JARD Ruger 10/22 Bedding Pillar Silver. 's bedding pillars for Ruger 10/22 rifles acts as a spacer that prevent overtightening of the stock mounting screw. Without a bedding pillar the mounting screw can easily be overtightened compressing wooden or synthetic stocks. This compression creates uneven pressure points and affects barrel harmonics. By eliminating the possibility of overtightening the mounting screw with a bedding pillar uneven pressure points are eliminated and rifle accuracy is maintained. PRODUCT DIMENSIONS: 0.8" LENGTH; 0.22" SCREW HOLE DIAMETER(BACK) 1.285" LENGTH; 0.255" SCREW HOLE DIAMETER; 0.49" OUTSIDE DIAMETER Specifications for JARD Ruger 10/22 Bedding Pillar: Manufacturer: JARD Length: 1.285 in Gun Make: Ruger Gun Model: Ruger 10/22 Color: Silver Package Contents: JARD Ruger 10/22 Bedding Pillar What firearm models does the manufacturer say JARD Ruger 10/22 Bedding Pillar is compatible with? The manufacturer suggests that JARD Ruger 10/22 Bedding Pillar is compatible with Ruger 10/22JARD 4672: Ruger 10/22 Bedding Pillar Silver