Took the Stolle Panada rifle in 6BRA to the range today, since COVID atarted the lock down. Shot 3 rounds, then when closing the bolt the firing pin would drop. Picked everything up and headed home. Upon the inspection, apperas the tip of the sear sheared off (found the piece). Questions: Is this normal for the end to shear off? What trigger replacements would you recommend (F-Class Open, Panada action)?