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Rating: 
Summary: Don't try this at home!
Review: As a gunsmith and machinist, I found Mr. Holmes' work rudimentary at best. His "drawings" are just that. They are poorly dimensioned and lack any reference to tolerances. Some of his dimensions are simply incorrect. His bolt design is overly complex as well as being, in my opinion, the weakest part of the rifle in terms of safety. As one who is actually building this rifle, or should I say building/re-designing this rifle, I believe most who attempt this project will quit long before completion. I have over 60 hours of machine time and re-design time in the barrel, barrel nut, barrel extension, taper sleeve and muzzle brake alone. It has required not only the use of a large metal lathe and milling machine, but also rather expensive fixtures such as a dividing head and rotary table. This is not the type project a beginner can complete at home or in the average garage shop.
Rating:
Summary: Don't try this at home!
Review: As a gunsmith and machinist, I found Mr. Holmes' work rudimentary at best. His "drawings" are just that. They are poorly dimensioned and lack any reference to tolerances. Some of his dimensions are simply incorrect. His bolt design is overly complex as well as being, in my opinion, the weakest part of the rifle in terms of safety. As one who is actually building this rifle, or should I say building/re-designing this rifle, I believe most who attempt this project will quit long before completion. I have over 60 hours of machine time and re-design time in the barrel, barrel nut, barrel extension, taper sleeve and muzzle brake alone. It has required not only the use of a large metal lathe and milling machine, but also rather expensive fixtures such as a dividing head and rotary table. This is not the type project a beginner can complete at home or in the average garage shop.
Rating:
Summary: Fifty Caliber Disaster
Review: Just got the book this morning and let me tell you that it's going back where it came from.
From a mechanical engineering designer's line of sight, the hand drawn doodles that the author dares to call drawings are terrible in quality and far from being up to ISO or ANSI standards (ever hear of CAD?). The poor dimensioning and complete lack of tolerances is highly concerning. The bolt and muzzle brake designs are equaled only by his drawing ability. I'm truly surprised it even got published and that the actual gun didn't blow up in his face.
Overall review: even if you see it at a garage sale, RUN LIKE NO TOMORROW!!!
Rating: 
Summary: Big game hunters best friend.
Review: This book is extremely precise and accurate. If you have a lot of spare time and want a .50 caliber rifle to hunt those larger animals (im talkin buffalo from 150ft away with a singe shot, I have done it before with my Barrett M82A1), this book is a Godsend. I am working on another project which is takeing up my spare cash right now so I am not currently constructing one of these, but I think this is next on my list to build >:)This book has diagrams and detailed instructions on exactly what to do. You do require a little knowledge in gunsmithing but nothing that you cant learn from manuals that you can get at your local library. A great buy, I'm glad I got a copy, and you will be too whether you just want a good read or are actually going to build one ;-)
Rating:
Summary: Big game hunters best friend.
Review: This book is extremely precise and accurate. If you have a lot of spare time and want a .50 caliber rifle to hunt those larger animals (im talkin buffalo from 150ft away with a singe shot, I have done it before with my Barrett M82A1), this book is a Godsend. I am working on another project which is takeing up my spare cash right now so I am not currently constructing one of these, but I think this is next on my list to build >:) This book has diagrams and detailed instructions on exactly what to do. You do require a little knowledge in gunsmithing but nothing that you cant learn from manuals that you can get at your local library. A great buy, I'm glad I got a copy, and you will be too whether you just want a good read or are actually going to build one ;-)
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