My Account (Sign in)
Your basket is empty.
0
Basket
contact us by phone Help and contact
Free standard delivery over £199
100-day return policy
My Account (Sign in)
Shopping list
Your basket is empty. (0)
Basket
Newsletter Newsletter
Sale

Over 300,000 customers - we say thank you!

4.93/5 "Very good" (1400+ reviews)

40,000+ products for hunting and shooting sports

Home Gunsmith Tools Barrel Tools Reamers Shotgun Reamers CHADWICK & TREFETHEN GILCHRIST PRECISION CHOKE REAMER Support
Sierra Sale!
Achieve precise choke adjustments with the GILCHRIST Precision Choke Reamer! 🔧 Perfect for 20/16GA, fine-tune your shotgun patterns effortlessly.

CHADWICK & TREFETHEN GILCHRIST PRECISION CHOKE REAMER - CHADWICK & TREFETHEN 20/16GA. "C" REAMER

170100103

Variations:

Achieve precise choke adjustments with the GILCHRIST Precision Choke Reamer! 🔧 Perfect for 20/16GA, fine-tune your shotgun patterns effortlessly.
CHADWICK & TREFETHEN 20/16GA. "C" REAMER
Cartridge: 20 Gauge, 16 Gauge Product no.: 170100103
Not available
164.9 GBP 0 £164.90 *
Ask question
Enhance your shotgun's performance with the GILCHRIST Precision Choke Reamer! 🎯 Achieve perfect choke size for better patterns.
CHADWICK & TREFETHEN GILCHRIST HANDLE
84.9 GBP 1 £84.90 *
Product no.: 170100000
In stock
84.9 GBP 1 £84.90 *
Ask question
Enhance your shotgun's performance with the GILCHRIST Precision Choke Reamer! 🎯 Perfect for fine-tuning choke sizes and improving patterns.
CHADWICK & TREFETHEN 16/12GA. "D" REAMER
169.9 GBP 0 £169.90 *
Cartridge: 12 Gauge, 16 Gauge Product no.: 170100104
Backorderable
169.9 GBP 0 £169.90 *
Ask question
Upgrade your shotgun with the GILCHRIST Precision Choke Reamer! 🔧 Perfect for 10ga. 'E' reaming. Get precise performance with Chadwick & Trefethen.
CHADWICK & TREFETHEN 10GA. "E" REAMER
Cartridge: 10 Gauge Product no.: 170100105
Not available
169.9 GBP 0 £169.90 *
Ask question
84.9 169.9 4 GBP

Variations:

Achieve precise choke adjustments with the GILCHRIST Precision Choke Reamer! 🔧 Perfect for 20/16GA, fine-tune your shotgun patterns effortlessly.
CHADWICK & TREFETHEN 20/16GA. "C" REAMER
Cartridge: 20 Gauge, 16 Gauge Product no.: 170100103
Not available
164.9 GBP 0 £164.90 *
Ask question
Enhance your shotgun's performance with the GILCHRIST Precision Choke Reamer! 🎯 Achieve perfect choke size for better patterns.
CHADWICK & TREFETHEN GILCHRIST HANDLE
84.9 GBP 1 £84.90 *
Product no.: 170100000
In stock
84.9 GBP 1 £84.90 *
Ask question
Enhance your shotgun's performance with the GILCHRIST Precision Choke Reamer! 🎯 Perfect for fine-tuning choke sizes and improving patterns.
CHADWICK & TREFETHEN 16/12GA. "D" REAMER
169.9 GBP 0 £169.90 *
Cartridge: 12 Gauge, 16 Gauge Product no.: 170100104
Backorderable
169.9 GBP 0 £169.90 *
Ask question
Upgrade your shotgun with the GILCHRIST Precision Choke Reamer! 🔧 Perfect for 10ga. 'E' reaming. Get precise performance with Chadwick & Trefethen.
CHADWICK & TREFETHEN 10GA. "E" REAMER
Cartridge: 10 Gauge Product no.: 170100105
Not available
169.9 GBP 0 £169.90 *
Ask question

Description:

Aligns Reamer Concentric To The Bore For Accurate Choke Adjusting Or Removal
Enters through the breech and pilots off the bore for precise cutter to bore alignment. Expandable, angle blade reamer fine tunes choke size to improve patterns or removes choke prior to screw-in choke tube installation. Requires two Clymer Choke Tooling Bushings to center the cutter in the bore. Requires purchase of the Gilchrist Handle and two of the proper Clymer bore bushings for use with any of the reamers.

