Freshly built 6.5 G using E-lander mags...
A very stiff extractor requires a lot of ass to snap over the rim of the cartridge- single round loaded into the magazine chambers fine.
However, multiple rounds loaded into the mag results in the bolt not getting into battery (no forward assist installed yet, being added). The E-Lander mags seem to have a ton of spring tension on the follower- it's very difficult to get the rounds to slide forward with thumb pressure due to the resistance, and this gets heavier with multiple rounds. A single round slides much more easily on the plastic follower, than it does on a another round below it.
Best I can deduce, the buffer spring is using most of it's energy just stripping the round from the magazine- and by the time the bolthead meets the cartridge there isn't enough residual energy for the extractor to snap over the casehead.
At first thought a higher power spring would seem to be a possible fix, but concerned that this could adversely affect cycling. With testing and load development about 100 rounds down the tube and the extractor hasn't "loosened up" enough to resolve the problem.
Should I change out the buffer spring?
A very stiff extractor requires a lot of ass to snap over the rim of the cartridge- single round loaded into the magazine chambers fine.
However, multiple rounds loaded into the mag results in the bolt not getting into battery (no forward assist installed yet, being added). The E-Lander mags seem to have a ton of spring tension on the follower- it's very difficult to get the rounds to slide forward with thumb pressure due to the resistance, and this gets heavier with multiple rounds. A single round slides much more easily on the plastic follower, than it does on a another round below it.
Best I can deduce, the buffer spring is using most of it's energy just stripping the round from the magazine- and by the time the bolthead meets the cartridge there isn't enough residual energy for the extractor to snap over the casehead.
At first thought a higher power spring would seem to be a possible fix, but concerned that this could adversely affect cycling. With testing and load development about 100 rounds down the tube and the extractor hasn't "loosened up" enough to resolve the problem.
Should I change out the buffer spring?
