Speaking of dry firing, I've found that it is most enjoyable to do it at 10 yards with an official target. It seems more realistic than a mark on the wall. A red dot really helps to see the movement after the hammer drops. You can insert a rubber o ring to soften the hammer blow if you are concerned about that.

I actually learned how to shoot revolvers double action with this airgun. It took about 5000 rounds. The trigger isn't as good as a real S&W but it's close enough. The 6" version is better for a little added velocity. I can get about 45 rounds of 3 shot strings out of one CO2 cartridge. It's very realistic training. Umarex service was excellent. I wore out the first Umarex and they sent me a new one.

I struggle with flinching and don't like heavy recoil. I mastered a light 357 load once but was shooting many rounds twice a week. That was before I started dry firing. And the flinch returned after I took a break from that gun.
I'm now working on overcoming a flinch with my 45 revolver. Dry firing with the gun that you flinch with definitely helps.

These 625-4 guns are really accurate. I have one with a red dot and one with iron sights. They both shoot under 2" at 50 yards from a sand bag.


Yes, dry firing is one of the best things I've found for improving accuracy. Give it a try.