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Home Reloading Measuring Tools Bullet Seating Depth Tools SINCLAIR INTERNATIONAL SINCLAIR BULLET SEATING DEPTH TOOL Support
Achieve precision with the SINCLAIR Bullet Seating Depth Tool! 🎯 Perfect for handloaders seeking accuracy in rifles. Get yours today!

SINCLAIR INTERNATIONAL SINCLAIR BULLET SEATING DEPTH TOOL - SINCLAIR INTERNATIONAL 0.675" BULLET SEATING DEPTH GUIDE

749001230

Variations:

Achieve precision with the SINCLAIR Bullet Seating Depth Tool! 🎯 Perfect for handloaders seeking accuracy in rifles. Get yours today!
SINCLAIR INTERNATIONAL 0.675" BULLET SEATING DEPTH GUIDE
18.9 GBP 0 £18.90 *
Reordered
Action Fit: Kimber 8400, Sako AIII, Sako AIV, Sako L61, Tikka, Weatherby Vanguard, Howa 1500 Diameter (in): 0.675'' Product no.: 749001230
Reordered
18.9 GBP 0 £18.90 *
Ask question
Achieve precision with the SINCLAIR Bullet Seating Depth Tool! 🎯 Perfect for handloaders seeking accuracy in rifles. Get yours today!
SINCLAIR INTERNATIONAL 0.785" BULLET SEATING DEPTH GUIDE
12.9 GBP 15 £12.90 *
In stock
Action Fit: Sig Sauer Diameter (in): 0.785'' Product no.: 749001231
In stock
12.9 GBP 15 £12.90 *
Ask question
Achieve precision with the SINCLAIR Bullet Seating Depth Tool! 🎯 Perfect for handloaders to ensure accuracy in your rifles.
SINCLAIR INTERNATIONAL 0.870" BULLET SEATING DEPTH GUIDE
13.9 GBP 24 £13.90 *
In stock
Action Fit: BBR, Hall, Millennium, RPA Diameter (in): 0.870'' Product no.: 749001233
In stock
13.9 GBP 24 £13.90 *
Ask question
-16 %
Achieve precision with the SINCLAIR Bullet Seating Depth Tool! 🔧 Perfect for handloaders seeking accuracy in rifles. Get yours today!
SINCLAIR INTERNATIONAL BULLET SEATING DEPTH GAUGE WITH STANDARD GUIDE
41.9 GBP 7 £41.90 * £49.90
In stock
Product no.: 749004650
In stock
41.9 GBP 7 £41.90 * £49.90
Ask question
Optimize your AR-308 with the SINCLAIR Bullet Seating Depth Tool. 📏 Perfect fit for AR-10, ensuring precision in every shot!
SINCLAIR INTERNATIONAL AR-308 BULLET SEATING DEPTH GUIDE
25.9 GBP 2 £25.90 *
In stock
Action Fit: AR-10 Product no.: 749008962
In stock
25.9 GBP 2 £25.90 *
Ask question
-14 %
Achieve unmatched accuracy with the SINCLAIR Bullet Seating Depth Tool! 🔧 Perfect for AR-15 and other rifles, ensuring precise measurements every time.
SINCLAIR INTERNATIONAL AR-15 BULLET SEATING DEPTH GUIDE
18.9 GBP 1 £18.90 * £21.90
In stock
Action Fit: AR-15 Product no.: 749008968
In stock
18.9 GBP 1 £18.90 * £21.90
Ask question
Achieve precision with the SINCLAIR Bullet Seating Depth Tool 🔧. Perfect for handloaders seeking accuracy in 17 to 22 caliber rifles!
SINCLAIR INTERNATIONAL 0.690" REPLACEMENT BULLET SEATING DEPTH GUIDE
17.9 GBP 5 £17.90 *
In stock
Product no.: 749000885
In stock
17.9 GBP 5 £17.90 *
Ask question
Achieve precision with the SINCLAIR Bullet Seating Depth Tool! 🎯 Perfect for handloaders using 17 to 22 caliber rifles for accurate measurements.
SINCLAIR INTERNATIONAL 0.590" BULLET SEATING DEPTH GUIDE
13.9 GBP 1 £13.90 *
In stock
Action Fit: CZ 527, Kimber 84M, Sako AII, Sako L579 Diameter (in): 0.590'' Product no.: 749001238
In stock
13.9 GBP 1 £13.90 *
Ask question
Achieve precision with the SINCLAIR Bullet Seating Depth Tool! 🔧 Perfect for handloaders, ensuring accurate measurements for your rifles.
SINCLAIR INTERNATIONAL 0.838" BULLET SEATING DEPTH GUIDE
17.9 GBP 0 £17.90 *
Not available
Action Fit: Kleingunther, Weatherby Mark V, Ruger Precision Rifle, Ruger American Diameter (in): 0.838'' Product no.: 749001235
Not available
17.9 GBP 0 £17.90 *
Ask question
Achieve precision with the SINCLAIR Bullet Seating Depth Tool! 🔧 Designed for accurate measurements in various rifles. Perfect for handloaders!
SINCLAIR INTERNATIONAL 0.825" BULLET SEATING DEPTH GUIDE
Not available
Action Fit: Steyr SBS, Steyr Scout Diameter (in): 0.825'' Product no.: 749001232
Not available
16.9 GBP 0 £16.90 *
Ask question
Achieve precision with the SINCLAIR Bullet Seating Depth Tool! 🔍 Perfect for handloaders seeking accuracy in rifles. Get yours today!
SINCLAIR INTERNATIONAL 0.555" BULLET SEATING DEPTH GUIDE
Not available
Action Fit: Cooper 21, Cooper 38, Sako A1, Sako L46, Sako Vixen Diameter (in): 0.555'' Product no.: 749001236
Not available
15.9 GBP 0 £15.90 *
Ask question
Discover the Sinclair Bullet Seating Depth Tool for precise .740" measurements. Perfect for Sako TRG & Steyr users! 🎯 Enhance your reloading today!
SINCLAIR INTERNATIONAL 0.740" BULLET SEATING DEPTH GUIDE
Not available
Action Fit: Hall Express, Sako TRG, Steyr L, Steyr M, Steyr SSG Product no.: 749011665
Not available
14.9 GBP 0 £14.90 *
Ask question
12.9 41.9 12 GBP
18.9 GBP £18.90

