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Maximum CBTO in my rifle

Old 04-04-2022, 04:28 AM
Thread Starter
Join Date: Oct 2021
Location: USA
Posts: 11
Default Maximum CBTO in my rifle

I measured the maximum CBTO in my rifle, but I canít seat the bullet that long because of my magazine length. What is the solution for this.
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Old 04-04-2022, 12:00 PM
Nontypical Buck
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Join Date: Oct 2009
Location: Kansas
Posts: 3,913

Itís super common to have magazine box length be shorter than the chamber length to the lands. Most of us simply choose a bullet which tolerates jump and load to magazine length. The other option within that barrel is to port drop your rounds and single feed - turning the rifle, functionally, into a single shot. A third option MAY be to convert to a longer mag box, or DBM which offers a greater COAL tolerance. The fourth option you have would be to rebarrel the rifle, or have your barrel set back and rechambered to shorten your chamber length to match your mag box length with your desired bullets.
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Old 04-06-2022, 02:04 PM
Nontypical Buck
Join Date: Feb 2003
Location: Eastern wv
Posts: 3,698

what chambering? some cartridges are designed to have freebore in the chamber to give higher velocity without excessive pressure.
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