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Home Reloading Case Preparation Neck Turning Turning & Expander Mandrels SINCLAIR INTERNATIONAL CARBIDE EXPANDER MANDRELS Support
Easter Sale up to 60%
Enhance your reloading precision with the Sinclair 20 Caliber Carbide Expander Mandrel. 🛠️ Achieve perfect neck tension and concentricity!

SINCLAIR INTERNATIONAL CARBIDE EXPANDER MANDRELS - SINCLAIR INTERNATIONAL 20 CALIBER (0.203") CARBIDE EXPANDER MANDREL

749014409

Variations:

-10 %
Enhance your reloading precision with the Sinclair 20 Caliber Carbide Expander Mandrel. 🛠️ Achieve perfect neck tension and concentricity!
SINCLAIR INTERNATIONAL 20 CALIBER (0.203") CARBIDE EXPANDER MANDREL
49.4 GBP 2 £49.40 * £54.90
Caliber: 20 Caliber Diameter (in): 0.203 Product no.: 749014409
In stock
49.4 GBP 2 £49.40 * £54.90
Ask question
-10 %
Enhance your reloading with the Sinclair Carbide Expander Mandrel for 17 Caliber 🔧. Achieve perfect neck tension and concentricity!
SINCLAIR INTERNATIONAL 17 CALIBER (0.171") CARBIDE EXPANDER MANDREL
49.4 GBP 1 £49.40 * £54.90
Caliber: 17 Caliber Diameter (in): 0.171 Product no.: 749014408
In stock
49.4 GBP 1 £49.40 * £54.90
Ask question
-10 %
Enhance your reloads with Sinclair's 22 Caliber Carbide Expander Mandrel. Achieve perfect neck tension and concentricity! 🔧
SINCLAIR INTERNATIONAL 22 CALIBER (0.223") CARBIDE EXPANDER MANDREL
49.4 GBP 23 £49.40 * £54.90
Caliber: 22 Caliber Diameter (in): 0.223 Product no.: 749014457
In stock
49.4 GBP 23 £49.40 * £54.90
Ask question
-24 %
Enhance your reloading with Sinclair's 25 Caliber Carbide Expander Mandrel. 🔧 Achieve precise neck tension and perfect fit for optimal performance!
SINCLAIR INTERNATIONAL 25 CALIBER (0.256") CARBIDE EXPANDER MANDREL
41.7 GBP 4 £41.70 * £54.90
Caliber: 25 Caliber Diameter (in): 0.256 Product no.: 749014466
In stock
41.7 GBP 4 £41.70 * £54.90
Ask question
-10 %
Enhance your reloads with Sinclair's 30 Caliber Carbide Expander Mandrel. Precision-crafted for perfect neck tension and concentricity. 🔧
SINCLAIR INTERNATIONAL 30 CALIBER (0.307") CARBIDE EXPANDER MANDREL
49.4 GBP 39 £49.40 * £54.90
Caliber: 30 Caliber Diameter (in): 0.307 Product no.: 749014470
In stock
49.4 GBP 39 £49.40 * £54.90
Ask question
-10 %
Achieve precision with Sinclair's 338 Caliber Carbide Expander Mandrel. Perfect for neck turning and bullet seating. 🔧 Enhance your hand loading!
SINCLAIR INTERNATIONAL 338 CALIBER (0.337") CARBIDE EXPANDER MANDREL
49.4 GBP 28 £49.40 * £54.90
Caliber: 338 Caliber Diameter (in): 0.337 Product no.: 749014472
In stock
49.4 GBP 28 £49.40 * £54.90
Ask question
-10 %
Enhance your reloading with the Sinclair 6mm Carbide Expander Mandrel. Precision-engineered for perfect neck tension and fit! 🔧
SINCLAIR INTERNATIONAL 6MM (0.242") CARBIDE EXPANDER MANDREL
49.4 GBP 30 £49.40 * £54.90
Caliber: 243 Caliber, 6mm Diameter (in): 0.242 Product no.: 749014465
In stock
49.4 GBP 30 £49.40 * £54.90
Ask question
-10 %
Enhance your reloading precision with the 7mm Carbide Expander Mandrel from Sinclair International. Perfect for neck turning! 🔧
SINCLAIR INTERNATIONAL 7MM (0.283") CARBIDE EXPANDER MANDREL
49.4 GBP 21 £49.40 * £54.90
Caliber: 284 Caliber, 7mm Diameter (in): 0.283 Product no.: 749014469
In stock
49.4 GBP 21 £49.40 * £54.90
Ask question
-24 %
Enhance your reloading precision with the 8mm Sinclair Carbide Expander Mandrel. 🛠️ Perfect for neck turning and bullet seating!
SINCLAIR INTERNATIONAL 8MM (0.322") CARBIDE EXPANDER MANDREL
41.7 GBP 3 £41.70 * £54.90
Caliber: 8mm, 32 Caliber Diameter (in): 0.322 Product no.: 749014471
In stock
41.7 GBP 3 £41.70 * £54.90
Ask question
-10 %
Enhance your reloading with the 6.5mm Carbide Expander Mandrel from Sinclair International. Precision-engineered for perfect neck tension. 🔧
SINCLAIR INTERNATIONAL 6.5MM (0.263") CARBIDE EXPANDER MANDREL
49.4 GBP 108 £49.40 * £54.90
Caliber: 6.5mm, 264 Caliber Diameter (in): 0.263 Product no.: 749014467
In stock
49.4 GBP 108 £49.40 * £54.90
Ask question
-10 %
Enhance your reloading with the Sinclair Carbide Expander Mandrel for 270 Caliber. Precision-engineered for perfect neck tension! 🔧
SINCLAIR INTERNATIONAL 270 CALIBER (0.276") CARBIDE EXPANDER MANDREL
49.4 GBP 3 £49.40 * £54.90
Caliber: 270 Caliber, 6.8mm Diameter (in): 0.276 Product no.: 749014468
In stock
49.4 GBP 3 £49.40 * £54.90
Ask question
54.9 54.9 11 GBP
Sale
49.4 GBP £49.40 £54.90

