 22-284 and run 80 - 90 grain bullets out of it. I'm sure it has been done, does anyone know what kind of speeds I could expect from a 26" barrel?

Erik, I played with this cartridge using QL. I plugged in the 80 grain A-Max out of the doughnut and H1000 with a 28" and 30" as that's what I would run. It said 3500 and almost 3600 w/30" but with pressures in the low 50's. It's on my short list and I have a 721 action to screw it on. As soon as I can sneak the CC from my Wife I will give Kiff a call for the reamer.

What does QL say for 26" barrel at full pressure (60 K)?

3500 fps using Reloader 25 with same parameters and a 26" tube, 60K and some change.

 

[Phil]

George,

I never even thought to look at Norma for brass.......Hmmmmm


Phil.

 

[MLC]

shooting a 220 swift AI shilen bbl @27 in no 4 contour 1-9 twist...7828 w a berger 75 vld @ 3500 . Can push it to 3600 but hard on brass...now here is what I built it for...Barnes 62 ttsx , imr 4831 3875 f sec...l would not want to be a whitetail in the way of this thing..just had it built this spring ...but youth doe here in a few weeks in sw pa....there is a blind, a 350 yard long hayfield behind my house...and a 14 year old daughter waiten to try it....lookin forward with great anticipation to that evening soon with my girl...and hopefully some tendorloins sliced thin and fried quickly in some butter and onions.......and I
Can only but hope that my daughter savors those memorys as the years pass

Did your daughter connect with a doe?
I ended up going 22-250AI.

 

[JamesnTN]

I'd have to look at my data but I had a 22-243 pushing the 80 grain moly coated bullets at 3650 fps with RL-22 my 22 Dasher pushing the same moly bullet is at 3400 fps with H4350

On my personal experience the velocity gain to powder used over a 22-243 just isn't worth the effort. I could push accurately those 80's just as fast and sometimes faster than most did on larger volume cases from my 22-243