Skip to main content
We may get paid by partner for deals, including promoted items

Menu

Trending
Top Brands Palmetto State ArmoryHot Yeti CoolerDeal NatchezDeal SitkaDeal 5.11Sale Winter Clearance Amazon Pickleball Sale Amazon FitnessHot Stores
Sinclair International .338 Federal/.338 Lapua Magnum 20 deg Shoulder Bump Gauge Insert by Sinclair -

Product Description

Finally, these gauges are essential for verifying loaded ammunition. By ensuring that each round meets your exact specifications, you can achieve greater accuracy and reliability in your shooting endeavors. Sinclair bump gauge inserts are a must-have for any serious reloader seeking precision and efficiency.

Sinclair International .338 Federal/.338 Lapua Magnum 20 deg Shoulder Bump Gauge Insert

at Palmetto State Armory
Browse all Palmetto State Armory deals
$11.99
In Stock at Palmetto State Armory
Price verified today
Buy Now at Palmetto State Armory
Secure checkout Easy returns
or compare prices
Amazon logo Amazon eBay logo eBay

Product Details

Brand Sinclair
MPN 338 LAPUA SINCLAIR BUMB GAGE I
Reloading Sinclair

More from Sinclair

Palmetto State Armory
Last Updated:
Oct 11, 2026 06:34 AM
Sinclair International .45 Cal #8-32 Male Rifle Bore Brush, Pack of 12 Sinclair International .45 Cal #8-32 Male Rifle Bore Brush, Pack of 12 View Details
$33.79 $37.99
11% off
Buy Now · $33.79
Palmetto State Armory
Palmetto State Armory
Last Updated:
Oct 11, 2026 06:34 AM
Sinclair International .22 Cal Lug Recess Cleaning Tool Sinclair International .22 Cal Lug Recess Cleaning Tool View Details
$37.99 $41.99
10% off
Buy Now · $37.99
Palmetto State Armory
Palmetto State Armory
Last Updated:
Oct 11, 2026 06:34 AM
Sinclair International .270 Cal #8-32 Male Rifle Bore Brush, Pack of 12 Sinclair International .270 Cal #8-32 Male Rifle Bore Brush, Pack of 12 View Details
$33.99
Buy Now · $33.99
Palmetto State Armory
Palmetto State Armory
Last Updated:
Oct 11, 2026 06:34 AM
Sinclair International .17 Cal/.20 Cal/.22 Cal/.270 Cal/.30 Cal/.338 Cal Hex Style Bullet Comparator Sinclair International .17 Cal/.20 Cal/.22 Cal/.270 Cal/.30 Cal/.338 Cal Hex Style Bullet Comparator View Details
$19.69
Buy Now · $19.69
Palmetto State Armory
Palmetto State Armory
Last Updated:
Oct 11, 2026 06:34 AM
Sinclair International Primer Pocket Uniformer Kit Sinclair International Primer Pocket Uniformer Kit View Details
$204.99
Buy Now · $204.99
Palmetto State Armory
Palmetto State Armory
Last Updated:
Oct 11, 2026 06:34 AM
Sinclair International .223 Cal Cleaning Link Sinclair International .223 Cal Cleaning Link View Details
$16.39 $18.99
14% off
Buy Now · $16.39
Palmetto State Armory
Palmetto State Armory
Last Updated:
Oct 11, 2026 06:34 AM
Sinclair International .22-250 Ackley Improved/6mm 40 deg Shoulder Bump Gauge Insert Sinclair International .22-250 Ackley Improved/6mm 40 deg Shoulder Bump Gauge Insert View Details
$11.99
Buy Now · $11.99
Palmetto State Armory
Palmetto State Armory
Last Updated:
Oct 11, 2026 06:34 AM
Sinclair International Gen 2 .17 Cal/.338 Cal Expander Die Sinclair International Gen 2 .17 Cal/.338 Cal Expander Die View Details
$59.49 $65.99
10% off
