PredatAR problem:
Total I have approx 1000rds through this gun. I have mainly shooting M118LR, Mk316/319 and various Federal and BH 175/168gr rounds. The problem started at about the 200rd mark. When the bolt is heavily oiled the weapon will run smooth and extract flawlessly. However after 40-60rds and the large quantity of oil is sprayed/burned off the weapon will fail to extract on almost every round until more oil is applied. The weapon will fire, bolt goes to the rear, but the extractor did not maintain a bite on the rim of the spent case. So the bolt then tries to feed another live round on top of the spent case in the chamber. Once the live is cleared and the bolt is sent forward again on an empty case, you can then extract the spent case with the charging handle. The case is not stuck. It comes out freely when hand cycling the bolt. The spent cases show no signs of rupture, torn rim or any deformity.
Any idea on a fix?
Bookmarks