Cartridge is from Ammo Manufacture: Double Tap 320gr  Hunters WFN Hard Cast
Ballistics Information: 44 Magnum
Muzzle Velocity: 1325 fps
Muzzle Energy: 1247 ft. lbs
Brass Make/Headstamp: Star Line - Brass
Bullet Make/Weight/Construction/Info; Length 0.8700"/Dia. 0.4305": 320gr. LBT WFN
MEPLAT 0.3450"
Actual weight 312.4 grains   Crimp squeezed bullet to 0.4185"
C.O.A.L.: 1.6220"
Primer: Nickel color
Case: Diameter 0.4530" Crimp Diameter 0.4510" (Tight taper) Length 1.2700"
Powder Description/Positive ID/Type/Charge H-110 or 296 Weight: 20.6 grains

  The Buffalo Bore Deer Grenade has a ton of powder and no wonder it went 1600 FPS 


What do you think about these bullet weights from DT? I believe in the round up or down theory for advertising. My opinion is false advertising 

BTW... The DT Hunter 320 gave me 1333 FPS average if you wanted to adjust the rating in the picture. The flap said 1325 FPS.

You had written 1133 fps, and that was what I had used, but went back and adjusted the velocity to box flap and changed the energy rating to match that level...

  Yup. I put a 1 where a 3 should be 

Cartridge is from Ammo Manufacture: Hunting Shack Manufacturing (HSM) 305gr WFN Hard Cast gas check
Ballistics Information: 44 Mag
Muzzle Velocity: 1260 fps
Muzzle Energy: 1175 ft. lbs
Brass Make/Headstamp: StarLine - Brass
Bullet Make/Weight/Construction/Info; Length 0.8945"/Dia. 0.4310": Hard Cast 305gr.     
MEPLAT 0.3420"
Actual weight 311.4 grains 
C.O.A.L.: 1.6270"
Primer: Nickel color
Case: Diameter 0.4535" Crimp Diameter 0.4415" (heavy roll) Length 1.2750"
Powder Description/Positive ID/Type/Charge Weight: ? LilGun ? 17.0 grains
Tested by Intercooler Redhawk 7.5" 1269, 1245, 1211. Average = 1241.66 FPS/ 1044 LBS

Cartridge is from Ammo Manufacture: Winchester   240gr JSP
Ballistics Information: 44 Mag
Muzzle Velocity: 1180 fps
Muzzle Energy: 741 ft. lbs
Brass Make/Headstamp: Winchester Western  (WW) - Brass
Bullet Make/Weight/Construction/Info; Length 0.7000"/Dia. 0.4300": Winchester JSP 240 gr.
MEPLAT 0.2815"     (concave base) cannelure 0.4215"
Actual weight 239.8 grains 
C.O.A.L.: 1.5910"
Primer: Brass color
Case: Diameter 0.4530" Crimp Diameter 0.4510" (light) Length 1.2795"
Powder Description/Positive ID/Type/Charge Weight: H-110 or 296  25.0 grains
Tested by Intercooler Redhawk 7.5" 1364, 1304, 1346, 1404, 1336, 1403. Average = 1359.5 FPS/ 985 LBS

Cartridge is from Ammo Manufacture: Underwood Ammo 340gr +P+ LLFNGC
Ballistics Information: 44 Magnum
Muzzle Velocity: 1425 fps
Muzzle Energy: 1533 ft. lbs
Brass Make/Headstamp: StarLine - Brass
Bullet Make/Weight/Construction/Info; Length 0.9850"/Dia. 0.4310":  340gr. LLFNGC
Lead Long Flat Nose Gas Check
Actual weigh 337.6 grains  Cannelure Diameter 0.3945" 
Meplat 0.3535" / 0.4820" sticking out of the casing
C.O.A.L.: 1.7440"
Primer: Brass color
Case: Diameter 0.4535" Crimp Diameter 0.4345" (heavy crimp) Length 1.2735"
Powder Description/Positive ID/Type/Charge Weight: Lil'Gun  20.0 grains