Buy Now · $59.49
Palmetto State Armory
Palmetto State Armory
Last Updated:
Oct 11, 2026 06:34 AM
Sinclair International 6mm #8-32 Male Rifle Bore Brush, Pack of 12 Sinclair International 6mm #8-32 Male Rifle Bore Brush, Pack of 12 View Details
$29.49 $32.99
11% off
Buy Now · $29.49
Palmetto State Armory
Palmetto State Armory
Last Updated:
Oct 11, 2026 06:34 AM
Sinclair International .50 BMG Concentricity Gauge w/Dial Indicator Sinclair International .50 BMG Concentricity Gauge w/Dial Indicator View Details
$94.99
Buy Now · $94.99
Palmetto State Armory
Palmetto State Armory
Last Updated:
Oct 11, 2026 06:34 AM
Sinclair International Priming Tool Sinclair International Priming Tool View Details
$113.99 $125.99
10% off
Buy Now · $113.99
Palmetto State Armory
Palmetto State Armory
Last Updated:
Oct 11, 2026 06:34 AM
Sinclair International Mainspring Tool Sinclair International Mainspring Tool View Details
$40.89 $44.99
9% off
Buy Now · $40.89
Palmetto State Armory
Palmetto State Armory
Last Updated:
Oct 11, 2026 06:34 AM
Sinclair International .35 Cal #8-32 Male Rifle Bore Brush, Pack of 12 Sinclair International .35 Cal #8-32 Male Rifle Bore Brush, Pack of 12 View Details
$35.49
Buy Now · $35.49
Palmetto State Armory
Palmetto State Armory
Last Updated:
Oct 11, 2026 06:34 AM
Sinclair International .41 Cal #8-32 Male Rifle Bore Brush, Pack of 12 Sinclair International .41 Cal #8-32 Male Rifle Bore Brush, Pack of 12 View Details
$29.79 $32.99
10% off
Buy Now · $29.79
Palmetto State Armory
Palmetto State Armory
Last Updated:
Oct 11, 2026 06:34 AM
Sinclair International .22 Cal #8-32 Male Rifle Bore Brush, Pack of 12 Sinclair International .22 Cal #8-32 Male Rifle Bore Brush, Pack of 12 View Details
$30.69
Buy Now · $30.69
Palmetto State Armory
Palmetto State Armory
Last Updated:
Oct 11, 2026 06:34 AM
Sinclair International .17 Cal Case Neck Wall Thickness Micrometer Sinclair International .17 Cal Case Neck Wall Thickness Micrometer View Details
$283.99 $312.99
9% off
Buy Now · $283.99
Palmetto State Armory
Palmetto State Armory
Last Updated:
Oct 11, 2026 06:34 AM
Sinclair International .220 Swift 21 deg Shoulder Bump Gauge Insert Sinclair International .220 Swift 21 deg Shoulder Bump Gauge Insert View Details
$11.99
Buy Now · $11.99
Palmetto State Armory
Palmetto State Armory
Last Updated:
Oct 11, 2026 06:34 AM
Sinclair International .20 Cal #5-40 Male Rifle Bore Brush, Pack of 12 Sinclair International .20 Cal #5-40 Male Rifle Bore Brush, Pack of 12 View Details
$32.59
Buy Now · $32.59
Palmetto State Armory
Palmetto State Armory
Last Updated:
Oct 11, 2026 06:34 AM
Sinclair International 10mm/.40 Cal/.41 Cal #8-32 Male Pistol Bore Brush, Pack of 12 Sinclair International 10mm/.40 Cal/.41 Cal #8-32 Male Pistol Bore Brush, Pack of 12 View Details
$17.09 $18.99
10% off
Buy Now · $17.09
Palmetto State Armory
Palmetto State Armory
Last Updated:
Oct 11, 2026 06:34 AM
Sinclair International .22-250 Remington/.223 WSSM/.243 WSSM/6.5mm 28 deg Shoulder Bump Gauge Insert Sinclair International .22-250 Remington/.223 WSSM/.243 WSSM/6.5mm 28 deg Shoulder Bump Gauge Insert View Details
$11.99
Buy Now · $11.99
Palmetto State Armory