Send it to a factory authorized repair center.
Contact Browning.
Needs to be done by a good gunsmith.
You find a Browning trained armorer
The Browning 78 rifle has a weight of 8 lbs. and 6 oz. The product has limited distribution, and sells for $1,379.00.
You need a trained Browning gunsmith
No
Rings, extractor/ejector, firing pin. forearm
A call to Browning for a manual or a trip to a gunsmith is in order.
Clean it thoroughly. Check the magazine. Try different ammunition. Check the extractor.
You can contact Browning Customer Service through their website for a definitive answer.
I have a 1989 Browning Accelerator Plus and I was wanting to adjust the draw length?
Best to ask a gunsmith for assistance