Cartridge is from Ammo Manufacture: Northern Hills Precision Ammo 240gr FMJ
Ballistics Information: 44 Mag
Muzzle Velocity: N/A fps  (1110 fps)
Muzzle Energy: N/A ft. lbs  (656ft/lb)
Brass Make/Headstamp: Star Line - Brass
Bullet Make/Weight/Construction/Info; Length 0. 6770"/Dia. 0.4290": FMJ plated 240gr.     Actual weight 240.8 grains
Meplat 0.2970" / (crimp groove 0.4285") (concaved base) (dia. ahead of crimp 0.430)
C.O.A.L.: 1.5975"
Primer: Nickel color
Case: Diameter 0.4530" Crimp Diameter 0.4520" (medium) Length 1.2815"
Powder Description/Positive ID/Type/Charge Weight: Alliant Unique 10.0 grains

Cartridge is from Ammo Manufacture: Prograde 320gr Bear Load WFN Hard Cast
Ballistics Information: 44 Mag
Muzzle Velocity: N/A fps  (tested 1358 fps)
Muzzle Energy: N/A ft. lbs  (tested 1312 ft/lb)
Brass Make/Headstamp: Star Line - Brass
Bullet Make/Weight/Construction/Info; Length 0. 9100"/Dia. 0.4310": Hard Cast 320gr. Gas Check   Actual weight 320.2 grains 
Meplat 0.3490" / cannelure 0.4045"
C.O.A.L.: 1.7035"
Primer: Nickel color
Case: Diameter 0.4530" Crimp Diameter 0.4465" (heavy) Length 1.2780"
Powder Description/Positive ID/Type/Charge Weight: H-110 / 296  22.0 grains

Two extremes. The Northern Hills were weaker than 10mm and the Prograde ripped! 

Cartridge is from Ammo Manufacture: Wolf Ammo  240gr JHP Gold
Ballistics Information: 44 Mag
Muzzle Velocity: 1542 fps
Muzzle Energy: 1266 ft. lbs
Brass Make/Headstamp: PPU - Brass
Bullet Make/Weight/Construction/Info; Length 0.7180"/Dia. 0.4290": JHP 240gr.     
HP depth 0.2140" / HP dia. 0.1250" / Mouth 0.260" / Cannelure 0.4255"
Actual weight 240.8 grains   (some black sealant)
C.O.A.L.: 1.5970"
Primer: Brass color
Case: Diameter 0.4560" Crimp Diameter 0.4500" (medium) Length 1.2770"
Powder Description/Positive ID/Type/Charge Weight: ?  ? 23.4 grains *
(very fine flatten ball)(similar to H-110 / 296 performance by weight)

Cartridge is from Ammo Manufacture: Buffalo Bore 305gr LFN GCHard Cast
Ballistics Information: 44 Mag +P+
Muzzle Velocity: 1325 fps
Muzzle Energy: 1188 ft. lbs
Brass Make/Headstamp: Star Line - Brass
Bullet Make/Weight/Construction/Info; Length 0. 8895"/Dia. 0.4315": Hard Cast 340gr.     Actual weight 302.2 grains  Meplat 0.3440"
C.O.A.L.: 1.6230"
Primer: Nickel color
Case: Diameter 0.4535" Crimp Diameter 0.4375" (heavy rolled) Length 1.2695"
Powder Description/Positive ID/Type/Charge Weight: H-110 / 296 20.8 grains

Cartridge is from Ammo Manufacture: Underwood Ammo 340gr +P+ LLFNGC 11_14
Ballistics Information: 44 Magnum
Muzzle Velocity: 1400 fps
Muzzle Energy: 1479 ft. lbs
Brass Make/Headstamp: StarLine - Brass
Bullet Make/Weight/Construction/Info; Length 0.9860"/Dia. 0.4310":  340gr. LLFNGC
Lead Long Flat Nose Gas Check
Actual weigh 338.4 grains  Cannelure Diameter 0.3945" 
Meplat 0.3535" / 0.4825" sticking out of the casing
C.O.A.L.: 1.7385"
Primer: Large Pistol Nickel color
Case: Diameter 0.4535" Crimp Diameter 0.4355" (heavy crimp) Length 1.2740"
Powder Description/Positive ID/Type/Charge Weight: Lil'Gun  20.6 grains









Very close to same done (Reply #81 on: February 21, 2014)

  I gave my results to Kevin after the last test. These were supposedly changed to the Buffalo Bore loading to hit the 1425 FPS advertised number. Given 20.6 vs 22.2 you found in BB... not enough to get there!