.256 Win. Mag. || .257 | 75gr | Speer FN

Load data for 14 loads in caliber .256 Win. Mag. with .257 | 75gr | Speer FN bullet including underlying parameters such as bullet length, cartridge length and case capacity.
Product number: LID_B6084_C233
  

Reloading data for caliber .256 Win. Mag. with .257 | 75gr | Speer FN bullet.

Reloading data for caliber .256 Win. Mag. with .257 | 75gr | Speer FN bullet.
PowderChargeMax. PressureBarrel 23.6''Barrel 60cmBarrel 18.9''Barrel 48cm
WeightFRpsibar% *V(0) fpsV(0) m/szV(0) fpsV(0) m/sz
Accurate 5744Min:**.*Min:12.8gr12.8gr | 0.83g81.0%38653266576%218866793%214665492%
Max:**.*Max:13.7gr13.7gr | 0.89g87.1%45078310889%233971395%229069893%
Accurate No. 11 FSMin:**.*Min:13.7gr13.7gr | 0.89g81.0%37579259174%218266597%214265395%
Max:**.*Max:14.7gr14.7gr | 0.95g86.1%43859302486%232070798%227769497%
ADI AR 2205Min:**.*Min:12.7gr12.7gr | 0.82g81.0%36172249471%205162598%201861597%
Max:**.*Max:13.9gr13.9gr | 0.90g88.6%44657307988%223168099%219566998%
ADI AR 2207Min:**.*Min:14.4gr14.4gr | 0.93g93.0%31531217462%215665795%210664293%
Max:**.*Max:15.0gr15.0gr | 0.97g97.2%34751239668%224768596%219867094%
IMR 4227Min:**.*Min:12.5gr12.5gr | 0.81g83.0%31212215261%200561193%196559991%
Max:**.*Max:14.7gr14.7gr | 0.95g97.2%45005310389%233971396%229369995%
Lovex D060Min:**.*Min:12.5gr12.5gr | 0.81g81.0%36695253072%213965293%209663991%
Max:**.*Max:13.7gr13.7gr | 0.89g89.1%45078310889%233971395%229069893%
Lovex D063Min:**.*Min:13.9gr13.9gr | 0.90g81.0%38551265876%219566993%214665491%
Max:**.*Max:14.8gr14.8gr | 0.96g86.1%45005310389%233671295%228769793%
Lovex S053Min:**.*Min:12.3gr12.3gr | 0.80g84.0%30806212461%202161697%198860696%
Max:**.*Max:14.2gr14.2gr | 0.92g96.1%41756287982%229770099%225768898%
ReloadSwiss RS 36Min:**.*Min:13.6gr13.6gr | 0.88g83.0%31241215462%207363293%203161991%
Max:**.*Max:15.7gr15.7gr | 1.02g96.6%44309305587%239573096%234671595%
Shooters World BlackoutMin:**.*Min:13.9gr13.9gr | 0.90g81.0%38551265876%219566993%214665491%
Max:**.*Max:14.8gr14.8gr | 0.96g86.1%45005310389%233671295%228769793%
Shooters World Buffalo RifleMin:**.*Min:12.5gr12.5gr | 0.81g81.0%36695253072%213965293%209663991%
Max:**.*Max:13.7gr13.7gr | 0.89g89.1%45078310889%233971395%229069893%
SNPE Vectan BA6 1/2Min:**.*Min:11.6gr11.6gr | 0.75g86.0%31024213961%1929588100%1909582100%
Max:**.*Max:13.1gr13.1gr | 0.85g97.0%40161276979%2146654100%2123647100%
Vihtavuori N110Min:**.*Min:11.6gr11.6gr | 0.75g81.0%34650238968%2080634100%2051625100%
Max:**.*Max:13.1gr13.1gr | 0.85g91.5%45643314790%2310704100%2277694100%
Vihtavuori N120Min:**.*Min:14.0gr14.0gr | 0.91g91.0%30516210460%209063796%204462394%
Max:**.*Max:15.0gr15.0gr | 0.97g97.2%35288243370%222467897%217566396%


FR ... fill rate of the cartridge
%* ... max pressure of load in percent of the maximum allowed pressure for this caliber
z ...  powder burnt in percent

... cells marked in yellow are not dangerous but indicate possible (but not necessary) suboptimal characteristics such as extensive muzzle flash or inaccurate loads.

IMORTANT: Scale down to 90% when printing to ensure the load table gets displayed correctly!

Caliber: .256 Win. Mag.
Propellant: ADI AR 2205, ADI AR 2207, Accurate 5744, Accurate No. 11 FS, IMR 4227, Lovex D060, Lovex D063, Lovex S053, ReloadSwiss RS 36, SNPE Vectan BA6 1/2, Shooters World Blackout, Shooters World Buffalo Rifle, Vihtavuori N110, Vihtavuori N120
Bullet Weight: 75 gr | 4.9 g
Bullet Diameter: 0.257 '' | 6.53 mm
Primer Size: Large Rifle (LR)
Bullet Length:0.60 '' | 15.2 mm
Case Length (l3):1.28 '' | 32.5 mm
Cartridge Length / OAL:1.57 '' | 39.8 mm
Seated Depth:0.31 '' | 8.0 mm
Case Capacity:22 Grains of Water | 1.43 cm3
Speer
Speer’s reputation for making the world's finest component bullets and loaded ammunition goes all the way back to 1943. That’s when Vernon Speer started building bullets because reloaders couldn't get the components they needed from ammo companies during World War II. Although he initially focused on hunting rifle bullets, he also built the first mass-produced jacketed handgun bullets for hunting and law enforcement. In the 1960s, he put some of those bullets into loaded ammunition in the now-famous Lawman® line. 
And today, Speer Gold Dot® is the most trusted duty ammunition for law enforcement. We offer the same loads to civilians for personal protection that’s simply beyond compare. We still manufacture our products in the small city of Lewiston, Idaho. The original product lines have been expanded and new ones added. But through the changes, our formula for success has been constant: Determination, self-reliance and independence that show in all of our ammunition and components.
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