PRM 073 - Columbia River Arms with Carl

PRM 073 - Columbia River Arms with Carl This week Carl comes on to talk about what Columbia River Arms/Black Hole Weaponry barrels and more! Carl designed his own minimally invasive rifling and has been making barrels for a long time! This is a follow up show to the one done about a year ago and before I had a chance to try their barrels out! so far its a hammer and I'm very happy with it! it is a great show where he lets us into the world of precision rifle barrel making and gives us a heads up for what they have coming down the pipe!

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PRM 063 - Bartlein Barrels with Frank Green

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This week Frank Green comes on to discuss barrel making and barrel maintenance. Frank has a ton of knowledge when it comes to high quality rifle barrels and it was great to have him on to discuss the ins and outs of the manufacturing process! keep an eye out for the next show we do with Frank because he has so much knowledge that we ended up running out of time and are going to be setting up a second show to cover what we didn't get a chance to talk about. 

Attached is to this email is a picture of a 7mm F Class barrel I told you about. It is chambered in .284win. At 100 rounds the barrel started having accuracy issues. The picture of the barrel is at 800 rounds only. He cleaned it after every 25 rounds fired. Bore should measure .277" x .284". It now measures .279" x .2855". You can see how the bristles of the brush are dragging up the sides, over the top and down the other side of the rifling/lands. The brush is trying to rotate with the twist but doesn't always. The lands stick up so they always take the worst of the beating when it comes to cleaning damage.

you can find the link to the bore guides here http://www.accurateshooter.com/gear-reviews/lucas-custom-bore-guides/

These are links to the two videos we talk about in the show

https://www.youtube.com/watch?v=CUm_YXzJJOU

https://www.youtube.com/watch?v=0XSkhtcAL1w

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