Product Description The RCBS Full-Length 2-Die Set (Group A) for .338 Winchester Magnum is designed for reloading bottleneck rifle cases with consistent, SAAMI-compliant results. This set includes a full-length sizer die with an expander-decapping unit to size the case body, remove the spent primer, and expand the neck for bullet seating. It also includes a seater die with a bullet seater plug and an integrated roll crimp, allowing you to seat and crimp in one operation for secure bullet retention. Product Highlights Full-length sizing die brings cases back to SAAMI minimum cartridge dimensions for reliable chambering Expander-decapping unit de-primes and expands the neck to streamline bottleneck rifle case preparation Die venting helps prevent case damage from trapped air and reduces issues from excess lubricant Seater die includes a bullet seater plug and built-in roll crimp to seat and crimp in one step Group A rifle die set engineered specifically for .338 Winchester Magnum reloading Specs Brand: RCBS Manufacturer Part Number: 16301 UPC: 076683163011 Cartridge: .338 Winchester Magnum Die Set Type: Full-Length 2-Die Set (Sizer/Seater) Series: Group A Intended Use: Bottleneck rifle case reloading Full-Length Sizer Die: Expander-decapping unit; vented design; sizes to SAAMI minimum dimensions Seater Die: Bullet seater plug; built-in roll crimp Thread: 7/8-inch-14 Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.