TECHT MRT INVERT MINI BOLT DELRIN NEW

TECHT MRT GOLD INVERT MINI BOLT SYSTEMThe TechT MRT (MASS REDUCTION TECHNOLOGY) Invert Mini Bolts have been engineered with efficiency and consistency as the most crucial design elements. Over the last few months we have tested many different crazy looking super light bolt designs and had mixed results. After long months of testing on the field and shooting over our high precision chrono, we found that using the stock type bolt face oring as well having no cuts between the two rear orings yielded the best consistency and efficiency. My results found that removing the stock-type face o-ring and replacing it with a standard o-ring reduced our velocity at any pressure and dwell by about 15-30 fps and decreased consistency. We think its because the stock type o-ring seals in the barrel really well. We also found that placing a groove between the two rear orings for added weight reduction actually decreased consistency. Instead of a standard deviation of between 3-4 FPS with no groove, we got a standard deviation ... Read More