True-Flite NZ · Contour explorer
Find your profile.
See the difference.
The profile shapes the whole build. Compare True-Flite sporter and target barrel contours, view the outline and check reference weight estimates. Use the interactive guide to build a shortlist, then talk to us about your rifle.
Select a profile to update the preview.
Sporter / Lightweight
Lightweight
The lightest published sporter profile.
Calculated weight · 416R stainless
At 26″: 1.21 kg2.7 lb. More lengths in the weight table below.
Calculated for an unfluted 416R blank with a .30-calibre bore. Chambering, threading and fluting reduce the finished weight.
Sporter / No. 1
No. 1
A slim profile in the sporter range.
Calculated weight · 416R stainless
At 26″: 1.34 kg3.0 lb. More lengths in the weight table below.
Calculated for an unfluted 416R blank with a .30-calibre bore. Chambering, threading and fluting reduce the finished weight.
Sporter / No. 2
No. 2
A step up in profile from No. 1.
Calculated weight · 416R stainless
At 26″: 1.50 kg3.3 lb. More lengths in the weight table below.
Calculated for an unfluted 416R blank with a .30-calibre bore. Chambering, threading and fluting reduce the finished weight.
Sporter / No. 3
No. 3
A middle profile in the sporter lineup.
Calculated weight · 416R stainless
At 26″: 1.60 kg3.5 lb. More lengths in the weight table below.
Calculated for an unfluted 416R blank with a .30-calibre bore. Chambering, threading and fluting reduce the finished weight.
Sporter / No. 4
No. 4
A fuller sporter profile than No. 3.
Calculated weight · 416R stainless
At 26″: 1.79 kg3.9 lb. More lengths in the weight table below.
Calculated for an unfluted 416R blank with a .30-calibre bore. Chambering, threading and fluting reduce the finished weight.
Sporter / No. 5
No. 5
A heavier profile in the sporter range.
Calculated weight · 416R stainless
At 26″: 1.96 kg4.3 lb. More lengths in the weight table below.
Calculated for an unfluted 416R blank with a .30-calibre bore. Chambering, threading and fluting reduce the finished weight.
Sporter / Varmint
Varmint
The heaviest profile in the published sporter chart.
Calculated weight · 416R stainless
At 26″: 2.40 kg5.3 lb. More lengths in the weight table below.
Calculated for an unfluted 416R blank with a .30-calibre bore. Chambering, threading and fluting reduce the finished weight.
Target / NRA / Palma
NRA / Palma
The published NRA / Palma target profile.
Calculated weight · 416R stainless
At 26″: 2.17 kg4.8 lb. More lengths in the weight table below.
Calculated for an unfluted 416R blank with a .30-calibre bore. Chambering, threading and fluting reduce the finished weight.
Target / Match Rifle
Match Rifle
The published Match Rifle target profile.
Calculated weight · 416R stainless
At 26″: 2.21 kg4.9 lb. More lengths in the weight table below.
Calculated for an unfluted 416R blank with a .30-calibre bore. Chambering, threading and fluting reduce the finished weight.
Target / Heavy Palma
Heavy Palma
A fuller target profile than NRA / Palma.
Calculated weight · 416R stainless
At 26″: 2.51 kg5.5 lb. More lengths in the weight table below.
Calculated for an unfluted 416R blank with a .30-calibre bore. Chambering, threading and fluting reduce the finished weight.
Target / F-Class
F-Class
A heavier profile in the target range.
Calculated weight · 416R stainless
At 26″: 2.79 kg6.1 lb. More lengths in the weight table below.
Calculated for an unfluted 416R blank with a .30-calibre bore. Chambering, threading and fluting reduce the finished weight.
Target / Light Str/Taper
Light Str/Taper
Straight taper from the knox to the muzzle.
Calculated weight · 416R stainless
At 26″: 2.85 kg6.3 lb. More lengths in the weight table below.
Calculated for an unfluted 416R blank with a .30-calibre bore, assuming a straight taper from the end of the knox to the muzzle. Chambering, threading and fluting reduce the finished weight.
Target / Heavy Str/Taper
Heavy Str/Taper
Straight taper from the knox to the muzzle.
Calculated weight · 416R stainless
At 26″: 3.12 kg6.9 lb. More lengths in the weight table below.
Calculated for an unfluted 416R blank with a .30-calibre bore, assuming a straight taper from the end of the knox to the muzzle. Chambering, threading and fluting reduce the finished weight.
Target / Benchrest
Benchrest
The published chart calls for a profile specified for the weight class.
No silhouette or weight inferred from incomplete data.
Estimated reference weight
The published chart does not contain enough information to support a weight estimate. A measured or confirmed reference weight can be added later.
Target / 50 Calibre
50 Calibre
The published chart does not give enough profile data for a weight estimate.
No silhouette or weight inferred from incomplete data.
