American Made Prefit Gun Barrels
Preferred Barrels Chambers List
At Preferred Barrel Blanks, we come to work every day to provide top-quality barrels in a respectable time frame at a fair price.
Chamber List
17 Caliber
Twist Rates
RimX 17 Cal
17 Aguila
17 HMR
17 Mach II
17 WSM
.375" 17 Cal
17 Mach IV
17 Tactical
17 Remington
17 Remington Fireball
17-222 Remington
17-223 Remington
17 VHA
17x50mm
Chamber List
20 Caliber
Twist Rates
.375" 20 Cal
20 Practical
20 Tactical
20 Vartarg
20 Vartarg Turbo
204 Ruger
20-221 Fireball
.440" 20 Cal
20-6mm PPC
.473" 20 Cal
20 BR
20-250 Remington
Chamber List
22 Caliber
Twist Rates
RimX 222 Cal
22LR Lapua Match
22 WMR Match
.375" 22 Cal
22 Nosler
22 TCM
221 Remington Fireball
222 Remington
222 Remington Magnum
223 Remington
223 Remington Match
223 Remington AI 40°
223 Wylde
5.56x45 Nato
.440" 22 Cal
22 ARC
22 Grendel
22-6mm PPC
224 Valkyrie (.430" bolt face)
.473" 22 Cal
22 BR (.260” NK .080”FB)
22 Creedmoor (4 options)
22 Dasher α .115" FB
22 Dasher α .169" FB
22 GT .120" FB
22 GT .169" FB
220 Swift
220 Swift AI
224 TTH
224 Weatherby
225 Winchester
22-250 Remington
22-250 Rem AI
22-277 Sig Fury
22-6.5x47mm Lapua
.532" 22 Cal
223 WSSM
Chamber List
6mm
Twist Rates
.375" 6mm
6mm TCU
6x45mm
.440" 6mm
6mm AR (aka 6 Grendel)
6mm AR Turbo 40°
6mm ARC α .091" FB (.275" neck, αlpha reamer)
6mm Hagar (.420" bolt face)
6mm PPC
.473" 6mm
240 Weatherby
243 Winchester
243 Ackley Improved 40°
6mm BRA 40°
6mm BRN 0FB
6mm BRN α .104" FB (.273" neck, αlpha reamer)
6mm Creedmoor α .183" FB (.277" neck, αlpha reamer)
6mm Creedmoor Match (.275" neck, 0 FB, requires freebore input)
6mm Dasher Lapua α (6 versions)
6mm Dasher Norma (.272" neck, .104" FB)
6mm GT α .120"FB .274" neck (SAAMI)
6mm GT α .170"FB .274" neck
6mm Remington
6mm Rem Improved 40°
6mm XC
6mm-06
6mm-06 Improved 40°
6mm-284 Winchester
6x47mm Lapua
.532" 6mm
6-6.5 PRC (.279 neck, .140 FB)
243 WSSM
Chamber List
25 Caliber
Twist Rates
.375" 25 Cal
25x45mm Sharps
.473" 25 Cal
25 Creedmoor BJ
25 Creedmoor α (.150"FB, .291" neck)
25 GT α .150"FB
25 GT α .180"FB
250 Savage
257 Roberts
257 Roberts Ackley Improved
25-06 Remington
25-06 Improved (40° shoulder)
25-284 Winchester
25x47 Lapua
.532" 25 Cal
25-6.5 PRC
25-7 PRC
25 RSAUM
25 SAW (WTO, .292" neck, .112" FB)
25 WSSM
257 Weatherby
25-300 WSM
Chamber List
6.5mm
Twist Rates
.375" 6.5mm
6.5mm TCU
.440" 6.5mm
6.5mm Grendel
6.5mm PPC
.473" 6.5mm
260 Remington
260 Remington Improved 40°
6.5mm BR
6.5mm Creedmoor .110"FB
6.5mm Creedmoor α .160"FB (.297" neck, αlpha reamer)
6.5mm Creedmoor α (SAAMI .199"FB, .297" neck)
6.5mm-06 A-Square
6.5mm-06 Improved 40°
6.5mmx284 Norma
6.5mmx284 Norma Match*
6.5x47mm Lapua
6.5x55mm (SAAMI, 0 FB)
6.5x55mm Match (.175” FB, .297” neck)
