Home Forums Factory 10mm Ammo pull-downs Buffalo Bore Ammo

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    • #1048
      The_ShadowThe_Shadow
      Moderator

      Buffalo Bore Barnes 155gr TAC-XP
      Ballistics Information: 10mm Auto
      Muzzle Velocity: 1500 fps
      Muzzle Energy: 774 ft. lbs
      This is a full power 10MM load that is within SAAMI spec and is thus safe for use in ANY/ALL 10mm pistols. Loading this long-for-weight all copper bullet in the 10MM case, causes powder capacity limitations that we do not experience with shorter/heavier lead alloy bullets and thus our advertised 1500 fps velocity cannot be reached, regardless of how may internal ballistics charts tell us that we should be able to launch a 155gr. bullet @ 1500 fps from a 5 inch barrel, that long light weight bullet simply uses too much of the available case capacity to do so.
      1455 fps – Custom 1911 with Nowlin 5 inch barrel Energy 728 ft.lbs
      1429 fps – Colt Delta Elite, 5 inch barrel Energy 702 ft.lbs
      1401 fps – Glock Mod 20, 4.6 inch barrel Energy 675 ft.lbs
      Pictures: Before/After disassembly:
      Brass Make/Headstamp: Star Line – Brass
      Bullet Make/Weight/Construction/Info; Length 0.7340”/Dia. 0.3995”: 155gr. TAC-XP
      Actual weigh 154.6 grains Crimp Diameter 0.3995”
      HP Dia 0.2270” HP Depth 0.3735” Mouth 0.2710”
      C.O.A.L.: 1.2380” / 1.2380”
      Primer: Nickel color
      Case: Diameter 0.42150” Crimp Diameter 0.4210” Length 0.9880”
      Powder Description/Positive ID/Type/Charge Weight: Power Pistol 11.0 grains
      Powder was jamb packed tight, had to scrape it out to get the weight.

      Buffalo Bore 180gr Sierra JHP
      Ballistics Information: 10mm Auto
      Muzzle Velocity: 1350 fps
      Muzzle Energy: 728 ft. lbs
      Pictures: Before/After disassembly:
      Brass Make/Headstamp: Remington – Brass
      Bullet Make/Weight/Construction/Info; Length 0.6355”/Dia. 0.4000”: 180gr. Sierra JHP
      Actual weigh 180.0 grains Crimp Diameter 0.3995”
      HP Dia 0.1710” HP Depth 0.1855” Mouth 0.2610”
      C.O.A.L.: 1.2465”
      Primer: Nickel color
      Case: Diameter 0.4220” Crimp Diameter 0.4215” Length 0.9880”
      Powder Description/Positive ID/Type/Charge Weight: Power Pistol 10.0 grains
      Tested in 10mm S&W1006 5″ 1349 fps June 8, 2013
      Case expanded to 0.4275″, primer slightly flattened, case shows some stress.

      Buffalo Bore 180gr Hornady XTP (supplied by Benchrst Jason Canfield Jan 2016)
      Ballistics Information: 10mm Auto
      Muzzle Velocity: 1350 fps
      Muzzle Energy: 728 ft. lbs
      Brass Make/Headstamp: A-USA – Brass
      Bullet Make/Weight/Construction/Info; Length 0.6195”/Dia. 0.4000”: Hornady 180gr. XTP
      Actual weigh 179.4 / 180.0 grains / Crimp Line Diameter 0.3995”
      HP Dia 0.1200” / HP Depth 0.2000” (tapered) / Mouth 0.2300”
      C.O.A.L.: 1.2510” / 1.2530” / 1.2535” / 1.2535” / 1.2565” / 1.2575”
      Primer: Large Pistol Brass color
      Case: Diameter 0.4205” Crimp Diameter 0.4210” / 0.4220” (medium) Length 0.9860”
      Powder Description/Positive ID/Type/Charge Weight: Accurate Arms #9 14.6 / 14.8 grains

      Buffalo Bore 180gr Hornady XTP
      Ballistics Information: 10mm Auto
      Muzzle Velocity: 1350 fps
      Muzzle Energy: 728 ft. lbs
      Brass Make/Headstamp: Jagemann JAG – Brass
      Bullet Make/Weight/Construction/Info; Length 0.6200”/Dia. 0.4000”: Hornady 180gr. XTP
      Actual weigh 180.4 grains / Crimp Line Diameter 0.3985”
      HP Dia 0.1200” / HP Depth 0.2050” (tapered) / Mouth 0.2300”
      C.O.A.L.: 1.2510”
      Primer: Large Pistol Brass color
      Case: Diameter 0.4215” Crimp Diameter 0.4215” Length 0.9880”
      Powder Description/Positive ID/Type/Charge Weight: Accurate Arms #9 14.8 grains

      Buffalo Bore 180gr JHP (Data was provided by Mr.Revolverguy 12/2019)
      Ballistics Information: 10mm Auto
      Muzzle Velocity: 1324 fps Verified with Chronograph
      Muzzle Energy: 700 ft. lbs
      Brass Make/Headstamp: Starline – Brass
      Bullet Make/Weight/Construction/Info: Length 0.619”/Dia. 0.4000”: Hornady XTP 180gr. JHP
      HP depth 0.106” / HP dia 0.168”
      Actual weight: 180.2 grains
      C.O.A.L.: 1.251 Measured 10 rounds all very consistent
      Primer: Large Pistol Silver color
      Case: Crimp Diameter 0.421” Middle Diameter 0.419” Base/Web: Before the extractor groove 0.421″
      Powder Description/Positive ID/Type/Charge Weight: Alliant Power Pistol 9.8 grains

      Buffalo Bore 200gr FMJ-FN Montana Gold (Benchrest Mar 2016)
      Ballistics Information: 10mm Auto
      Muzzle Velocity: 1200 fps
      Muzzle Energy: 639 ft. lbs
      Brass Make/Headstamp: Star Line – Brass
      Bullet Make/Weight/Construction/Info; Length 0.6550”/Dia. 0.4000”: 200gr. MG CMJ-FN
      MEPLAT 0.2350” / Flat Base (capped)
      Actual weight 199.8 / 200.0 grains Crimp squeezed bullet N/A
      C.O.A.L.: 1.2500” / 1.2510” / 1.2515” / 1.2520” / 1.2530”
      Primer: Large Pistol Brass color
      Case: Diameter 0.4215” Crimp Diameter 0.4225” (medium) Length 0.9870”
      Powder Description/Positive ID/Type/Charge BE-86 Weight: 9.0 / 9.0 grains

      Buffalo Bore 220gr Hard Cast
      Ballistics Information: 10mm Auto
      Muzzle Velocity: 1175 fps
      Muzzle Energy: 674 ft. lbs
      Brass Make/Headstamp: Star Line – Brass
      Bullet Make/Weight/Construction/Info; Length 0.7415”/Dia. 0.4010”: 220gr. Hard Cast
      MEPLAT 0.2900” / Flat Base
      Actual weight 219.4 grains Crimp squeezed bullet to 0.4005”
      C.O.A.L.: 1.2555”
      Primer: Nickel color
      Case: Diameter 0.4220” Crimp Diameter 0.4225” (medium) Length 0.9875”
      Powder Description/Positive ID/Type/Charge Power Pistol Weight: 8.4 grains

    • #1135
      10mm_extraordinaire10mm_extraordinaire
      Participant

      Thumbs up.

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