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Sinclair stainless steel 20- degree Bump Gage for .338 Lapua & all similar cases with 20° shoulder


Used to measure the amount of shoulder bump when setting up sizing die. Bump gage is the most accurate when used on the granite surface plate of our Ultimate Cartridge Check System. Recommended bump of .001 to .002 shoulder setback for bolt actin guns and .005 for Semi-Auto and other repeating actions. POST PAID $11.95

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