Chambers List
Match Grade Machine Custom Gun BarrelsWe have developed quite a stash of chamber reamers over the years while building custom barrels. *If you do not see the chamber you are interested in this chambers list, feel free to give us a call and we can see what we can do for you.*
We take our sweet time in the chamber reaming process. We make sure our chambers are properly aligned and correctly headspaced. Also, none of our pistol chambers use the SAAMI forcing cone throats, rather we separately add a tight cylindrical "rifle" type throats with 1*-30 lead angles. This ensures proper bullet alignment to the bore and grooves without any radical jump. Starline Brass offers an excellent array of brass in both modern and odd-ball cartridges, check them out for your brass needs!
For those who hand load and take full advantage of the single shot capabilities of not having to fit their rounds in magazines or blind mag boxes, we offer custom chamber services at no extra charge. In most cases, we can ream chambers with specific neck diameters and throat lengths to accommodate custom hand-loaded ammunition. Please feel free to give us a call and we can get your barrel built exactly how it should!
17 Cal (.172) – Chambers List
17 Mach II (22 LR Necked Down)
17 Aguila (22 LR Necked Down)
17 K Hornet
17 Ackley Bee
17 Mach IV
17 - 222 Remington
17 Tactical
17 VHA
17 HMR (22 Mag Necked Down)
17 Squirrel
17 Ackley Hornet
17 Hornady Hornet
17 Fireball
17 Remington
17 x 50
17 - 223 Remington
Twist Rates Available
1 – 9
20 Cal (.204) – Chambers List
20 Squirrel
20 Ackley Hornet
20 Vartarg
20 Tactical
20 TNT
20 Practical
20 BR (Encore Only)
20 Ackley Bee
20 x 5.7 x 28
20 Vartarg Turbo
204 Ruger
20 - 221
20 PPC (Encore Only)
Twist Rates Available
1 – 11
1 – 8.5
22 Cal (.224) – Chambers List
22 LR Match (.222 Bore)
22 WRM (.224 Bore)
22 K Hornet
5.7 x 28
22 Squirrel
222 Remington
218 Bee
223 Remington
22 Remington Jet
22 TCM
223 Wylde
22 PPC (Encore and G2 Only)
22-250 Remington (Encore Only)
22-243 Middlestead (243 Win) (Encore Only)
220 Swift Ackley Improved (Encore Only)
224 Texas Trophy Hunter (Encore Only)
22 Creedmoor (Encore Only)
22 GT (Encore Only)
22 Dasher 169 Freebore (Encore Only – For 95gr SMK)
22 Short Match (.222 Bore)
22 CCM (.224 Bore)
22 Hornet
221 Remington Fireball
222 Remington Magnum
218 Mashburn Bee
219 Donaldson Wasp (Plus Long 1.813" Version)
22 Mag Match
219 Zipper
223 Remington AI 40°
224 Valkyrie (Encore and G2 Only)
22 ARC (Encore and G2 Only)
225 Winchester (Encore Only)
22-250 Ackley Improved (Encore Only)
22-243 Winchester (Encore Only)
220 Swift (Encore Only)
22-6 Remington Ackley Improved (Encore Only)
22 BR (Encore Only)
224 Weatherby (Encore Only)
22 Dasher 115 Freebore (Encore Only)
Twist Rates Available
1 – 6 (95gr +)
1 – 6.5 (Shorter Subsonic)
1 – 7 (90gr or Subsonic)
1 – 7.5
1 – 8 (70gr – 80gr)
1 – 9 (60gr – 70gr)
1 – 12 (40gr – 55gr)
1 – 14 (30gr – 40gr)
1 – 16 (Rimfire 22LR)
6mm (.243) – Chambers List
6mm x 47 (6mmx222 Rem Mag)
6mm Vartarg Turbo
6mm TCU
6mm AR (Encore and G2 Only)
6mm AR Turbo 40* (Encore and G2 Only)
6mm x 30-30 Ackley Improved (Encore and G2 Only)
6mm ARC (Encore and G2 Only)
