Changing Springs and Buffers in My Beowulfs To Improve Reliability

Okay, so the last range trip went a lot better. The new Lancer L5AWM mags with Tromix followers worked great. The reliability on the pistol was coming along but not where I wanted it and the rifle was disappointing still but I knew what was going on. 7.5″ Beowulf Buffer Spring My 7.5″ Beowulf pistol … Continue reading Changing Springs and Buffers in My Beowulfs To Improve Reliability

A New .50 Beowulf Magazine Option: Lancers With Tromix Followers

I’m still experimenting with my .50 Beowulf (12.7x42mm) rifle and pistol that I have posted about previously. I wanted to find better magazine options – both in terms of looks and reliability – than my modified D&H aluminum magazines. I tried a number of different options and then happened on using Tromix followers in Lancer … Continue reading A New .50 Beowulf Magazine Option: Lancers With Tromix Followers

Building a 12.7×42 (.50 Beowulf) 7.5″ Pistol – The Wulferine: Post 3 – Handguard, Gas Tube & Brake

In the last post, I covered installing the forward assist button and the ejection port cover. In this post, we’ll proceed with installing the Midwest Industries 7″ Combat Rail, gas tube and the Satern helical muzzle brake. Special Assembly Note Here’s some hard won advice I want to share with you. When you install the … Continue reading Building a 12.7×42 (.50 Beowulf) 7.5″ Pistol – The Wulferine: Post 3 – Handguard, Gas Tube & Brake

Building a 12.7×42 (.50 Beowulf) 7.5″ Pistol – The Wulferine: Post 2 – The Forward Assist, Ejection Port Cover and First Look At The Barrel

In the last post, I gave an overview of the project and parts used. Rather than cover a lot of stuff again, here’s a link to my series of posts on building an AR Lower and rest of this post will be my covering the building of the 12.7×42 upper. Stripped Upper Receiver A Beowulf … Continue reading Building a 12.7×42 (.50 Beowulf) 7.5″ Pistol – The Wulferine: Post 2 – The Forward Assist, Ejection Port Cover and First Look At The Barrel

Building a 12.7×42 (.50 Beowulf) 7.5″ Pistol – The Wulferine: Post 1 – Planning The Parts

My friends know I am eccentric so I’ll point that out right up front. I design and build firearms that are very practical and some that are pushing the fringe. I’ve liked the .50 Beowulf cartridge (also known by it’s metric designation as 12.7x42mm). Bill Alexander designed the Beowulf to operate out a fairly standard … Continue reading Building a 12.7×42 (.50 Beowulf) 7.5″ Pistol – The Wulferine: Post 1 – Planning The Parts

What is the 12.7x42mm cartridge? Is it the same as .50 Beowulf?

The short answer is that they are the same thing. The bullet’s diameter is 0.50″ which is 12.7mm and the case length is 1.65″ or 42mm. The reason you see some vendors say they have something to sell in 12.7x42mm is they are trying to avoid a trademark problem with Alexander Arms. In other words, … Continue reading What is the 12.7x42mm cartridge? Is it the same as .50 Beowulf?

Looking for a Cool AR Rifle Project? Build a .50 Beowulf

Interest in the Beowulf round is growing as people buy the low cost 12.7×42 chambered pistols, rifles and kits. 12.7×42 is the metric designation for the Beowulf and is being used by groups wanting to avoid a trademark problem with Alexander Arms. I’ve owned two .50 Beowulf’s and my current one was built using an … Continue reading Looking for a Cool AR Rifle Project? Build a .50 Beowulf

My Favorite .50 Beowulf Muzzle Brake

I now have built my second Beowulf and guys ask me about the recoil all the time – the short answer is that it’s very manageable. With just a bit of tuning, I’d put it somewhere between a 20 and a 12 gauge shotgun shooting 2-3/4″ magnum loads. Now that there are a ton of … Continue reading My Favorite .50 Beowulf Muzzle Brake