St Action Pro 12GA Gauge Shotgun Safety Trainer Cartridge Dummy Shell Rounds with Brass Case, Orange, 10 Pack

These lightweight snap caps help better emulate spent hulls than the typical metal snap caps. Being made on realistic hulls, though, they are not indestructible. The shell stop in a tube-fed shotgun will deform the case head when the snaps rapidly advance in the tube every time you run the pump. A few deformations is fine, but eventually the edge of the rim will deform to the point that it may drag in the tube and cause an issue (especially problematic for a Mossberg shotgun with the spring unable to be relieved from the end cap like a Remington). I don't recommend using these from a full tube regularly. They're good for practicing reloads, but I would not routinely transition to a shooting drill afterward. Having only one in the tube and one in the chamber removes any risk of rim damage; having two in the tube means far less spring pressure is exerted on the one snap that will impact the shell stop. I also recommend numbering the snaps with a Sharpie or paint pen so you can keep track of which get too damaged to use. They have drawbacks, but I still think these are incredibly helpful products, especially with the quantity in which they can be purchased.

Durable. Works perfectly. No jamming. Good for practicing loading/unloading. Protects firing pin.

Update: (7/23/20) As a new shotgun owner, I am still learning. I recently learned that "2 3/4" shells are approximately that length AFTER being shot, not before. Before use, 2 3/4" shells are normally 2 1/4". So, my bad on the length issue in my earlier review! In addition, another factor when selecting dummy rounds is the brass/metal thickness, sometimes causing issues mainly with new semi-auto shotguns. I hope these shells work in my shotgun, I think these snap caps will. I will also watch how much the brass and plastic flakes off during loading, maybe dry fire If too much flaking occurs, I will quickly move to another dummy round. ------------------------------------------ Needed 2 3/4" Dummy Loads, but these are 2 1/4". Some reviews (maybe for a similar product from the same Seller) mentioned 2 3/4" loads. Some questions about length mentioned a Buyer receiving 2 3/4" loads. So I took a chance...nope, 2 1/4". These will not work for me. So, I reordered a different item from the same Seller that stated 2 3/4" was received by multiple Buyers/Reviewers. If 2 1/4" was mentioned in the description for this item, I missed it as have others. A Bullet Item stating the length and weight, right at the top of he listing, would be a good idea. Otherwise, these Dummy Loads look pretty ok to me. But I will never know how they hold up since I cannot use them.

This is the first time I ever used anything like this. I got to say they do what they're supposed to do very well for dry fire practicing

Without revealing what shotgun I have, if you don't have a modern shotgun (modern as in metallurgically modern) such as an older SxS or over/under then do not dry fire this. These shells are slightly smaller than 2 3/4in shells but in a shotgun that accepts that then it's no big deal. Personally they work great for drills, ejecting, dry firing, but that's because my shotgun doesn't really have super ridiculous tight tolerances and has no issue with them. If you have an older shotgun or a shotgun that one would advise against dry firing (either because the firing pin is brittle or because it's metallugrically inferior to modern equivalents) then only use this product for ejection. If your 12ga firearm is relatively modern then you can feel fairly secure in dry firing these slightly short shells with no problem in the long term. In my experience these are great if you'd like to just run loading drills or mess around with your gun without running safety risks with live shells. A few notes: - slightly shorter than standard 2 3/4in shells - ejects well out of my tested shotguns (nothing rare, nothing older than 30 years) - good for drills - good for messing with shotgun in a safe manner