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Availability: In Stock
If you reload rifle cartridges, you know case trimming is a grind—literally and figuratively. The RCBS X-Die Full Length Sizer Die solves that problem with a patented mandrel design that dramatically cuts trim work after the initial case prep. Rather than fighting case growth shot after shot, this precision reloading tool lets you resize cases with minimal length growth, so you trim once at the start and move on. It's built for shooters who want consistent case sizing without endless maintenance between firings.
The X-Die's specially designed mandrel includes an integrated expander ball and decapping pin, which work together to control how much the case mouth grows during the sizing stroke. The tight tolerance between the mandrel and die neck wall is the key: it prevents the neck from thickening as the case is pushed back, so repeated sizing cycles produce minimal and stable length growth. After initial sizing, cases will stabilize well below maximum length, with no loss of accuracy or case life. This is the kind of efficiency that rewards consistent, high-volume reloaders.
RCBS engineered the X-Die for shooters ready to invest in their reloading setup—this is the sizer die only. If you're just getting started with a new caliber and need a matching seating die, consider ordering the X-Die Full Length Set instead, which bundles this sizer with an RCBS Standard Seater Die. Either way, you're looking at a tool that pays for itself in saved time and trimming wear.
| Product Type | Full Length Sizer Die |
| Brand | RCBS |
| Components Included | X-Die Sizer Die with integrated expander ball and decapping pin |
| Design Type | Patented X-Die mandrel system |
No. You trim your cases once at the beginning to set them to .020 inch below maximum length. After that, the X-Die's mandrel design keeps neck growth minimal and stable, so cases won't exceed maximum length in normal reloading cycles. You won't need to trim again unless you're pushing extreme round counts.
This product is the sizer die only. It includes the patented mandrel with integrated expander ball and decapping pin. You'll need a separate seating die to complete your reloading setup. RCBS offers the X-Die Full Length Set if you want the sizer and seater together.
Yes, but minimally. Cases will grow a few thousandths of an inch initially, then stabilize well below maximum case length. This stabilized growth is normal and doesn't affect accuracy or case longevity when you're using the X-Die as designed.
The X-Die is a precision tool best suited to reloaders who understand case prep and trimming. Beginners should start with standard dies and learn the basics first. Once you're comfortable with full-length sizing, the X-Die's time savings really shine.
SKU: 115758889 • Weight: 0.8oz
Current Stock: Out of stock
Availability: In Stock
Current Stock: Out of stock
If you reload rifle cartridges, you know case trimming is a grind—literally and figuratively. The RCBS X-Die Full Length Sizer Die solves that problem with a patented mandrel design that dramatically cuts trim work after the initial case prep. Rather than fighting case growth shot after shot, this precision reloading tool lets you resize cases with minimal length growth, so you trim once at the start and move on. It's built for shooters who want consistent case sizing without endless maintenance between firings.
The X-Die's specially designed mandrel includes an integrated expander ball and decapping pin, which work together to control how much the case mouth grows during the sizing stroke. The tight tolerance between the mandrel and die neck wall is the key: it prevents the neck from thickening as the case is pushed back, so repeated sizing cycles produce minimal and stable length growth. After initial sizing, cases will stabilize well below maximum length, with no loss of accuracy or case life. This is the kind of efficiency that rewards consistent, high-volume reloaders.
RCBS engineered the X-Die for shooters ready to invest in their reloading setup—this is the sizer die only. If you're just getting started with a new caliber and need a matching seating die, consider ordering the X-Die Full Length Set instead, which bundles this sizer with an RCBS Standard Seater Die. Either way, you're looking at a tool that pays for itself in saved time and trimming wear.
| Product Type | Full Length Sizer Die |
| Brand | RCBS |
| Components Included | X-Die Sizer Die with integrated expander ball and decapping pin |
| Design Type | Patented X-Die mandrel system |
No. You trim your cases once at the beginning to set them to .020 inch below maximum length. After that, the X-Die's mandrel design keeps neck growth minimal and stable, so cases won't exceed maximum length in normal reloading cycles. You won't need to trim again unless you're pushing extreme round counts.
This product is the sizer die only. It includes the patented mandrel with integrated expander ball and decapping pin. You'll need a separate seating die to complete your reloading setup. RCBS offers the X-Die Full Length Set if you want the sizer and seater together.
Yes, but minimally. Cases will grow a few thousandths of an inch initially, then stabilize well below maximum case length. This stabilized growth is normal and doesn't affect accuracy or case longevity when you're using the X-Die as designed.
The X-Die is a precision tool best suited to reloaders who understand case prep and trimming. Beginners should start with standard dies and learn the basics first. Once you're comfortable with full-length sizing, the X-Die's time savings really shine.
SKU: 115758889 • Weight: 0.8oz