Ivey Adjustable Scope Mount system provides a large range of incremental elevation adjustment used in precision long range shooting to 2 miles. Models with 0-60 MIL & 200 MOA are available with the durability, repeatability, and accuracy for field use on large magnums 338LM, 375CT, 408CT, 416B, 50BMG and similar ELR cartridges. (less)