Prices inclusive of duty & VAT.

Product no.: 749001230

Mfr. No.: 59-4675

The Sinclair Bullet Seating Depth Tool has been used for decades by handloaders seeking the most accuracy out of their rifles. Our newest model is made from one fourth inch ground and polished stainless steel with one end turned down for use with 17 and 20 caliber rifles and the other end used for 22 caliber and up. This tool helps you determine the length of a loaded round touching the rifling. The Sinclair Seating Depth Tool will work with most bolt action, single shot and AR type rifles. The tool includes a Delrin action guide suitable for most bolt-action rifles (0.690” Diameter fits Remingtons, Savages, Winchesters, and many Rugers). For the most accurate measurement, the Sinclair Bullet Seating Depth Tool uses your fireformed brass and bullets so you can expect an exact measurement, every time. Also available are guides use in AR-15's, AR-10's, and Tubb's 2000's. The guide is a little different than our standard bolt-action guides. This guide inserts into the back of the upper receiver (with the bolt removed). The tool is then used as normal. For best results couple this tool with our Bullet Comparators and a good set of calipers to get repeatable and precise Base-To-Ogive measurements.
Reordered
10

Backordered, delivery time approx. 4-12 weeks from the USA warehouse.

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Backordered, delivery time approx. 4-12 weeks from the USA warehouse.

