.22-250 Remington

 

Tech Specs

 

Technical Specifications

 

Country of Origin United States
Diameter - Bore .219” (5,56mm)
Diameter - Groove .224” (5,69mm)
Introduced 1965 (wildcat 1934)
Pressure - Max Average 65,000 psi (420 MPa CIP)
Regulators SAAMI & CIP
Groove Details 6 x 0.080” (2,03mm)
Shellholder - RCBS 3
Twist - Proof Barrel 1:14” (356mm)

 

Features

 

Cartridge Essentials

 

Action Size Recommended Miniature length & .223 bolt face
Barrel Life 1,800 – 2,350 rounds
Case - Body Taper 2.29°
Case - Neck Length .2484” (6,31mm) = 110.9%
Case - Trim Length 1.904” (48,36mm)
Parent Case 250-3000 Savage
Relative Capacity 43.5 gr water (2,824 cc)
Shoulder Angle 28°

 

Factory Loads

 

Typical Factory Load Guidelines for Africa
Brand NameBullet WeightBullet DescriptionVelocity FpsEnergy Ft/LbTrauma Potential 100% Expansion
Federal 60-gr Game – Nosler Part 3,500 fps 1,623 ft/lb 28.7
Hornady 55-gr Varmint – VMax 3,680 fps 1,654 ft/lb 9.7 (fragment)
Hornady 50-gr Varmint – VMax 3,800 fps 1,604 ft/lb 9.4 (fragment)


Optimum Game Bullet Optimum Application Bands (averaged)
BandVelocity ParametersStartEnd
Red-Band ( > 2,600 fps) 0 yds ± 225 yds
Green-Band ( ≤ 2,600 fps - ≥ 2,200 fps) ± 225 yds ± 325 yds
Amber-Band ( ≤ 2,200 fps - ≥ 2,000 fps) ± 325 yds ± 400 yds

 

Recommendations

Bullet Recommendations for Africa
Varmints Frangible
Antelope Fifth (bonded core) or seventh generation (solid expansion monometal) bullets
 
African Game Weight Recommendation
≤ 75-lb ( ≤ 35-kg)
 
Most Suitable African Species (assuming legality)
Varmints Aardwolf, civet, honey badger, black-back jackal, side-striped jackal, vervet monkey, otter, serval and the wild dog
Cats Cheetah, caracal (lynx)
Antelope Common duiker, red duiker, grey rhebok, Cape grysbok, Sharpe’s grysbok, klipspringer, oribi and steenbok. Given premium bullets and proper shot placement it can be stretched for use on antbear, blesbok, bontebok, brown hyena, Arabian oryx, springbok, common reedbuck and impala. There are way more suitable cartridges for the latter species though.
* Read all about these animals in the book Game Animals of the World by Chris & Tilde Stuart
 
Optics Recommendations
Eye Relief Non critical
Exit Pupil ≥ 2,5mm
Magnification: Red-Band ≥ 7x
Magnification: Green-Band ≥ 12x - ≤ 14x
Magnification: Amber-Band ≥ 16x - ≤ 18x
Objective Lens ≥ 48mm - ≤ 56mm
Parallax Adjustability Yes
Reticules Fine with reference bars
 
Handloading Recommendations
Load Development 0.5 grain increments
Primer Standard (Match) Large Rifle
Propellant 60-gr: Medium-burning rifle: ≥ IMR-4895 to ≤ IMR-4350
  55-gr: Medium-burning rifle: ≥ IMR-8208 to ≤ IMR-4007
  50-gr: Medium-burning rifle: ≥ IMR-8208 to ≤ IMR-4007
Tips Follow precision handloading steps

 

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