6mmx47 Lapua (Encore Only)
6mm Dasher Norma (Encore Only)
243 Winchester (Encore Only)
6mm Remington (Encore Only)
6mm Ackley Improved (Encore Only)
6mm x 284 Winchester (Encore Only)
6mm Vartarg
6mm x 45mm (6mmx223 Remington)
6mm PPC (Encore and G2 Only)
6mm-6.5mm Grendel (Encore and G2 Only)
6mm x 30-30 Winchester (Encore and G2 Only)
6mm Hagar (Encore and G2 Only)
6mm BR Norma (Encore Only)
6mm Dasher (Encore Only – 104 Freebore)
6mm-250 Ackley Improved (Encore Only)
6mm Creedmoor (Encore Only)
6mm-06 (Encore Only)
6mm XC (Encore Only)
240 Weatherby (Encore Only)
Twist Rates Available
1 – 7 (100gr+ Shorter Barrels)
1 – 7.5 (100gr +)
1 – 8 (90gr +)
1 – 10 (70gr – 90gr)
25 Cal (.257) – Chambers List
25-20 Winchester
256 Super Mag
25 x 45mm Sharps
25 x 30-30 Winchester (Encore and G2 Only)
25-35 Ackley Improved (Encore and G2 Only)
257 Roberts Ackley Improved (40 Degree) (Encore Only)
25-06 Ackley Improved (Encore Only)
250 Savage Improved (Encore Only)
25 PRC Black Jack (Encore Only)
256 Winchester Magnum
25-35 Winchester
257 TCU
25 x 30-30 Ackley Improved (Encore and G2 Only)
257 Roberts (Encore Only)
25-06 Remington (Encore Only)
250 Savage (Encore Only)
25 Creedmoor (Encore Only)
25x47mm Lapua Black Jack (Encore Only)
Twist Rates Available
1 – 7 (131gr+ Shorter Barrels)
1 – 7.5 (131gr+)
1 – 10 (75gr-120gr)
6.5mm (.264) – Chambers List
6.5mm TCU
6.5mm x 30-30 Winchester (Encore and G2 Only)
6.5mm PPC (Encore Only)
6.5mm-250 Savage (Encore Only)
6.5mm - 284 Norma Match (Encore Only)
6.5-06 A-Square (Encore Only)
260 Remington (Encore Only)
6.5mm Remington Magnum (Encore Only)
264 Winchester Magnum (Encore Only)
6.5mm Grendel (Encore and G2 Only)
6.5mm x 30-30 Ackley Improved (Encore Only)
6.5mm Creedmoor (Encore Only)
6.5mm BR Remington (Encore Only)
6.5mm-284 Norma (.297″ Neck) (Encore Only)
6.5 PRC (Encore Only)
6.5mm-06 Ackley Improved (Encore Only)
260 Ackley Improved (Encore Only)
6.5 x 55mm Swedish (Encore Only)
6.5 x 55mm Improved (Encore Only)
Twist Rates Available
1 – 7 (147gr +)
1 – 7.5 (140gr + Shorter Barrels)
1 – 8 (90gr - 140gr)
270 Cal (.277) – Chambers List
270 Ren
6.8 Remington SPC II (Encore and G2 Only)
277 Wolverine (1-7″ Blanks Available)
270 Winchester (Encore Only)
Twist Rates Available
1 – 7 (Subsonic)
1 – 8
1 – 9
1 – 10
7mm (.284) – Chambers List
7mm TCU
7-30 Waters
7mm IHMSA (Encore Only)
7-08 Remington (Encore Only)
7 SAW II (Encore Only)
7-08 Remington Ackley Improved (Encore Only)
7mm x 57 Mauser (Encore Only)
7mm x 57 Ackley Improved (Encore Only)
284 Winchester (Encore Only)
280 Remington (Encore Only)
280 Remington Ackley Improved (Encore Only)
7mm Remington Magnum (Encore Only)
7mm BR Remington (Encore Only)
7 x 64mm (Encore Only)
Twist Rates Available
1 – 9 (110gr-160gr)
1 – 8 (162gr +)
30 Cal (.308) – Chambers List
32-20 Winchester (.308 Bore)
30 Reece
300-221 ("Whisper")
30 Herrett
30-30 Ackley Improved
30 Badger
7.62 x 39mm (.308 Bore) (Encore or G2 Only)
30 BR (Encore Only)
30-40 Krag Ackley Improved (Encore Only)
308 Winchester (Encore Only)
300 H&H Magnum (Encore Only)
30-06 Ackley Improved (Encore Only)
7.62 x 54mm R (.308 Bore) (Encore Only)
30 Carbine
300 AAC Blackout
