Mike1476
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The BR-4 primers have the same cup thickness as the 450's and 41's (0.025"). They will work just fine for the 300 blackout, just be sure to start at the lower end of the powder range and work your way up...or down if you're loading subsonic. If you work up a load with the BR-4, and then switch to 450's or 41's, be sure to back off your load and work back up. Mike
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Most of these aren't absolute necessities, but can come in pretty handy: Loading blocks, bullet puller, check weights for the scale. I assume you're priming on the press, but if not, a hand primer of some ilk. My bullet and headspace comparators get a lot of use, but those aren't "have-to-haves". I could make a much longer list of things I've bought that now just collect dust. Also, plenty of ammo boxes. I like to keep my casings separated by number of firings, and these keep them clean and organized. I keep everything well labeled as well.
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Welcome from New Mexico
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We have success! Had to go up to 0.0785, but now it runs as it should. Thanks again for all of the help!
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So not this one then?
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Drill bits were finally delivered. Drilled to 0.0700, and it wouldn't lock back on an empty mag, but it would pick up the next round. Went to 0.730, and first round locked back on the empty mag, but the next three wouldn't. Brass is landing at around 4 o'clock about 8 feet away. Any issues going up to 0.760? Still haven't heard anything from JP. Thanks!
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Welcome from New Mexico.
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Welcome from New Mexico.
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Welcome from New Mexico.
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Welcome from New Mexico.
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Welcome from New Mexico.
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Welcome from New Mexico.
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Thank you very much! I’ll work up from 0.070 and post the results. I’ll also be sure to post any reply I get from JP. Thanks again!
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The gas tube is 17.25" overall, and 16.56" from the receiver end of the tube to the center of the hole at the gas block. Gas block journal is .936". I actually did start with the gas block wide open, and only backed it down initially to see if it was overgas causing the issues. I do appreciate the replies, and very much appreciate the help!
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Thanks to all for the welcome!