Prices inclusive of duty & VAT.

Product no.: 749014409

Sinclair Carbide Neck Expander Mandrels are ground from solid carbide stock, which yields closer tolerances and more lubricity. Carbide is also better at resisting galling which can leave behind material and scratch the inside of your necks. The shape, finish, and size are the result of years of use and experimentation by many hand loaders. Sinclair expander mandrels are made .001" smaller than bullet diameter. Using an expander mandrel prior to neck turning sizes the case to fit the neck turning mandrels perfectly, or use prior to bullet seating to get more concentric necks and perfect neck tension. All Sinclair Mandrels are designed for use with the Sinclair Expander Die and all Sinclair Neck Turning Tools.
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Variations:

-10 %
Enhance your reloading precision with the Sinclair 20 Caliber Carbide Expander Mandrel. 🛠️ Achieve perfect neck tension and concentricity!
SINCLAIR INTERNATIONAL 20 CALIBER (0.203") CARBIDE EXPANDER MANDREL
49.4 GBP 2 £49.40 * £54.90
Caliber: 20 Caliber Diameter (in): 0.203 Product no.: 749014409
In stock
49.4 GBP 2 £49.40 * £54.90
Ask question
-10 %
Enhance your reloading with the Sinclair Carbide Expander Mandrel for 17 Caliber 🔧. Achieve perfect neck tension and concentricity!
SINCLAIR INTERNATIONAL 17 CALIBER (0.171") CARBIDE EXPANDER MANDREL
49.4 GBP 1 £49.40 * £54.90
Caliber: 17 Caliber Diameter (in): 0.171 Product no.: 749014408
In stock
49.4 GBP 1 £49.40 * £54.90
Ask question
-10 %
Enhance your reloads with Sinclair's 22 Caliber Carbide Expander Mandrel. Achieve perfect neck tension and concentricity! 🔧
SINCLAIR INTERNATIONAL 22 CALIBER (0.223") CARBIDE EXPANDER MANDREL
49.4 GBP 23 £49.40 * £54.90
Caliber: 22 Caliber Diameter (in): 0.223 Product no.: 749014457
In stock
49.4 GBP 23 £49.40 * £54.90
Ask question
-24 %
Enhance your reloading with Sinclair's 25 Caliber Carbide Expander Mandrel. 🔧 Achieve precise neck tension and perfect fit for optimal performance!
SINCLAIR INTERNATIONAL 25 CALIBER (0.256") CARBIDE EXPANDER MANDREL
41.7 GBP 4 £41.70 * £54.90
Caliber: 25 Caliber Diameter (in): 0.256 Product no.: 749014466
In stock
41.7 GBP 4 £41.70 * £54.90
Ask question
-10 %
Enhance your reloads with Sinclair's 30 Caliber Carbide Expander Mandrel. Precision-crafted for perfect neck tension and concentricity. 🔧
SINCLAIR INTERNATIONAL 30 CALIBER (0.307") CARBIDE EXPANDER MANDREL
49.4 GBP 39 £49.40 * £54.90
Caliber: 30 Caliber Diameter (in): 0.307 Product no.: 749014470
In stock
49.4 GBP 39 £49.40 * £54.90
Ask question
-10 %
Achieve precision with Sinclair's 338 Caliber Carbide Expander Mandrel. Perfect for neck turning and bullet seating. 🔧 Enhance your hand loading!
SINCLAIR INTERNATIONAL 338 CALIBER (0.337") CARBIDE EXPANDER MANDREL
49.4 GBP 28 £49.40 * £54.90
Caliber: 338 Caliber Diameter (in): 0.337 Product no.: 749014472
In stock
49.4 GBP 28 £49.40 * £54.90
Ask question
-10 %
Enhance your reloading with the Sinclair 6mm Carbide Expander Mandrel. Precision-engineered for perfect neck tension and fit! 🔧