Estimated reference weight
The published chart does not contain enough information to support a weight estimate. A measured or confirmed reference weight can be added later.
The range at a glance.
Calculated weights at the same 34-inch length, unfluted 416R stainless with a .30-calibre bore. Select a name to inspect its profile.
Calculated weights · 416R stainless
Weight by finished length.
Every profile calculated at each finished length, in kilogramspounds. Each contour is made to your finished length, with the muzzle diameter E held, so the taper changes with length. Unfluted blank, .30-calibre bore, density 7.75 g/cm³.
| Contour | 20″508 mm | 22″559 mm | 24″610 mm | 26″660 mm | 28″711 mm | 30″762 mm | 32″813 mm | 34″864 mm |
|---|---|---|---|---|---|---|---|---|
| 1.022.3 | 1.092.4 | 1.152.5 | 1.212.7 | 1.282.8 | 1.342.9 | 1.403.1 | 1.463.2 | |
| 1.122.5 | 1.192.6 | 1.272.8 | 1.343.0 | 1.423.1 | 1.493.3 | 1.573.5 | 1.643.6 | |
| 1.262.8 | 1.342.9 | 1.423.1 | 1.503.3 | 1.583.5 | 1.663.7 | 1.753.8 | 1.834.0 | |
| 1.332.9 | 1.423.1 | 1.513.3 | 1.603.5 | 1.693.7 | 1.783.9 | 1.874.1 | 1.964.3 | |
| 1.473.2 | 1.583.5 | 1.683.7 | 1.793.9 | 1.894.2 | 2.004.4 | 2.104.6 | 2.214.9 | |
| 1.603.5 | 1.723.8 | 1.844.1 | 1.964.3 | 2.094.6 | 2.214.9 | 2.335.1 | 2.455.4 | |
| 1.934.3 | 2.094.6 | 2.255.0 | 2.405.3 | 2.565.6 | 2.726.0 | 2.876.3 | 3.036.7 | |
| 1.783.9 | 1.914.2 | 2.044.5 | 2.174.8 | 2.305.1 | 2.435.4 | 2.575.7 | 2.705.9 | |
| 1.804.0 | 1.944.3 | 2.074.6 | 2.214.9 | 2.345.2 | 2.485.5 | 2.615.8 | 2.756.1 | |
| 2.044.5 | 2.194.8 | 2.355.2 | 2.515.5 | 2.675.9 | 2.836.2 | 2.996.6 | 3.146.9 | |
| 2.244.9 | 2.435.3 | 2.615.7 | 2.796.1 | 2.976.6 | 3.157.0 | 3.337.4 | 3.527.8 | |
| 2.255.0 | 2.455.4 | 2.655.8 | 2.856.3 | 3.056.7 | 3.257.2 | 3.457.6 | 3.658.1 | |
| 2.465.4 | 2.685.9 | 2.906.4 | 3.126.9 | 3.347.4 | 3.567.8 | 3.788.3 | 4.008.8 |
Scroll sideways on a small screen. Fluting and Aerocell remove further weight from these figures.
Calculated, not weighed. Weights are calculated from each published contour for an unfluted 416R stainless blank with a .30-calibre bore, at a density of 7.75 g/cm³ (0.280 lb/in³). Contours are drawn to scale in true proportion.
Your finished barrel may differ with the actual profile, length, calibre, chamber, fitting and finish. These estimates are not a validated tolerance, fit assessment or competition weight certification.
Updated catalogue · up to 34 inches
Published contour dimensions.
All profiles are listed at up to 34 inches overall length. The other A–E values follow the original sporter and target charts, with metric equivalents. A dash means no value is specified.
Sporter contours
Select a contour name to update the preview. Scroll sideways on a small screen.
| Contour | AKnox diameter | BKnox length | CTaper-start diameter | DOverall length | EMuzzle diameter |
|---|---|---|---|---|---|
| Up to 1.20″Up to 30.5 mm | Up to 2.5″Up to 63.5 mm | 0.72″18.3 mm | Up to 34″Up to 863.6 mm | 0.55″14.0 mm | |
| Up to 1.20″Up to 30.5 mm | Up to 2.5″Up to 63.5 mm | 0.76″19.3 mm | Up to 34″Up to 863.6 mm | 0.60″15.2 mm | |
| Up to 1.23″Up to 31.2 mm | Up to 3″Up to 76.2 mm | 0.79″20.1 mm | Up to 34″Up to 863.6 mm | 0.62″15.7 mm | |
| Up to 1.23″Up to 31.2 mm | Up to 3″Up to 76.2 mm | 0.82″20.8 mm | Up to 34″Up to 863.6 mm | 0.65″16.5 mm | |
| Up to 1.23″Up to 31.2 mm | Up to 3″Up to 76.2 mm | 0.87″22.1 mm | Up to 34″Up to 863.6 mm | 0.70″17.8 mm | |
| Up to 1.23″Up to 31.2 mm | Up to 3″Up to 76.2 mm | 0.92″23.4 mm | Up to 34″Up to 863.6 mm | 0.75″19.1 mm | |
| Up to 1.23″Up to 31.2 mm | Up to 4″Up to 101.6 mm | 1.00″25.4 mm | Up to 34″Up to 863.6 mm | 0.87″22.1 mm |
Target contours
Select a contour name to update the preview. Scroll sideways on a small screen.
