freebore

  1. 223 rem chamber freebore/throat lengths

    Hey, seems to be that freebores of 223 rem bolt guns are not available information from gun manufacturers. Apparently freebore/throat length affects pressure of cartridge and I'm aiming to be able to use 5.56x45 Nato cartridges and do custom loads where longer throat adds flexibility. I'm...

  2. 6mm Creedmoor short throat? Help...

    I just built a 6 creed with a 0.109 freebore and tight neck chamber pre-fit, knowing that I would be limited to reloads and top end bullet weight of ~105gn. This is my first experience with the 6CM too. So far I'm really struggling with the load development, 87Vmax, 87BTHP and 95VLD's all...

  3. 300 WSM - Defiance XM - Freebore

    Hello All, New member here. I’ve been into precision shooting and reloading for about 15 years. All my experience has been with a GAP built 260 Rem, I’ve achieved some great accuracy and harvested some nice animals over the years. Last fall I commissioned GA to build me a 6.5 PRC on a...
  4. pertnear

    Starting Load When Freebore is Excessive

    I have a Browning 1885 High-Wall in .270 Win. I bought this rifle used & it is new to me. I've started my load development by determining the "touch point" of a 130 gr Speer SP, my favorite hunting bullet in 270 Win. I'll get a BTO measurement from this cartridge. The good thing about falling...

  5. 22 dasher freebore question for reamer

    What’s the best freebore I’m gonna get a ptg reamer if anyone can help with that as well gonna get a ptg but any help would b greatly appreciated I’m gonna b running 80 something grain Bullets in a 1-8 twist barrel thanks

  6. 6BR (BRA) with 0.104” Freebore - Does this look right?

    I’m trying to figure out if I’m crazy or not. I’m loading fireforming loads for my new 6BRA using virgin 6BR brass and 105 Hybrids. The barrel was chambered with a new JGS 6BRA reamer, 0.271” neck, 0.104” freebore. Barrel is a 0.237” Bartlein 4 groove. Using a Hornady BTO tool, I’m measuring...

  7. too much freebore??

    I just bought a brand new Christensen arms ridgeline rifle in 6.5x284. I am trying to come up with an overall length using a modified case and the hornady overall length tool. I am using 142 grain nosler accubond lr's and berger 140 grain hybrids. When the measurement is taken there is less than...

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