7.62 x 25mm Tokarev (.308 Bore)
30-30 Winchester
30-40 Krag
300 HAM'R
300 Savage (Encore Only)
307 Winchester (Encore Only)
.30 Whitetail (Encore Only)
30 T/C (Encore Only)
308 Winchester Ackley Improved (Encore Only)
30-06 Springfield (Encore Only)
300 Winchester Magnum (Encore Only)
Twist Rates Available
1 – 6 (Subsonic for very short barrels)
1 – 7 (Subsonic for shorter barrels)
1 – 8 (Subsonic or 220gr+)
1 – 10 (180gr – 215gr)
1 – 12 (115gr – 180gr)
.311 – Chambers List
32 H&R Magnum (.311 Bore)
327 Federal (.311 Bore)
7.62x25mm Tokarev (.311 Bore)
7.62x54mm R (.311 Bore) (Encore Only)
32 S&W Long
32-20 Winchester (.311 Bore)
7.62x39mm (.311 Bore) (Encore and G2 Only)
303 British (Encore Only)
Twist Rates Available
1 – 10
1 – 5
8mm (.323) – Chambers List
7.92 x 33mm Kurz (Encore and G2 Only)
8mm-06 (Encore Only)
8mm Mauser (Encore Only)
8mm Remington Magnum (Encore Only)
Twist Rates Available
1 – 12
338 Cal – Chambers List
338x30-30
338 ARC (Encore or G2 Only)
338 Federal (Encore Only)
338 Winchester Magnum (Encore Only)
338-06 Ackley Improved (Encore Only)
338-221 Remington
338 Marlin Express (Encore Only)
338-08 Ackley Improved (Encore Only)
338-06 (Encore Only)
8.6 Blackout (Encore Only)
Twist Rates Available
1 – 3
1 – 6
1 – 10
9mm (.355) – Chambers List
9mm Luger
357 Sig
350 Legend
380 ACP
Twist Rates Available
1 – 10
1 – 16
357 Cal – Chambers List
38 Special
360 Dan Wesson
357 Herrett
35 Remington
360 Buckhammer
358 Hoosier (Encore Only)
35 Whelen (Encore Only)
264 Winchester Magnum (Encore Only)
357 Magnum
357 Maximum
35 x 30-30 Winchester
358 MGM IDC (Based Off 35 Rem 1.800″)
358 Winchester (Encore Only)
35 Whelen Ackley Improved (Encore Only)
356 Winchester (Encore Only)
358 WSSM (Encore Only)
Twist Rates Available
1 – 12
1 – 14
1 – 16
366 Cal – Chambers List
9.3 x 74mm R (Encore Only)
9.3 x 62mm (Encore Only)
Twist Rates Available
1 – 14
375 Cal – Chambers List
38-55 WCF
375-444 Marlin (Encore and G2 Only)
375 Raptor (Encore Only)
375 Winchester
375 Super Magnum
375 H&H Magnum (Encore Only)
Twist Rates Available
1 – 8
1 – 10
1 – 12
10mm/40 Cal (.400) – Chambers List
40 S&W
10mm Magnum
400 Legend
10mm Auto
38-40 Winchester
Twist Rates Available
1 – 16
410 Cal (.411) – Chambers List
41 Magnum
405 Winchester (Encore and G2 Only)
41 Great Lakes (Encore Only)
414 Super Magnum
Twist Rates Available
1 – 14
429 Cal – Chambers List
44-40 Winchester
44 Automag (44 AMP)
444 Marlin (Encore and G2 Only)
44 Remington Magnum
445 Super Magnum
44 Special - 1.160" Trim Length
Twist Rates Available
1 – 20
451 Cal – Chambers List
45-410 (Rifled Barrel)
45 Win Mag
450 Bushmaster (Encore Only)
460 S&W Magnum (Encore Only)
45 ACP
45 Long Colt
454 Casull (Encore Only)
45 Raptor (Encore Only)
Twist Rates Available
1 – 16
1 – 20
458 Cal – Chambers List
45-70 1.800"
450 Marlin (Encore Only)
458 Winchester Magnum (Encore Only)
45-120 Sharps (Encore Only)
45-70 US Government
450 Alaskan (Encore Only)
458 Lott (Encore Only)
45 Basic (Encore Only)
Twist Rates Available
1 – 10
1 – 20
Custom Encore and Contender and Contender G2 Barrels
Don't see the chamber you need? Give us a call and we'll work with you to build exactly what you want!