I had a 300 blackout handi rifle sent to David white to have a counter bore cut so i could use 357 magnum brass for a rimmed 300 blackout, it sizes in the 300 blk dies,with a short neck for heavy subsonic bullets, 360 dan wesson brass gives full size 300 blk rimmed brass. I was wondering how close in performance the 30-357 would be to the 300 Gnr, with light 30 cal bullets 110 dr, 125 gr etc , possible in a Blackhawk conversion? Think it would be neat to have to go along with a rifle in the same caliber.
Thanks guys
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30-357
- Derek, 2018-07-28, 08:54
- you are asking about a cartridge that already exists - Gary Reeder, 2018-07-28, 23:11
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in a revolver the 300 GNR with a 110 grain bullet will do
- Gary Reeder, 2018-07-28, 09:46
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Isn't the new .321 GNR a ".308-.357"?
- WB, 2018-07-28, 16:36
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30-357
- Derek, 2018-07-28, 19:22
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the difference is about 20 years and almost 1000 fps
- Gary Reeder, 2018-07-28, 21:42
- 321 - Derek, 2018-07-29, 05:11
- The capacity of the .300 GNR is a little over 20+ gr. - WB, 2018-07-28, 19:49
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the difference is about 20 years and almost 1000 fps
- Gary Reeder, 2018-07-28, 21:42
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30-357
- Derek, 2018-07-28, 19:22
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Isn't the new .321 GNR a ".308-.357"?
- WB, 2018-07-28, 16:36