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  1. D

    Member Link Up SHWW Group

    Thanks, I have two scopes picked out. An IOR scope that goes up to 40 power or a March scope. Ill check out the DIY thread. Thanks for the lead.
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    Member Link Up SHWW Group

    It is my own design. Its current configuration is a 20mm vulcan case necked down to shoot my custom 50 cal bullets (1100 grains). It has hydraulic extending feet that are controlled by the shooter while he is behind the rifle (Not installed yet). It also has two recoil damper systems. One at the...
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    Member Link Up SHWW Group

    Need your oppinons Hey guys, My rifle build is almost done. It is 2 years in the making. Once I finish testing this thing it will be ready for paint. I am really stuck on what color to paint my rig. Can you give any suggestions? All of my rigs are black and yes it looks good but I was...
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    690gr South African ball BC?

    I use .67
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    Gunsmithing Broken Reamer, need advice

    I was on the phone with Dave at PTG and he told me that I should just use the roughing reamer all the way in until I am ready to use the finisher. Never tried that before. Any thoughts?
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    Gunsmithing Broken Reamer, need advice

    When cutting the shoulder there were actual chip flakes. but yes just before it broke I was getting powdery chips. I didn't see any black rings, but I wasn't checking that close. And yes it was hard to get it out when it was cutting the main 1 degree angle.
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    Gunsmithing Broken Reamer, need advice

    I have heard of people having their flutes break before, but I have never seen them completely snap in two.
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    Gunsmithing Broken Reamer, need advice

    4140 at rc of approx 32
  9. D

    Gunsmithing Broken Reamer, need advice

    Ok guys I need some advice to see if I am doing anything wrong. I bought a rougher and finisher reamer from PTG and they are made of HSS. I made a forming die first and I pre drilled the chamber and then proceeded to single point the 1 degree taper until I only had a few thousandths left. I then...
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    50cal bullet design...

    Formed some cases last night. Also loaded a scrap bullet I made. The forming die I made works awesome On the picture below the case on the left is a .308 the Middle is a .50bmg and my new one on the right.
  11. D

    A minute high at 610 and 1050?

    Ill throw something else in to consider. You are using G1 bc for your calculations on a g7 bullet shape. That is why if you look at Sierra's bullet b.c chart they will usually have 3 values for different speed ranges. They give G1 instead of G7 because it is a larger number and as we all...
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    50cal bullet design...

    Sure thing 1. I am a mechanical engineer and have been a hands on guy since I could crawl. I rebuilt my first engine before I even had a license. I work in the aerospace industry and I am currently involved with the hot section of the f-35 fighter jet engine. 2. The machine shop you are...
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    50cal bullet design...

    ELR Researcher Id be happy to answer your questions 1. The "sleeve" as you call it does not touch the barrel. The barrel free floats. 2. Basically the "sleeve" just holds the bi-pod but it consists of an inner and outer sleeve. The inner sleeve is threaded to the receiver and locked into...
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    50cal bullet design...

    Thanks for the compliment. Yes you are correct I believe also that the bullet is way to big for a standard BMG. But you could shorten it up to the 750-800gr range maybe. The gun your friend has. It looks like the Anzio Ironworks rig they sell. I was originally looking at that rig but for what...
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    50cal bullet design...

    Taking overkill to a whole new level. kd185 Thank you for giving us your insight. You defiantly have experience shooting .50s. I am no expert in ballistics but I do know some. I believe in my case I am good to go. I am in no way bashing what you have said. But let me see if I can address...
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    World Record Shoot

    Still anxiously waiting for any new info.
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    50cal bullet design...

    kd185 Can you explain why it won't work. I would like to be more educated in what the key things are needed in order to make one work.
  18. D

    50cal bullet design...

    Once I have my project done I could make some 375 for you. I don't have that caliber of gun but if you want to have me make you some different versions I could.
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    World Record Shoot

    Good luck. I am glad to hear people are pushing limits. Report back with your results. We are all curious to see how it goes. By the way, I am curious why you have photos of my gun on your facebook page. I will be trying the same thing you are in about a years time or less.
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    50cal bullet design...

    Yes, there is very few choices for slower powders that can work for something that heavy. I have found a few powders that are canon extruded powders but Alliant powder will not respond to my inquires about that powder. They won't even return my e mails.
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