| Contour | AKnox diameter | BKnox length | CTaper-start diameter | DOverall length | EMuzzle diameter |
|---|---|---|---|---|---|
| 1.23″31.2 mm | Up to 4″Up to 101.6 mm | 0.90″22.9 mm | Up to 34″Up to 863.6 mm | 0.83″21.1 mm | |
| 1.23″31.2 mm | Up to 4″Up to 101.6 mm | 0.91″23.1 mm | Up to 34″Up to 863.6 mm | 0.84″21.3 mm | |
| 1.23″31.2 mm | Up to 5″Up to 127.0 mm | 0.98″24.9 mm | Up to 34″Up to 863.6 mm | 0.90″22.9 mm | |
| 1.23″31.2 mm | Up to 6″Up to 152.4 mm | 1.05″26.7 mm | Up to 34″Up to 863.6 mm | 0.95″24.1 mm | |
| 1.23″31.2 mm | Up to 6″Up to 152.4 mm | — | Up to 34″Up to 863.6 mm | 0.85″21.6 mm | |
| 1.23″31.2 mm | Up to 8″Up to 203.2 mm | — | Up to 34″Up to 863.6 mm | 0.95″24.1 mm | |
| Please specify for weight class | Up to 34″Up to 863.6 mm | — | |||
| 1.75″44.5 mm | Up to 10″Up to 254.0 mm | — | Up to 34″Up to 863.6 mm | — | |
Minor variations may apply. C is a diameter, not a measured location along the barrel. Radius dimensions and exact transition positions are not specified in the original charts. The illustrated previews remain separate from this reference data.
Explore the published range.
All profiles & reference weights
| Contour | Family | Reference length | Rough weight range |
|---|---|---|---|
| Sporter | Up to 34″ | 1.3–1.5 kg2.9–3.3 lb | |
| Sporter | Up to 34″ | 1.5–1.7 kg3.3–3.7 lb | |
| Sporter | Up to 34″ | 1.6–1.9 kg3.5–4.2 lb | |
| Sporter | Up to 34″ | 1.8–2.0 kg4.0–4.4 lb | |
| Sporter | Up to 34″ | 2.0–2.2 kg4.4–4.9 lb | |
| Sporter | Up to 34″ | 2.3–2.5 kg5.1–5.5 lb | |
| Sporter | Up to 34″ | 2.9–3.0 kg6.4–6.6 lb | |
| Target | Up to 34″ | 2.5–2.7 kg5.5–6.0 lb | |
| Target | Up to 34″ | 2.5–2.7 kg5.5–6.0 lb | |
| Target | Up to 34″ | 3.0–3.1 kg6.6–6.8 lb | |
| Target | Up to 34″ | 3.3–3.5 kg7.3–7.7 lb | |
| Target | Up to 34″ | Not estimatedNot estimated | |
| Target | Up to 34″ | Not estimatedNot estimated | |
| Target | Up to 34″ | Not estimatedNot estimated | |
| Target | Up to 34″ | Not estimatedNot estimated |
Where the Knox, radius and taper sit
The original drawing identifies B as the straight Knox length. The curved radius follows that section, with C marking the diameter where the long taper begins. The drawing does not specify the radius or the length of that transition. The interactive previews are illustrative. The A–E diagram above the dimension tables shows how to read the catalogue labels; it is also not to scale.
How were the weight estimates prepared?
Each profile is built from the published dimensions: the maximum knox diameter A over knox length B, a smooth shoulder down to the taper-start diameter C, then a straight taper to the muzzle diameter E at the finished length. Shoulder lengths are 63.5 mm up to No. 3, 76.2 mm for No. 4, No. 5 and Varmint, and 101.6 mm for the target contours. Straight-taper profiles run straight from the end of the knox to the muzzle.
The steel volume is integrated along the barrel, the .30-calibre bore is removed, and the result is multiplied by 416R density, 7.75 g/cm³. Chambering, threads, crowning and fluting are not modelled; they all reduce the finished weight. Benchrest and 50 Calibre profiles are made to order, so no weight is shown.
Are these previews scale drawings?
Yes. Each contour is drawn in true proportion at 34 inches, with diameter and length on the same scale, and labelled with its A, C and E diameters and segment lengths in millimetres. The shoulder curve is our standard production transition.