Is the 22 BR Norma case length the same as the 6 BR Norma case length at 1.560? The diagrams of the 22 BR cartridge shows it as 1.520 which fits the "old" Remington chambers. I just went through trimming Lapua brass to fit my nephew's old 40XBR in 22 BR. Sure was a lot of trimming! Hopefully if I get a new 22 BR Norma barrel for my action, the chamber would be more like the 6 BR Norma.