I assume you are taking the **** when saying you need to pick them up and put in the compost heap
Bio compostable means that they will break down in the soil and leaf matter. Composting is a natural process that happens to organic matter in the soil, not just in a compost heap.
Straw that is ploughed into soil, or leaves falling from trees compost down over a matter of a few months. It doesn’t disappear immediately. Many of these new bio wads are made from natural starch (mostly from corn) and fibrous materials, so add moisture, soil microbes and oxygen and they break down just like straw or a leaf. If they are eaten by an animal, then they will be digested in the stomach.
Original Plastic wads are nylon type materials that take a very long time to degrade.
However on a managed clay ground where the grass is cut like that of a golf course the process you suggest does not happen, they are not in the soil, but on top, hence the use of fibre wads. Plus bio-compostable may mean in an industrial composting process, standard EN 13432 that a lot claim their wads meet.
I have various so called biodegradable wads sitting on soil exposed to the weather and they have yet to decompose in many months, even bioammo and Hull state their wads can take a long time to decompose.
Any plastic is by definition a long-chain polymer and breaking the chain is the issue, it a complex problem to solve hence the packaging industry worth many more billions than the shooting industry has yet to satisfactory do so, hence shops returning to paper bags and cardboard packaging.
I suggest to actually handle some of the wads starch was dropped years ago, they are tough stuff need to be to stop steel pellets penetrating through to the barrel. The only viable replacement to fibre wads are the water soluble or cardboard tube type.
From Bioammo
For a material to be biodegradable, there must be an organism that can feed on it and transform it into biomass. No organism has evolved to date to be able to swallow synthetic polymers such as plastic or PVA and what is currently being done is to deceive the market and the end user, who are very lost in this matter.
Why are there brands that use this material? Simply because they have no other solution.
Magic does not exist. There is no material that supports the pressure of a shot, that does not contaminate and that also disappears in hours.
For example, cardboard cartridges are an equally valid solution as Bioammo's since there are bacteria that feed on cellulose and convert it into biomass. How long does this phenomenon take to occur? It just depends on the level of bacteria. In Spain, for example, a Bioammo case at ground level could take up to 2 years to disappear. This process is greatly accelerated in environments with a higher level of bacteria such as a landfill or locations with more humidity. The exact time? As I have already told you, it depends on many factors.
Every natural process takes time to develop. Our components don't disappear that fast. What I can assure you is that they are totally compatible with life.
Best regards
BioAmmo
Ctra. Santa Maria la Real de Nieva-Nava de la Asunción.
SG 342, km 44. Santa María la Real de Nieva.
40440 - Segovia, España.