Home / Products / MTM Case-gard / MTM J-20 Slip Top Ammo Box for WSM 45-70 to 30-30 20 Rounds Clear Red
MTM J-20 Slip Top Ammo Box for WSM 45-70 to 30-30 20 Rounds Clear Red
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May 20, 2026
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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: 25 / 270 / 300 / 325 / 338 / 7mm WSM, 30 Rem, 300 / 7mm Rem. SAUM, 300 / 338 RCM, 348 / 356 / 375 / 38-56 / 40-65 Win., 375 Rimless 2 A 1/4", 376 Steyr, 38-55 Ballard, 45-70 Govt., 40-82 / 45-90 / 348 WCF, 40-60 / 450 Marlin, 30-40 Krag, 400-375 Belted Nitro Exp., 6.71 Phantom, 7.5 Schmidt Rubin Swiss, 7.82 Patriot, 7mm Rem. SAUM / 8x56 Rimmed Hungarian, 8.59 Galaxy, 9.5x47 Rimmed, 10.75x65 RimmedLid is at 3.08" QAL.
