Page 1 of 2 12 LastLast
Results 1 to 10 of 13

Thread: 22-243

  1. #1
    GunLoad Trainee
    Join Date
    Mar 2010
    Posts
    3

    Default 22-243

    I am looking for load data for a old wildcat. 22-243 Middelstead. I found it at a gunsmith deceased auction about 20 years ago. I bought it just for the large ring action but now I have a need for a fast 22 that will shoot a heavy bullet to buck high winds. The cases fireformed great with half a case of 380 and light bullets. Since then every load I have tried blowes out the primers. I have tried reduced loads for 22-250 and 220 swift as starting points with no succes with 70 gr Speer

  2. #2
    Dogs Like Him versifier's Avatar
    Join Date
    Dec 2005
    Location
    New Hampshire
    Posts
    1,853

    Default

    According to Handloader's Manual of Cartridge Conversions, it is basically a .22-250 with a 30 degree shoulder, case capacity 53.19grs water or 3.44CC. It is one of a bunch of similar wildcat cartridges in use before the .22-250 was accepted as a factory round. It is made most easily by simply fireforming a .22-250 in the Middlestead chamber and avoiding the extra work of necking down .243 cases and then reaming or turning the necks to correct thickness. The data listed there was from Middlestead in 1964:
    72gr bullet, IMR4831 45.0gr, 3450 fps

    Regular .22-250 data should be correct for it.

    First I would be checking the twist of the barrel to make sure the rifle wasn't set up for lighter bullets. 1:10 and 1:12 were and are very common .224 barrel twists, but they may have difficulty stabilizing such a long bullet. Like with the .223, 1:8 or 1:9 would be optimum for heavier bullets. (Bearing in mind that barrels can't read, some will nevertheless work fine despite not being of optimum twist. I have looked like an idiot before by declaring a 1:10 wouldn't stabilize a 70gr bullet and then watched the rifle's owner shoot a series of .5MOA groups with it.)

    I would be trying 4064, Varget, and RL15 with 70gr bullets as I think 380 might be a bit too slow - that may be part of the problem. Also, it is never safe to use reduced loads with a ball powder (I don't use 380 and I can't remember if it is ball, flake, or extruded).

    If the cases were formed from .243's, the necks may be much too thick for the chamber and pushing pressures well into the red zone or beyond. If you are blowing primers, something is causing overpressure.
    "Stand your ground.
    Do not fire unless fired upon.
    But if they mean to have a war let it begin here."
    - Capt. Parker, Lexington Militia, April 19, 1775

  3. #3
    GunLoad Trainee
    Join Date
    Mar 2010
    Posts
    3

    Default

    Tks for the info. My 243 brass is not the problem. I recast the chamber to check the neck dim. only to find no problem but I saw that I have a very long throat. That got me thinking about twist rate. Middelstead made up this cartridge to shoot heavy bullets at chucks across canyons, through the wind. I expected to find a twist rate of 7 or 8. I have a twist rate of 1 in 18. In 20 years of being a gunsmith I have never seen this rate before. Even 22 rimfire are 1 in 16 or 1 in 17. I guess I will be shooting very light bullets or getting a new barrel.

  4. #4
    Dogs Like Him versifier's Avatar
    Join Date
    Dec 2005
    Location
    New Hampshire
    Posts
    1,853

    Default

    1:18??!!! Wow. I have never heard of a .224 barrel with that fast a twist either and I used to make them. Sierra makes a pair of 40gr bullets, a HP and a BK. I would start with either of them and 3031, RL7, or 4895, but I don't know if they will stabilize. Just out of curiosity I might even try some 55gr cast over reduced charges of 3031 (26.5gr Cast Start). They might stabilize at the lower velocity where a jacketed bullet would not. The long throat puzzles me, unless it was an attempt to reduce chamber pressure ala Weatherby. He might have been custom swaging or casting super light bullets and built the rifle for testing them. There was a major trend towards faster and lighter in the early 60's. With that in mind, it seems to me like it was intended for hunting small varmints, not target work.
    "Stand your ground.
    Do not fire unless fired upon.
    But if they mean to have a war let it begin here."
    - Capt. Parker, Lexington Militia, April 19, 1775

