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Reference Guides

Gun part nomenclature

Barrel Dimensional Reference

Buttplate Dimensional Reference

Flint Dimensional Reference

Front Sight Dimensional Reference

1945 - 1974
Year Code
1945 I
1946 II
1947 III
1948 IV
1949 V
1950 VI
1951 VII
1952 VIII
1953 IX
1954 X
1955 XI
1956 XII
1957 XIII
1958 XIV
1959 XV
1960 XVI
1961 XVII
1962 XVIII
1963 XIX
1964 XX
1965 XXI
1966 XXII
1967 XXIII
1968 XXIV
1969 XXV
1970 XXVI
1971 XXVII
1972 XXVIII
1973 XXIX
1974 XXX
1975 - 2003
Year Code
1975 AA
1976 AB
1977 AC
1978 AD
1979 AE
1980 AF
1981 AH
1982 AI
1983 AL
1984 AM
1985 AN
1986 AP
1987 AS
1988 AT
1989 AU
1990 AZ
1991 BA
1992 BB
1993 BC
1994 BD
1995 BF
1996 BH
1997 BI
1998 BL
1999 BM
2000 BN
2001 BP
2002 BS
2003 BT
2004 - 2032
Year Code
2004 BU
2005 BZ
2006 CA
2007 CB
2008 CC
2009 CD
2010 CF
2011 CH
2012 CI
2013 CL
2014 CM
2015 CN
2016 CP
2017 CS
2018 CT
2019 CU
2020 CZ
2021 DA
2022 DB
2023 DC
2024 DD
2025 DE
2026 DF
2027 DH
2028 DI
2029 DL
2030 DM
2031 DN
2032 DP

Nipple Dimensional Reference
Track's nipples - for the traditional purist hardened and tempered carbon steel, or 416 stainless steel:
Discard the factory made blued steel nipples supplied on imported replica guns, especially revolvers. They often have too much taper to secure the caps and prevent cap fragments from falling into the hammer notch, jamming your revolver. Our nipples fit CCI & RWS No. 11 standard caps correctly.
The values shown for the overall length, thread journal length, and diameter of the base are ideal values and may vary slightly due to machining tolerances. We have noted a wide variety of nipple threads and lengths used on imported rifles and percussion revolvers, especially on the early imports from the 1960's and 1970', even on the same model from the same maker.
We recommend confirming the thread, overall length, thread journal length, base diameter, and comparing the cone length. Cone length = overall length minus thread journal length. The cone length must be similar in length to the original nipple to assure good function especially in percussion revolvers.
* Variations exist on many early imported revolvers. Many pre-1980 revolvers will have relatively short 6-.75mm threaded nipples.

** Estimated weight of pure lead round ball.
Diameter Grains
.283 34
.300 41
.310 45
.311 45
.315 47
.319 49
.320 49
.323 51
.340 59
.343 61
.345 62
.350 65
.358 69
.360 70
.375 79
.380 83
.389 89
.395 93
.400 96
.410 104
.424 115
Diameter Grains
.429 119
.433 122
.437 126
.440 128
.445 133
.451 138
.454 141
.457 144
.465 151
.480 166
.490 177
.495 182
.498 186
.500 188
.509 198
.515 206
.520 212
.526 219
.530 224
.535 230
Diameter Grains
.543 241
.550 250
.562 267
.570 279
.575 286
.580 294
.595 317
.600 325
.610 342
.626 369
.648 409
.662 436
.672 457
.675 463
.678 469
.690 494
.715 550
.735 597
.750 635
.760 660

Rear Sight Dimensional Reference

Triggerguard Dimensional Reference

Wad manufacturer recommends using wads with the same diameter as the bore for Rocky Mountain brass, paper, and plastic.
Gauge Bore Diameter Wad Diameter
4ga. 1.070" 1.050"
5ga. .976" .995"
6ga. .919" .935"
7ga. .873" .888"
8ga. .835" .850"
9ga. .803" .815"
10ga. .775" .788"
11ga. .751" .762"
12ga. .729" .740"
13ga. .710" .720"
14ga. .693" .703"
15ga. .667" .677"
16ga. .662" .672"
17ga. .649" .659"
18ga. .637" .647"
19ga. .626" .636"
20ga. .615" .625"
24ga. .579" .589"
28ga. .550" .560"
410 .410" .412"
30cal. Rifle .310"
32cal. Rifle .320"
38cal. Pistol(.357") .360"
38cal. Rifle .360"
40cal. Rifle .412"
44cal. Pistol(.429") .430"
44cal. Rifle .450"
45cal. Pistol(.452"-.454") .455"
45cal. Rifle .460"
50cal. Rifle .510"
Track of the Wolf produced Parker Bros. marked shotshells require larger wads, refer to the filter or chart for recommended size.
Parker Bros. Brass "A" Card "C" Fiber Wad "B" Overshot card
8 gauge 7 gauge 7 gauge 7 gauge
10 gauge 9 gauge 9 gauge 9 gauge
12 gauge 11 gauge 11 gauge 11 gauge
20 gauge 19 gauge 19 gauge 19 gauge
MagTech brass require larger wads, refer filter or chart for the recommended size.
MagTech Brass "A" Card "C" Fiber Wad "B" Overshot card
12 gauge 11 gauge 11 gauge 10 gauge
16 gauge 14 gauge 14 gauge 13 gauge
20 gauge 18 gauge 18 gauge 17 gauge
24 gauge 20 gauge 20 gauge 19 gauge
28 gauge 24 gauge 24 gauge 24 gauge
410 gauge .430" diameter .430" diameter .450" diameter