Hornady Lock-N-Load Headspace Bushing .420″
$6.61
Designed for use with the Lock-N-Load Headspace Gauge, these bushings ensure precise case measurements for a perfect fit in any firearm.
1 in stock
Designed for use in the Lock-N-Load Headspace Gauge these bushings are machined to exacting tolerances to ensure reliable results every time you use them. The Lock-N-Load Headspace Gauge allows the reloader to precisely measure cases while sizing them for a perfect fit in any firearm.
- For use with the Hornady Headspace Comparator
- Provides the ability to check most bottleneck cases from .17 REM through belted Magnums (See description for models that apply to this size)
- Extend brass life improve accuracy and enhance safety
- All bushing are interchangeable with the Comparator
- Bullet comparator and calipers sold separately
- E-.420" 284 WIN 7mm Rem MAG 300 WIN MAG 8mm Rem MAG 338 WIN MAG 375 H&H 7mm STW 7mm Ultra MAG 300 Ultra Mag 300 WSM 338 Ultra
| Weight | 0.082 lbs |
|---|---|
| Dimensions | 7.000 × 4.000 × 1.750 in |
| Manufacturer | Hornady |
| Finish | Precision machined |
| Material | Machined steel |
| Dimensions | .420″ |
| Compatible With | Hornady Lock-N-Load Headspace Gauge |
PROCESSING & SHIPPING
Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.
FIREARM TRANSFERS
- Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
- Your receiving FFL will need to email their license to [email protected] before we can ship.
- Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.
You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.

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