.532" 6.5mm
26 Nosler
264 Winchester Magnum
6.5 GAP 4S
6.5 Remington Magnum
6.5-270 WSM
6.5-270 WSM
6.5 PRC
6.5-300 PRC
6.5-300 Weatherby
Chamber List
270 Caliber
Twist Rates
.375" 270 Cal
277 Wolverine
.420" 270 Cal
6.8 Rem SPC II
.473" 270 Cal
270 Winchester
277 Sig Fury
6.8 Creedmoor
.532" 270 Cal
27 Nosler
270 Weatherby
270 WSM
6.8 Western
Chamber List
7mm
Twist Rates
.375" 7mm
7mm TCU
.473" 7mm
280 Remington
280 Ackley Improved α (SAAMI .317" neck .160" FB, αlpha reamer)
284 Shehane
284 Winchester
7mm x 57
7mm x 57 Ackley Improved
7mm BR
7mm SAW α .145" FB (.317" neck, αlpha reamer)
7mm SAW Type II
7-08 Remington
7-08 Remington Match
7-08 Remington Ackley Improved
.532" 7mm
28 Nosler .300" FB (195gr Berger)
7mm Backcountry
7mm Firebird
7mm PRC α .233" FB (.319" neck, αlpha reamer)
7mm Remington Magnum
7mm Remington Magnum 1:8" (+.050" FB)
7mm RSAUM
7mm STW
7mm Weatherby Mag
7mm WSM
7-6.5 PRC (7 PRC-W)
7mm-300 PRC
Chamber List
30 Caliber
Twist Rates
.375" 30 Cal
300-221 Whisper
300 AAC Blackout
300 HAM'R
.473" 30 Cal
30 BR
30 REM AR
30 TC
30-06 Springfield α (.120”FB, .341” neck)
30-06 Match (.120" FB, .3425" to .3404" conical neck)
30-06 Improved 40°
300 Savage
308 Winchester α .096"FB (.342" neck, αlpha reamer)
308 Winchester Match (.080"FB, .340" neck)
308 Winchester Ackley Improved 40°
7.5x55 Swiss (.308" Groove)
.532" 30 Cal
30 Nosler
300 H&H Magnum
300 PRC
300 RCM
300 Rem SAUM
300 RUM
300 Weatherby
300 Win Mag
300 Win Mag Match .050"FB (3.600", .341" neck)
300 Win Mag Match .150"FB (3.700", .341" neck)
300 WSM
308 Norma Mag
.585" 30 Cal
300 Norma Mag
.600" 30 Cal
30-378 Weatherby Magnum
Chamber List
311 Caliber
Twist Rates
.440" 311 Cal
7.62x39mm
Chamber List
8mm
Twist Rates
.473" 8mm
8x57mm
.532" 8mm
8x68mm S
8mm Remington Magnum
325 WSM
Chamber List
338 Caliber
Twist Rates
.440" 338 Cal
338 ARC
.473" 338 Cal
338 Federal
338 WBY RPM
338-06 Improved 40°
8.6 BLK
.532" 338 Cal
338 Edge
338 RCM
338 RUM
338 Winchester Mag
340 Weatherby
.585" 338 Cal
338 Lapua Magnum
338 Lapua Improved 40°
338 Lapua Rogue
338 Norma Mag
Chamber List
9mm
Twist Rates
9mm
350 Legend
357 Sig
380 Auto
9mm Luger
9mm WM
Chamber List
35 Caliber
Twist Rates
.473" 35 Cal
35 Remington
35 Whelen
358 Hoosier
358 Winchester
.532" 35 Cal
350 Remington Magnum
358 WSSM IDC
Chamber List
9.3mm
Twist Rates
.473" 9.3mm
9.3x57
9.3x62
.532" 9.3mm
36 Nosler
Chamber List
375 Caliber
Twist Rates
.473" 375 Cal
375 Raptor
.532" 375 Cal
375 H&H Mag
375 Ruger
Chamber List
10mm
Twist Rates
.440" 10mm
10mm Auto
10mm Magnum
40 Smith & Wesson
400 Legend
Chamber List
.429/44 Caliber
Twist Rates
.473" 44 Cal
44 Auto
Chamber List
451 Caliber
Twist Rates
.473" 451 Cal
45 ACP
45 GAP
45 Raptor
450 Bushmaster
Chamber List
458 Caliber
Twist Rates
