Over 300,000 customers - we say thank you!

40,000+ products for hunting and shooting sports

Achieve precise cartridge headspace and bullet measurements with SAC's Modular Headspace Comparator Inserts, crafted from durable 17-4 Stainless Steel.

SHORT ACTION CUSTOMS 6MM X 20° MODULAR HEADSPACE COMPARATOR INSERT

100050137
Variations
Filters:
Variations:

Variations:

Cartridge: 243/6 mm (.243) Product no.: 100050137
Backorderable
43.9 GBP 0 £43.90 *
-9 %
Cartridge: 22 Caliber (.223-.224) Product no.: 100050131
In stock
39.9 GBP 1 £39.90 * £43.90
-9 %
Cartridge: 22 Caliber (.223-.224) Product no.: 100050130
In stock
39.9 GBP 1 £39.90 * £43.90
-9 %
Cartridge: 25 Caliber (.251) Product no.: 100050133
In stock
39.9 GBP 1 £39.90 * £43.90
-6 %
Cartridge: 30 Caliber (.308) Product no.: 100050157
In stock
46.9 GBP 1 £46.90 * £49.90
-9 %
Cartridge: 30 Caliber (.308) Product no.: 100050155
In stock
39.9 GBP 1 £39.90 * £43.90
-9 %
Cartridge: 204 Ruger Product no.: 100050132
In stock
39.9 GBP 1 £39.90 * £43.90
-9 %
Cartridge: 30-06 Springfield Product no.: 100050163
In stock
39.9 GBP 1 £39.90 * £43.90
-9 %
Cartridge: 300 Winchester Magnum Product no.: 100050162
In stock
39.9 GBP 3 £39.90 * £43.90
-9 %
Cartridge: 375 Cheytac Product no.: 100050170
In stock
39.9 GBP 2 £39.90 * £43.90
-9 %
Cartridge: 264/6.5 mm (.264) Product no.: 100050143
In stock
39.9 GBP 1 £39.90 * £43.90
-9 %
Cartridge: 6.5 x 55 mm Swedish Mauser Product no.: 100050147
In stock
39.9 GBP 1 £39.90 * £43.90
-6 %
Cartridge: 243/6 mm (.243) Product no.: 100050136
In stock
46.9 GBP 3 £46.90 * £49.90
-9 %
Cartridge: 7 mm Remington Magnum Product no.: 100050151
In stock
39.9 GBP 2 £39.90 * £43.90
-9 %
Cartridge: 7 mm Product no.: 100050153
In stock
39.9 GBP 1 £39.90 * £43.90
Cartridge: 300 AAC Blackout Product no.: 100050159
Backorderable
49.9 GBP 0 £49.90 *
Cartridge: 264/6.5 mm (.264) Product no.: 100050142
Backorderable
49.9 GBP 0 £49.90 *
Cartridge: 22 Caliber (.223-.224) Product no.: 100050171
Not available
38.9 GBP 0 £38.90 *
Cartridge: 22 Caliber (.223-.224) Product no.: 100050135
Not available
38.9 GBP 0 £38.90 *
Cartridge: 223 Remington Product no.: 100050134
Not available
38.9 GBP 0 £38.90 *
Cartridge: 270 Winchester Product no.: 100050146
Not available
39.9 GBP 0 £39.90 *
39.9 49.9 43 GBP
43.9 GBP £43.90

Prices inclusive of duty & VAT.

Product no.: 100050137

Mfr. No.: SAC-620HSC

Headspace Inserts for your Modular Headspace Comparator ***Requires Modular Headspace Comparator Body*** The Modular Headspace Body must be purchased separately and can be found at the Modular Headspace Comparator Body page. New Modular Design for the most accurate cartridge headspace and bullet measurements available! Newly designed Modular Headspace Comparator (MHC) is an updated version of the highly successful dedicated Headspace Comparator that SAC previously made out of 6061 aluminum. They improved on its design allowing the new MHC to be used with cartridges up to 338 Lapua Magnum and more. Each bullet and headspace insert is precision machined out of 17-4 Stainless Steel for increased durability and corrosion resistance. Simply put, these are the highest quality headspace and bullet measuring tools available.
Backorderable
1
2
3
4
5
6
7
8
9
10+
£43.90

Prices inclusive of duty & VAT.

1
2
3
4
5
6
7
8
9
10+

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

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

No charges until we ship
No charge:
Your credit card will not be charged when you place your order.

No commitments:
You are under no obligation until the goods are shipped. You can cancel your order at any time before shipping - free of charge.

Not until shipping:
Your credit card will only be charged once we ship your order. Not before.
39.9 49.9 43 GBP
Description Specification Customers reviews Accessories

SHORT ACTION CUSTOMS 6MM X 20° MODULAR HEADSPACE COMPARATOR INSERT

43.9 GBP £43.90

Prices inclusive of duty & VAT.

