MTM J-20 Slip Top Ammo Box 7mm Rem -338 Win Clear Green
$2.55
The MTM J-20 Slip Top Ammo Box in clear green holds 7mm Remington to 338 Winchester rounds. Made of tough polypropylene for lasting durability.
4 in stock
MTM CASE-GARD J-20 series ammunition cases are a favorite of rifle enthusiasts throughout the world. Made of virtually indestructible polypropylene that will not warp crack chip peel expand or contract. The CASE-GARD J-20’s are available in five sizes. All rounds are listed bullet up position.
Some reloaders don't like the lid touching there bullets so the lid dimension below is for them. There are a lot of reloaders that expand the case as much as half inch and claim no problems with accuracy.
Cartridge Sizes: 260 Rem. 6.5-08 A-Square 257 / 270 / 300 / 338-378 / 340 / 375 / 7mm Wby. Mag. 264 / 300 / 330 / 338 / 458 Win. Mag. 300 / 375 H&H Mag. 300 / 338 / 375 / 7mm / Rem. Ultra Mag. 30 Super Flanged 300 / 330 / 375 / 416 Dakota 303 Brit. 308 / 358 Norma Mag. 358 STA 25-284 / 38-72 / 405 Win. 400 / 400-350 Nitro Exp 400-360 Thin Rim Purdey 404 Jeffery 40-65 Sharps Str. 444 Marlin 375 Ruger 6.5-284 Norma 6.53 Scramjet 6.5×52 Ital. 6.5×57 Rimmed 7.21 Firebird 7mm Rigby 7×61 S&H 416 / 6.5 / 7mm / 8mm Rem. Mag. 416 Taylor 458 Lott 6.17 Spitfire 7mm STW 7.5x 54 Swiss 7.62x54R 8×64 Brenneke 8×65 Rimmed 8x68S Mag. 9.3×62 9.3×82 Rimmed 9.5×57 10.75×68 Mauser.
Lid is at 3.84" QAL.
| Weight | 0.300 lbs |
|---|---|
| Dimensions | 6.800 × 4.000 × 1.700 in |
| Manufacturer | Mtm Molded Products Company |
| Finish | Clear Green |
| Material | polypropylene |
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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