Weihrauch HW100 Bullpup Problems

The Weihrauch HW100 Bullpup, a renowned air rifle, has been found by some users to sometimes experience power creep. Power creep is when the rifle’s energy output increases beyond the legal limit without any external modifications. The UK laws mandate that an air rifle should not exceed a power output of 12 ft/lbs (foot-pounds) for rifles without a firearms certificate. If an air gun is found to exceed this limit, it can lead to legal consequences.

A Weihrauch HW100 Bullpup user recently encountered this issue, with their rifle registering a power output of 12.41ft/lbs, just slightly over the limit. Given the seriousness of potential legal consequences, the user urgently sought solutions to reduce the rifle’s power.

Solutions to Reduce Power

1. Hammer Spring Adjustment: One of the first methods that come to mind for many air rifle enthusiasts is adjusting the hammer spring. However, the direction to turn the hammer spring adjustment to reduce power remains a topic of debate. According to feedback, screwing it in further tends to make the hammer hit harder, passing more air, which in turn increases power. The balance between the hammer strength and regulator pressure is crucial, and both should be adjusted in tandem to get the desired results.
2. Lubrication: Another suggested remedy is lubricating the hammer to slow it down and consequently reduce the power. Lubing the hammer with a 20w50 multigrade or a similar weight oil can be effective in reducing the power by up to 30%. It is important to note that this might be a temporary solution and can be rinsed out later.
3. Pellet Choice: Using different pellets can change the power output. Lighter pellets generally produce higher velocities, which can increase the power slightly. Opting for mid-weight pellets could offer a consistent power level below the 12 ft/lbs mark.

Preventive Measures and Recommendations

1. Document Everything: If faced with a power issue, it’s advisable to document everything. Some users recommend taking photographs of your rifle before any inspections to protect against potential damage or mishandling.
2. Seek Expert Assistance: It’s crucial to reach out to experts or fellow club members for help. They might have faced similar challenges and can guide through the rectification process.
3. Legal Aid: If you’re part of an organization like BASC (British Association for Shooting and Conservation), their legal department can be immensely helpful. They can provide guidance on the legal intricacies and support during challenging times.
4. Stay Updated on Legal Changes: Laws and regulations concerning hunting and the use of air rifles are subject to change. It’s essential to stay updated on the latest changes, especially if they affect the type of shooting you’re involved in.

In conclusion, while the Weihrauch HW100 Bullpup is a respected air rifle, potential issues like power creep can arise. With the right knowledge, tools, and support from the airgun community, users can navigate these challenges and continue to enjoy their shooting experiences.