  5. #5
    runfiverun runfiverun's Avatar
    Join Date
    Dec 2007
    Location
    soda springs idaho
    Posts
    657

    Default

    slow twist rifles beg for cast boolits i'd definatly explore that avenue.
    a 22 loverign in 60 or so grains might just be the ticket at 2700 fps from a fairly hard alloy [16-18 bhn] great for varmints,targets.
    for deer i'd look elsewhere or re-bbl.
    sounds like a re-chambered 22 bbl.

  6. #6
    Great Master
    Join Date
    May 2021
    Location
    Indonesia
    Posts
    1,264

    Default Highest Rated Judi Online Today Today Today

    To the guy asking about online casino games free signup bonus, online casino free spins codes, free online casino slots no deposit bonus, I highly suggest this luar biasa slot online domain or bandar slot terpercaya deposit pulsa, free online casino games win real money no deposit usa, online casino free play no deposit usa, judi online24jam terpercaya 2021 deposit pulsa, how to get free spins on online casino, as well as this hebat slot online situs not to mention judi online24jam terpercaya 2020 apk, win real money online casino south africa, can you play slot machines online for real money, new online casinos australia 2021 no deposit bonus, casino online no deposit bonus, on top of this keren judi online situs which is also great. Also have a look at this luar biasa judi online link on top of best online casino slots uk, situs judi togel online24jam terpercaya 2021, casino online no deposit bonus codes 2019, michigan casino online free money, online casino no deposit bonus keep what you win uk, alongside all this luar biasa bandar slot url as well as best free sign up bonus no deposit, online casino no deposit usa, judi online dapat duit, best casino online no deposit bonus, bandar slot terbaik, alongside all lihat slot online url which is also worth a look. I also suggest this luar biasa judi online domain on top of what is the best online casino to win real money, judi online menurut hukum, is there a slot machine app for real money, free online casino no deposit bonus codes, online casino free spins no deposit codes, and don't forget this luar biasa slot situs as well as online casino no deposit bonus keep what you win australia 2021, daftar bandar slot terpercaya, online casino no deposit bonus free chip, real casino games online free, online casino no deposit free spins australia, not to mention luar biasa judi online blog which is also great. Finally, have a look at this lihat judi online blog for good measure. See more Online Advice[/url] 34e9fe6

  7. #7
    Great Master
    Join Date
    May 2021
    Location
    Indonesia
    Posts
    1,264

    Default Most Excellent Medical Billing Tips Of 2021 Of 2021

    In response to the guy asking about medical billing and coding salary, patient care advisory committee, patient care assistant vet jobs, patient centred care model, I highly suggest this helpful remote patient monitor info on top of medical billing jobs in chennai, dental billing software free, medical billing and coding salary florida, what are the risks of electronic health records, look at this coolest medical billing advice alongside all what is telehealth modifier, tricare telehealth billing guidelines 2020, dental insurance billing software, medical billing and coding specialist, try this useful telehealth billing advice for how to do dental billing from home, remote patient monitoring devices in india, how to be a credentialing specialist, electronic health record standards for india 2016, Also don't forget this awesome telehealth billing blog on top of medical billing and collections job description, how to become a certified medical credentialing specialist, dental billing and coding pdf, dental billing coordinator salary, look at this excellent dental billing recommendations for telehealth billing during covid, how to become a dental biller, dental billing software comparison, See More [url=https://redjester.org/forums/showthread.php?tid=28249&pid=134540#pid134540]Most Top Rated Dental Billing This Year 4e9fe6d

  8. #8
    Great Master
    Join Date
    May 2021
    Location
    Indonesia
    Posts
    1,264

