D&L Sports™, Inc.
 
Make Your Pistol Ammo More Durable
D&L Sports™ / Spec-Ops Tactical Sling
Back in the days when Tommy Guns were much more common, ammo manufacturers made their ammunition more durable in order to withstand the slam cycling of the Thompson SMG without allowing the bullet to push back in the cartridge case. When a bullet pushes back in the case during the feeding cycle, it commonly causes a stoppage in firing of the firearm. These stoppages are irritating to the plinker, and could be deadly to the defensive shooter. In situations where only partial bullet set back occurred, the cartridge may still feed, but the firing pressure is increased, possibly to the point of case rupture, another dangerous situation for the shooter, and a very serious stoppage or breakage of the firearm can occur (and a good reason to always wear your safety glasses).
The wise solution ammo manufacturers came up with to stop bullet set back during feeding was to form an internal ledge inside the cartridge case to stop bullet set back when the bullet nose slammed into the feed ramp. A great solution to a serious problem, but it did require another stage in the ammo manufacturing process. This
 
added to manufacturing costs in terms of both time and money. The short sighted solution by budget minded businessmen was to eliminate the anti bullet set back ledging stage in ammo manufacture. It probably saved them some time and money, but left shooters with less durable ammo. At this point in history, few, if any major ammo manufacturers offer this feature in their loaded ammo, including their lines of premium "defense" ammo.
This is a big problem for serious shooters, especially police, military, and defensive shooters. Often times firearms will be loaded and unloaded with the same top two cartridges from the magazine, thus causing small increments of bullet set back with each chambering. This often goes unnoticed and causes the shooter to be carrying the first two cartridges in their defensive firearm which may fail to feed when needed, or fire with dangerously increased pressure. An anti set back ledge inside the cartridge case provides resistance to this problem.
The anti set back ledge is such an important feature in creating reliable/durable ammo, that a modern solution had to be found which would allow serious shooters to incorporate the ledge into ammo that was already loaded. The solution is here in the form of a compact, heavy duty ledging machine suited to 45 ACP ammo.
Once the machine is properly adjusted, and the adjustments are locked in place, simply feed loaded cartridges into one side of the electric powered machine and they rotate through, and come out the far side properly ledged. 50 rounds can be done in about 5 minutes.
A must have for enhancing defense pistol ammo.
Prices Available On Request
 

 
( Posted by veteran firearms instructor John Farnum )
Problems associated with repeated (usually unnecessary) loading and unloading of carry pistols, particularly where the same round is loaded, subsequently removed from the chamber, only to be loaded again:
When you load and unload the same round multiple times, at least two bad things are going to happen:
1) From repeated contact with the feed-ramp, rounds will eventually experience "bullet set-back." This phenomenon can usually be detected during close examination of the individual cartridge in question.
2) From repeated impacts with the bolt-face, the primer "pellet" within the primer-cup can fracture and subsequently become dislodged. Unlike the above, this phenomenon is not at all discernable via external inspection!
The former situation yields a cartridge that will not feed reliably, often not at all, as exposed case-rim will catch on the base of the pistol's feed-ramp. Either way, any cartridge with visible set-back should not be fired, as dangerous over-pressure can occur due to compressed propellant.
The latter is far more treacherous, as dislodged primer compound cannot be detected from external inspection. The round looks normal and will chamber normally, but will likely not fire at all. It will be a "dud."
So, what to do?
 
When your routine is, upon arrival at home, to eject your pistol's chambered round and then store the weapon. Then, upon returning to duty, chamber the top round in your primary magazine, and take the previously-ejected round and put in back into the same magazine. Those two rounds will be repeatedly cycled and re-cycled, as described above.
You need to stop doing that!
A superior alternative is to leave the pistol loaded, and then store it in a locked container, eliminating the repeated loading/unloading routine described above. In military garrisons, there is endless, mostly unnecessary, loading and unloading of pistols. The vast majority can be eliminated by simply leaving the pistol loaded and in its holster, with its bearer, not handling it at all. Unnecessary gun-handling generates NDs, as well as ammunition issues!
Even so, all carry ammunition needs to be carefully inspected before being inserted into magazines. In addition, all carry ammunition needs to be routinely consumed during normal training, and replaced with new ammunition, every few months, certainly no less often than once a year. That way, you'll always be carrying fresh ammunition.
The two dangerous situations mentioned above are not theoretical. They physically happen often enough to have been well-noted within many departments. And, while neither can ever be eliminated completely, there is no point in begging the question with poor routines we now know are the primary cause.
- John Farnum / Firearms Instructor
 
 

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