SPECS: Steel. Handle 25-½" (65cm) long. Reamers 13" (33cm) long. Expansion range: 20gauge "C" .593"- .656". 12gauge "D" .656" - .718". "E" .718" - .781". Select correct diameter bushing for 12 and 20 gauge from Clymer chart listed elsewhere. Pilots not available for 10 and 16 gauge. Tight choked 12 gauge barrels may require the use of the "D" reamer before using the "E" reamer.

Top takeaways

  1. The GILCHRIST PRECISION CHOKE REAMER is designed for precise cutter to bore alignment and can fine-tune choke size or remove chokes for screw-in installations.
  2. It requires the Gilchrist Handle and two Clymer Choke Tooling Bushings for operation, which must be purchased separately.
  3. The reamer is suitable for 20 and 16 gauge cartridges and has an expansion range for 20 gauge "C" from .593" to .656".

Attributes

  • Cartridge: 20 Gauge,16 Gauge
  • Style: Expandable Choke
  • Delivery weight: 0.431kg

Item details

Made in USA

Customers reviews

Customer ratings (0)

0 / 5

Customers also bought

Alternative items

Oops! Something went wrong.

We encountered an error while loading this content. Please refresh the page to continue. If the issue persists, contact our customer support.

Site Navigation
Product Categories
Ordering
Customer Service

Welcome!

to Brownells UK, your destination for anything gun related. With our roots in a genuine passion for firearms, we bring you an unmatched selection of Gun Parts, Firearm Accessories, Gunsmithing Tools, Scopes & Red Dot Sights and Expert Knowledge.

Whether you're looking to maintain, repair, or upgrade, we've got what you need!

For Shooters, By Shooters
We share your enthusiasm and know exactly what you're looking for because we're part of the community.

Massive Selection
From the essentials to the unique, find everything under one roof.

Our blend of tradition and innovation
Shop with the convenience of modern technology, backed by a legacy of experience.

Browse our collection and discover why we're the trusted name in shooting sports & hunting.

Brownells Norge - Komplett utvalg av ladeutstyr, våpendeler, kuler, hylser, kikkerter, optikk og luftvåpen Brownells Österreich - Einer der größten Lieferanten für Waffenteile, Büchsenmacherzubehör & Schießsportzubehör Brownells Switzerland - Einer der größten Lieferanten für Waffenteile, Büchsenmacherzubehör & Schießsportzubehör Brownells Deutschland - Einer der größten Lieferanten für Waffenteile, Büchsenmacherzubehör & Schießsportzubehör Brownells France - Le plus grand fournisseur d'Accessoires pour le tir, Pièces détachées & Outils d'Armurier Brownells Iberica - El mayor proveedor de accesorios para el Tiro, Piezas y herramientas del armero. Brownells Sverige - Världens största leverantör av Vapendelar, Vapensmide Verktyg & Skyttetillbehör Brownells Suomi Brownells Italia - Il negozio del più grande rivenditore di componenti e accessori per armi da tiro, difesa e caccia Brownells Polska - Największy na świecie dostawca części broni, narzędzi rusznikarskich & akcesoriów strzeleckich Brownells Česko - Největší světový dodavatel součástí zbraní, střeleckého příslušenství a zbrojního nářadí
*
Prices inclusive of duty & VAT.

© 2025 Brownells UK
Part of the Brownells Europe Group

Logo Brownells
Classical viewClassical view Mobile viewMobile view
Back to top