1
2
3
4
5
6
7
8
9
10+
£43.90

Prices inclusive of duty & VAT.

1
2
3
4
5
6
7
8
9
10+

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

Description:

Precision-engineered headspace solutions for the discerning shooter.

The MODULAR HEADSPACE COMPARATOR INSERTS, SHORT ACTION CUSTOMS 6MM X 20° MODULAR HEADSPACE COMPARATOR INSERT are essential tools for achieving the utmost accuracy in cartridge headspace and bullet measurements.

Product Features:

  • Compatibility: Designed for use with the Modular Headspace Comparator Body (sold separately).
  • New Modular Design: Ensures the highest accuracy for cartridge headspace and bullet measurements.
  • Enhanced Capability: New MHC accommodates cartridges up to .338 Lapua Magnum and beyond.
  • Durability: Each insert is precision machined from 17-4 Stainless Steel, offering superior durability and corrosion resistance.
  • Quality Assurance: These are the finest headspace and bullet measuring tools available on the market.

Upgrade your shooting experience with the MODULAR HEADSPACE COMPARATOR INSERTS from SHORT ACTION CUSTOMS. Ensure precision and reliability in every shot.



Top takeaways

  1. The Modular Headspace Comparator Inserts require a separately purchased Modular Headspace Comparator Body.
  2. The new Modular Design allows for the most accurate cartridge headspace and bullet measurements, up to 338 Lapua Magnum.
  3. Each insert is precision machined from 17-4 Stainless Steel for enhanced durability and corrosion resistance.

Attributes

  • Cartridge:
    243/6 mm (.243)
  • Delivery weight: 0.034kg
  • Shipping height: 25mm
  • Shipping width: 89mm
  • Shipping length: 102mm

Item details

Made in USA

Customers reviews

Customer ratings (0)

0 / 5

Variations:

Cartridge: 243/6 mm (.243) Product no.: 100050137
Backorderable
43.9 GBP 0 £43.90 *
-9 %
Cartridge: 22 Caliber (.223-.224) Product no.: 100050131
In stock
39.9 GBP 1 £39.90 * £43.90
-9 %
Cartridge: 22 Caliber (.223-.224) Product no.: 100050130
In stock
39.9 GBP 1 £39.90 * £43.90
-9 %
Cartridge: 25 Caliber (.251) Product no.: 100050133
In stock
39.9 GBP 1 £39.90 * £43.90
-6 %
Cartridge: 30 Caliber (.308) Product no.: 100050157
In stock
46.9 GBP 1 £46.90 * £49.90
-9 %
Cartridge: 30 Caliber (.308) Product no.: 100050155
In stock
39.9 GBP 1 £39.90 * £43.90
-9 %
Cartridge: 204 Ruger Product no.: 100050132
In stock
39.9 GBP 1 £39.90 * £43.90
-9 %
Cartridge: 30-06 Springfield Product no.: 100050163
In stock
39.9 GBP 1 £39.90 * £43.90
-9 %
Cartridge: 300 Winchester Magnum Product no.: 100050162
In stock
39.9 GBP 3 £39.90 * £43.90
-9 %
Cartridge: 375 Cheytac Product no.: 100050170
In stock
39.9 GBP 2 £39.90 * £43.90
-9 %
Cartridge: 264/6.5 mm (.264) Product no.: 100050143
In stock
39.9 GBP 1 £39.90 * £43.90
-9 %
Cartridge: 6.5 x 55 mm Swedish Mauser Product no.: 100050147
In stock
39.9 GBP 1 £39.90 * £43.90
-6 %
Cartridge: 243/6 mm (.243) Product no.: 100050136
In stock
46.9 GBP 3 £46.90 * £49.90
-9 %
Cartridge: 7 mm Remington Magnum Product no.: 100050151
In stock
39.9 GBP 2 £39.90 * £43.90
-9 %
Cartridge: 7 mm Product no.: 100050153
In stock
39.9 GBP 1 £39.90 * £43.90
Cartridge: 300 AAC Blackout Product no.: 100050159
Backorderable
49.9 GBP 0 £49.90 *
Cartridge: 264/6.5 mm (.264) Product no.: 100050142
Backorderable
49.9 GBP 0 £49.90 *
Cartridge: 22 Caliber (.223-.224) Product no.: 100050171
Not available
38.9 GBP 0 £38.90 *
Cartridge: 22 Caliber (.223-.224) Product no.: 100050135
Not available
38.9 GBP 0 £38.90 *
Cartridge: 223 Remington Product no.: 100050134
Not available
38.9 GBP 0 £38.90 *
Cartridge: 270 Winchester Product no.: 100050146
Not available
39.9 GBP 0 £39.90 *

Customers also bought

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.

Back to top