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10mm Ammuntion => Factory 10mm Ammo pull-downs => Topic started by: The_Shadow on November 24, 2017, 07:05:08 PM

Title: Underwood 150gr Lehigh Defense Xtreme Hunter (100% solid copper) IC 11/2017
Post by: The_Shadow on November 24, 2017, 07:05:08 PM
Cartridge is from Ammo Manufacture: Underwood 150gr Lehigh Defense Xtreme Hunter (100% solid copper) (provided by Intercooler 11/2017)
Ballistics Information: 10mm Auto
Muzzle Velocity: 1425 fps
Muzzle Energy: 677 ft. lbs
Brass Make/Headstamp: Underwood - Nickel
Bullet Make/Weight/Construction/Info; Length 0.6750”/Dia. 0.3995” / 0.4000”: 150gr XH
Actual weigh 150.4 / 150.4 grains  (recessed cross) 0.0185” Crimp Diameter 0.3990” 
5 power bands / 4 grooves 0.3805” upper grove or cannelure 0.3850”
MEPLAT  0.2440” (wide cross)  (inner cross) 0.1260” / flat base
C.O.A.L.: 1.2450” / 1.2465”
Primer: Large Pistol primer Nickel color
Case: Diameter 0.4215” Crimp Diameter 0.4210” / 0.4210” (Light Crimp)Length 0.9875”
Powder Description/Positive ID/Type/Charge Weight: Power Pistol  11.2 / 11.4 grains

(https://s20.postimg.org/4j34mbk4d/IMG_0273.jpg)

(https://s20.postimg.org/8s7uojsjh/IMG_0274.jpg)

(https://s20.postimg.org/qi9j9jge5/IMG_0275.jpg)

(https://s20.postimg.org/3tkca1jlp/IMG_0276.jpg)

(https://s20.postimg.org/ure9bm471/IMG_0277.jpg)

(https://s20.postimg.org/xlhep73u5/IMG_0278.jpg)

(https://s20.postimg.org/fvfq44nod/IMG_0279.jpg)
Title: Re: Underwood 150gr Lehigh Defense Xtreme Hunter (100% solid copper) IC 11/2017
Post by: 1Shot on December 16, 2017, 01:46:28 PM
Excellent information.Would your source happen to have the ballistic coefficient for the Lehigh Defense 150g. Extreme Hunter bullet? I'm looking to create a ballistic table for hunting. I carried the original FBI SW1076 and the Performance Center 1076. The 10mm has excellent ballistic performance with many possibilities.
Title: Re: Underwood 150gr Lehigh Defense Xtreme Hunter (100% solid copper) IC 11/2017
Post by: The_Shadow on December 16, 2017, 04:04:08 PM
Hello 1Shot, Lehigh is not showing their 150 gr 0.400 Xtreme Hunter as components so the BC or other is not listed.
Here are the listed BC info for some and you might use 0.150 for the 150 grain in your calculations...

140 grain
Caliber: .400
Bullet Weight (gr): 140
Length (in): 0.630
BC (G1):  0.147
Velocity (fps): 800-4,000
FTM - Fluid Transfer Monolithic
Lead Free

115 grain
Caliber: .400
Bullet Weight (gr): 115
Length (in): 0.630
BC (G1):  0.121
Velocity (fps): 800-4,000
FTM - Fluid Transfer Monolithic
Lead Free
 
100 grain
Caliber: .400
Bullet Weight (gr): 100
Length (in): 0.555
BC (G1):  0.087
Minimum Twist Rate: 1:16
Velocity (fps): 750-4,200
FTM - Fluid Transfer Monolithic
Lead Free

41 cal
Caliber: .410
Bullet Weight (gr): 150
Length (in): 0.700
BC (G1):  0.158
Minimum Twist Rate: 1:20
Velocity (fps): 700-4,200
FTM - Fluid Transfer Monolithic

https://www.lehighdefense.com/collections/bullets?page=2 (https://www.lehighdefense.com/collections/bullets?page=2)
Title: Re: Underwood 150gr Lehigh Defense Xtreme Hunter (100% solid copper) IC 11/2017
Post by: 1Shot on December 16, 2017, 04:57:50 PM
Thank you for the B.C. s. I'll certainly try the .150. We have a special 3 day season coming up and I want to try the 150 vs their 200 XTPs. I need a real quick drop on the deer. Close quarters and very selective shooting lanes. Of course, Murphy may just give me a nice day in the woods and no targets. Later!