SINCLAIR INTERNATIONAL 6MM (0.242") CARBIDE EXPANDER MANDREL
49.4 GBP 30 £49.40 * £54.90
Caliber: 243 Caliber, 6mm Diameter (in): 0.242 Product no.: 749014465
In stock
49.4 GBP 30 £49.40 * £54.90
Ask question
-10 %
Enhance your reloading precision with the 7mm Carbide Expander Mandrel from Sinclair International. Perfect for neck turning! 🔧
SINCLAIR INTERNATIONAL 7MM (0.283") CARBIDE EXPANDER MANDREL
49.4 GBP 21 £49.40 * £54.90
Caliber: 284 Caliber, 7mm Diameter (in): 0.283 Product no.: 749014469
In stock
49.4 GBP 21 £49.40 * £54.90
Ask question
-24 %
Enhance your reloading precision with the 8mm Sinclair Carbide Expander Mandrel. 🛠️ Perfect for neck turning and bullet seating!
SINCLAIR INTERNATIONAL 8MM (0.322") CARBIDE EXPANDER MANDREL
41.7 GBP 3 £41.70 * £54.90
Caliber: 8mm, 32 Caliber Diameter (in): 0.322 Product no.: 749014471
In stock
41.7 GBP 3 £41.70 * £54.90
Ask question
-10 %
Enhance your reloading with the 6.5mm Carbide Expander Mandrel from Sinclair International. Precision-engineered for perfect neck tension. 🔧
SINCLAIR INTERNATIONAL 6.5MM (0.263") CARBIDE EXPANDER MANDREL
49.4 GBP 108 £49.40 * £54.90
Caliber: 6.5mm, 264 Caliber Diameter (in): 0.263 Product no.: 749014467
In stock
49.4 GBP 108 £49.40 * £54.90
Ask question
-10 %
Enhance your reloading with the Sinclair Carbide Expander Mandrel for 270 Caliber. Precision-engineered for perfect neck tension! 🔧
SINCLAIR INTERNATIONAL 270 CALIBER (0.276") CARBIDE EXPANDER MANDREL
49.4 GBP 3 £49.40 * £54.90
Caliber: 270 Caliber, 6.8mm Diameter (in): 0.276 Product no.: 749014468
In stock
49.4 GBP 3 £49.40 * £54.90
Ask question

Description:

Yields Closer Tolerances and More Lubricity
Sinclair Carbide Neck Expander Mandrels are ground from solid carbide stock, which yields closer tolerances and more lubricity. Carbide is also better at resisting galling which can leave behind material and scratch the inside of your necks. The shape, finish, and size are the result of years of use and experimentation by many hand loaders. Sinclair expander mandrels are made .001" smaller than bullet diameter. Using an expander mandrel prior to neck turning sizes the case to fit the neck turning mandrels perfectly, or use prior to bullet seating to get more concentric necks and perfect neck tension. All Sinclair Mandrels are designed for use with the Sinclair Expander Die and all Sinclair Neck Turning Tools.

Top takeaways

  1. Sinclair Carbide Neck Expander Mandrels are made from solid carbide for precision and lubricity, reducing galling and material transfer.
  2. The mandrels are designed .001" smaller than bullet diameter to ensure a perfect fit for neck turning or improved bullet seating.
  3. These mandrels are compatible with the Sinclair Expander Die and all Sinclair Neck Turning Tools, enhancing concentricity and neck tension.

Attributes

  • Caliber: 20 Caliber
  • Diameter (in): 0.203
  • Delivery weight: 0.028kg
  • Shipping height: 13mm
  • Shipping width: 13mm
  • Shipping length: 51mm

Item details

Made in USA

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