Now we are venturing into an esoteric topic - The mechanics and mysteries of a Dual Magnum. I have not touched the trigger yet, but I'm sure it is a standard evolution.
Cocking linkage is different. The piston is larger (with two notches for "dual" power) than a eliminator
.
All the o-rings are fine after all these years.
Tear down is very similar to an eliminator. Added to the original document due to growing pains.
Apparently the o-rings look fine, but under pressure they are not. When I tried pumping up the ram outside of the gun to test for leaks, it started leaking after a few pumps from the brocock slim jim.
I happen to have a dial caliper to determine o-ring sizes. There are two different kinds in the ram. These are standard US sizes:
One, small o-ring in the front:
CS: .070
ID: .878
OD: 1.006
AS568-020 N70
Two, larger o-rings:
CS: .099
ID: .806
OD: 1.024
AS568-117 N70
https://www.allorings.com/o-ring-size-charts-index