Wish List Ask question

Variations:

Achieve precision with the SINCLAIR Bullet Seating Depth Tool! 🎯 Perfect for handloaders seeking accuracy in rifles. Get yours today!
SINCLAIR INTERNATIONAL 0.675" BULLET SEATING DEPTH GUIDE
18.9 GBP 0 £18.90 *
Reordered
Action Fit: Kimber 8400, Sako AIII, Sako AIV, Sako L61, Tikka, Weatherby Vanguard, Howa 1500 Diameter (in): 0.675'' Product no.: 749001230
Reordered
18.9 GBP 0 £18.90 *
Ask question
Achieve precision with the SINCLAIR Bullet Seating Depth Tool! 🎯 Perfect for handloaders seeking accuracy in rifles. Get yours today!
SINCLAIR INTERNATIONAL 0.785" BULLET SEATING DEPTH GUIDE
12.9 GBP 15 £12.90 *
In stock
Action Fit: Sig Sauer Diameter (in): 0.785'' Product no.: 749001231
In stock
12.9 GBP 15 £12.90 *
Ask question
Achieve precision with the SINCLAIR Bullet Seating Depth Tool! 🎯 Perfect for handloaders to ensure accuracy in your rifles.
SINCLAIR INTERNATIONAL 0.870" BULLET SEATING DEPTH GUIDE
13.9 GBP 24 £13.90 *
In stock
Action Fit: BBR, Hall, Millennium, RPA Diameter (in): 0.870'' Product no.: 749001233
In stock
13.9 GBP 24 £13.90 *
Ask question
-16 %
Achieve precision with the SINCLAIR Bullet Seating Depth Tool! 🔧 Perfect for handloaders seeking accuracy in rifles. Get yours today!
SINCLAIR INTERNATIONAL BULLET SEATING DEPTH GAUGE WITH STANDARD GUIDE
41.9 GBP 7 £41.90 * £49.90
In stock
Product no.: 749004650
In stock
41.9 GBP 7 £41.90 * £49.90
Ask question
Optimize your AR-308 with the SINCLAIR Bullet Seating Depth Tool. 📏 Perfect fit for AR-10, ensuring precision in every shot!
SINCLAIR INTERNATIONAL AR-308 BULLET SEATING DEPTH GUIDE
25.9 GBP 2 £25.90 *
In stock
Action Fit: AR-10 Product no.: 749008962
In stock
25.9 GBP 2 £25.90 *
Ask question
-14 %
Achieve unmatched accuracy with the SINCLAIR Bullet Seating Depth Tool! 🔧 Perfect for AR-15 and other rifles, ensuring precise measurements every time.
SINCLAIR INTERNATIONAL AR-15 BULLET SEATING DEPTH GUIDE
18.9 GBP 1 £18.90 * £21.90
In stock
Action Fit: AR-15 Product no.: 749008968
In stock
18.9 GBP 1 £18.90 * £21.90
Ask question
Achieve precision with the SINCLAIR Bullet Seating Depth Tool 🔧. Perfect for handloaders seeking accuracy in 17 to 22 caliber rifles!
SINCLAIR INTERNATIONAL 0.690" REPLACEMENT BULLET SEATING DEPTH GUIDE
17.9 GBP 5 £17.90 *
In stock
Product no.: 749000885
In stock
17.9 GBP 5 £17.90 *
Ask question
Achieve precision with the SINCLAIR Bullet Seating Depth Tool! 🎯 Perfect for handloaders using 17 to 22 caliber rifles for accurate measurements.
SINCLAIR INTERNATIONAL 0.590" BULLET SEATING DEPTH GUIDE
13.9 GBP 1 £13.90 *
In stock
Action Fit: CZ 527, Kimber 84M, Sako AII, Sako L579 Diameter (in): 0.590'' Product no.: 749001238
In stock
13.9 GBP 1 £13.90 *
Ask question
Achieve precision with the SINCLAIR Bullet Seating Depth Tool! 🔧 Perfect for handloaders, ensuring accurate measurements for your rifles.
SINCLAIR INTERNATIONAL 0.838" BULLET SEATING DEPTH GUIDE
17.9 GBP 0 £17.90 *
Not available
Action Fit: Kleingunther, Weatherby Mark V, Ruger Precision Rifle, Ruger American Diameter (in): 0.838'' Product no.: 749001235
Not available
17.9 GBP 0 £17.90 *
Ask question
Achieve precision with the SINCLAIR Bullet Seating Depth Tool! 🔧 Designed for accurate measurements in various rifles. Perfect for handloaders!
SINCLAIR INTERNATIONAL 0.825" BULLET SEATING DEPTH GUIDE
Not available
Action Fit: Steyr SBS, Steyr Scout Diameter (in): 0.825'' Product no.: 749001232
Not available
16.9 GBP 0 £16.90 *
Ask question
Achieve precision with the SINCLAIR Bullet Seating Depth Tool! 🔍 Perfect for handloaders seeking accuracy in rifles. Get yours today!
SINCLAIR INTERNATIONAL 0.555" BULLET SEATING DEPTH GUIDE
Not available
Action Fit: Cooper 21, Cooper 38, Sako A1, Sako L46, Sako Vixen Diameter (in): 0.555'' Product no.: 749001236
Not available
15.9 GBP 0 £15.90 *
Ask question
Discover the Sinclair Bullet Seating Depth Tool for precise .740" measurements. Perfect for Sako TRG & Steyr users! 🎯 Enhance your reloading today!
SINCLAIR INTERNATIONAL 0.740" BULLET SEATING DEPTH GUIDE
Not available
Action Fit: Hall Express, Sako TRG, Steyr L, Steyr M, Steyr SSG Product no.: 749011665
Not available
14.9 GBP 0 £14.90 *
Ask question

