At 76, you all look like kiddies to me (smile and remember the good old days). Lots of practical advice given by the "been there, done that" crowd. All I can add is relax, use a light grip and focus on the follow through. Control your breathing and develop a repeatable pattern between sight pattern and trigger pull, even the best shooters have some movement (especially offhand). Light trigger action and a relatively heavy rifle/pistol will help. Grip the rifle at the balance point for the minimum movement. Pretty much basic stuff, but it all adds up. Good luck and hang in there.
I'm 64, and am starting to notice the shakes. All my rifle shooting now requires some form of support, most often the side of a tree or branch. But, the biggest improvement came when I bought a hatsan 135 that weighs-in at 11.5 lbs scoped. It's tougher to tote around, but my aim, even off-hand, has greatly improved.
Was not sure how to put the question and did not want to say "old" . I'm getting into the mature range 60+. My question is how the heck do you adapt for the shaking? It seems like I have shakes that I never knew I had. I have been trying to pull the trigger between them but hope there is a better way. It might just be something we have to put up with. It bothers me when I can have a friend check my rifle and he can stack the pellets and I try and I get a 1/2 dollar size group. Thanks for any help.Don
...try not drinking as much coffee...
From your avatar it looks like you might be shooting pistols. I cannot help you there.However, for rifles, I got some good advice from a HFT shooter here in Georgia named Walt; another geezer gunner like you and me. I'm 70 this past month. He, and now I, do what he called "drive_by" shots on off hand and kneeling lanes. At or age, holding steady is harder than moving, so to overcome the shakes we use deliberate, intentional movement to engage all the eye/muscle coordination we have left. I am best when I sweep the target from lower left to upper right. That took some trial and error to determine by sweeping across from all different directions. We both do HFT so we can use a seat and bipod to be stable on all non-forced lanes. I don't have trouble with the bipod if I control my breathing and CO2 and O2 levels. And don't squeeze the hands or posture muscles. Hope this helps.