    Default Coolest Euro Stoxx Today Today Today

    In reply to the lady asking about euro stoxx 50 esg price eur, euro stoxx 50 etf spdr, euro stoxx 50 index futures contract specifications, Euro Stoxx 50, I highly suggest this best cac 40 index details on top of euro stoxx 50 components isin, euro stoxx 600 index yahoo finance, euro stoxx banks 3x, stoxx 50 etf, look at this greatest cac 40 index advice as well as euro stoxx 50 volatility index futures, euro stoxx 50 futures ticker, euro stoxx 50 options expiry time, euro stoxx 50 price return index, try this awesome cotizacion ibex 35 tips for euro stoxx 50 etf eur, euro stoxx 50 index futures trading hours, euro stoxx 500 boursorama, euro stoxx 600 dividend yield, Also don't forget this best euro stoxx 50 info alongside all euro stoxx 50 historical prices, euro stoxx 50 historical data sx5e historical rates, eurostoxx 50 live price, euro stoxx 500 etf, look at this excellent euro stoxx blog for euro stoxx 50 options multiplier, euro stoxx banks etf, euro stoxx 50 futures price, See More Today Info[/url] 7cd1_06

  9. #9
    Great Master
    Join Date
    May 2021
    Location
    Indonesia
    Posts
    1,264

    Default Coolest Slot Online Details Today

    In reply to the person asking about which online casino pays the best, best online casino uk no wagering requirements, judi online24jam terpercaya deposit pulsa, I highly recommend this peringkat tertinggi bandar slot toko or vegas casino online $100 no deposit bonus codes 2019, online casino free money code, best online casino app that pays real money, casino online slots free games, online casino uk king casino bonus, not to mention this membantu situs slot situs not to mention judi online24jam terpercaya 2020 pkv, online casino no deposit bonus free chip, free online casino no deposit bonus codes, ojo casino uk online casino games 50 free spins, online casino uk paypal, not to mention this luar biasa agen slot forum which is also great. Also have a look at this terbaik slot online url alongside all win real money online casino app, usa rtg online casino no deposit bonus codes, bandar slot terbaik, best real money online casino 2020, online casino bonus no deposit needed, on top of this luar biasa bandar slot situs for good measure. See more Of 2021[/url] 4d7b323

  10. #10
    Great Master
    Join Date
    May 2021
    Location
    Indonesia
    Posts
    1,264

    Default Suberb Slot Online Blog This Year

    To the guy asking about can you play casino slots online for real money, australian online casino no deposit bonus free spins, online casino free signup bonus no deposit required canada, I highly recommend this berguna slot toko or vegas casino online no deposit bonus codes may 2021, win real money online casino app, how to win real money online casino, bandar qq slot online, how to get free spins no deposit, as well as this luar biasa situs slot domain and don't forget casino live online romania, online casino slots uk, casino slots online index, bandar slot terpercaya deposit pulsa, online casino free spins no deposit australia, not to mention this luar biasa situs slot situs which is also great. Also have a look at this hebat agen slot domain alongside all best online casino with free spins, judi online24jam terpercaya 2020, online casino free bonus without deposit, judi togel online24jam terpercaya 2021, online casino no deposit bonus free spins australia 2020, on top of this keren situs slot halaman and don't forget online casino games free signup bonus, bandar game slot online, vegas casino online no deposit codes 2021, casino online free, which online casino has the best payouts, on top of hebat judi bola domain which is also worth a look. I also suggest this lihat judi bola situs as well as daftar judi online24jam terpercaya 2021, judi online24jam deposit pulsa slot, nama toto situs bandar judi togel dan slot online terpercaya, online casino no deposit free spins, daftar bandar slot terpercaya, and don't forget this peringkat tertinggi sbobet bola halaman alongside all online casino slots real money usa, aplikasi judi online24jam terpercaya 2021, free online casino games real money no deposit uk, best casino online no deposit bonus, online casino free spins no deposit australia, not to mention baru judi bola blog which is also great. Finally, have a look at this luar biasa judi bola domain for good measure. See more Info[/url] de2c2e5

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check        

Gunloads.com Sponsored Links