Description:

The Sinclair Bullet Seating Depth Tool has been used for decades by handloaders seeking the most accuracy out of their rifles. Our newest model is made from one fourth inch ground and polished stainless steel with one end turned down for use with 17 and 20 caliber rifles and the other end used for 22 caliber and up. This tool helps you determine the length of a loaded round touching the rifling. The Sinclair Seating Depth Tool will work with most bolt action, single shot and AR type rifles. The tool includes a Delrin action guide suitable for most bolt-action rifles (0.690” Diameter fits Remingtons, Savages, Winchesters, and many Rugers). For the most accurate measurement, the Sinclair Bullet Seating Depth Tool uses your fireformed brass and bullets so you can expect an exact measurement, every time. Also available are guides use in AR-15's, AR-10's, and Tubb's 2000's. The guide is a little different than our standard bolt-action guides. This guide inserts into the back of the upper receiver (with the bolt removed). The tool is then used as normal. For best results couple this tool with our Bullet Comparators and a good set of calipers to get repeatable and precise Base-To-Ogive measurements.

Top takeaways

  1. The Sinclair Bullet Seating Depth Tool provides precise measurements for optimal accuracy by using fireformed brass and bullets.
  2. It is compatible with a variety of rifles, including most bolt action, single shot, and AR types, and comes with a Delrin action guide.
  3. The tool is made from polished stainless steel, with dual ends for different caliber ranges, and should be used with Bullet Comparators and calipers for best results.

Attributes

  • Action Fit: Kimber 8400,Sako AIII,Sako AIV,Sako L61,Tikka,Weatherby Vanguard,Howa 1500
  • Diameter (in): 0.675''
  • Delivery weight: 0.023kg
  • Shipping height: 1mm
  • Shipping width: 57mm
  • Shipping length: 146mm

Item details

Made in USA

Customers reviews

Customer ratings (10)

4.8 / 5
Definitely recommended

Brownells USA Money well spent 29/04/2017

This product is simple and made from good materials. The first time I used it I shot a 0.165" group at 100 yards. That's pretty good for a 35 caliber hunting rifle. My load development consisted of seven rounds. Two charge weights. One fouler. Two three shot groups. The second group was money.

Definitely recommended

Brownells USA Works great! 18/12/2013

I bought this to use on my AR-10 and it worked just fine with 175g Sierra Match King BTHP bullets. I also bought the AR-10 insert. I will be using this on my new bolt gun to achieve proper seating depth. Great product!

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