Looking to build a 338 Lapua Magnum. I was on Badgers site and it shows their DBM at "CIP Length" Anyone know what the max cartridge length would be? and what exactly does CIP length mean. Thanks a lot for your help
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What does "CIP Length" Mean
- Thread starter WayneHS
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Re: What does "CIP Length" Mean
From its American origins, the current .338 Lapua Magnum cartridge was developed as a joint venture between the rifle building company Accuracy International and the Finnish ammunition manufacturer Lapua (including personal communication with Malcolm Cooper, the now-deceased founder of Accuracy International). In some contrast to this, Lapua states on its website that it developed the cartridge and mentions Mr. Cooper's Accuracy International as a cooperation partner.[14] Since Mr. Cooper cannot comment on this matter it cannot be resolved.
Lapua opted to elaborately redesign the .338/416 cartridge. In the new case design, particular attention was directed toward thickening and metallurgically strengthening the case's web and sidewall immediately forward of the web. In modern solid head cases, the hardness of the brass is the major factor that determines a case's pressure limit before undergoing plastic deformation. Lapua tackled this problem by creating a hardness distribution ranging from the head and web (hard) to the mouth (soft) as well as a strengthened (thicker) case web and sidewall immediately forward of the web. This resulted in a very pressure resistant case, allowing it to operate at high pressure and come within 15 m/s (50 ft/s) of the original velocity goal. Lapua also designed a 16.2-gram (250 gr) .338 calibre Lock Base B408 full metal jacket bullet, modeled after its .30 calibre Lock Base bullet configuration. The result was the .338 Lapua Magnum cartridge which was registered with C.I.P. (Commission Internationale Permanente pour l'Epreuve des Armes à Feu Portatives) in 1989. With the procurement by the Dutch Army, the cartridge became NATO codified.
sorry, i became curious and decided to learn a little something myself. but this is all i could find. i do not know the "max cartridge length"
From its American origins, the current .338 Lapua Magnum cartridge was developed as a joint venture between the rifle building company Accuracy International and the Finnish ammunition manufacturer Lapua (including personal communication with Malcolm Cooper, the now-deceased founder of Accuracy International). In some contrast to this, Lapua states on its website that it developed the cartridge and mentions Mr. Cooper's Accuracy International as a cooperation partner.[14] Since Mr. Cooper cannot comment on this matter it cannot be resolved.
Lapua opted to elaborately redesign the .338/416 cartridge. In the new case design, particular attention was directed toward thickening and metallurgically strengthening the case's web and sidewall immediately forward of the web. In modern solid head cases, the hardness of the brass is the major factor that determines a case's pressure limit before undergoing plastic deformation. Lapua tackled this problem by creating a hardness distribution ranging from the head and web (hard) to the mouth (soft) as well as a strengthened (thicker) case web and sidewall immediately forward of the web. This resulted in a very pressure resistant case, allowing it to operate at high pressure and come within 15 m/s (50 ft/s) of the original velocity goal. Lapua also designed a 16.2-gram (250 gr) .338 calibre Lock Base B408 full metal jacket bullet, modeled after its .30 calibre Lock Base bullet configuration. The result was the .338 Lapua Magnum cartridge which was registered with C.I.P. (Commission Internationale Permanente pour l'Epreuve des Armes à Feu Portatives) in 1989. With the procurement by the Dutch Army, the cartridge became NATO codified.
sorry, i became curious and decided to learn a little something myself. but this is all i could find. i do not know the "max cartridge length"
Re: What does "CIP Length" Mean
Plain Jane 338LM is 3.600
CIP 338LM is 3.680
My understanding is SAAMI specs for 338 Lapua Magnum OAL is 3.600 inches. But CIP is the standard British load and has a longer OAL at 3.680.
Either way, a CIP mag will allow you to seat your bullets closer to the lands and increase your case capacity if you are running a compressed load and not over pressure.
Plain Jane 338LM is 3.600
CIP 338LM is 3.680
My understanding is SAAMI specs for 338 Lapua Magnum OAL is 3.600 inches. But CIP is the standard British load and has a longer OAL at 3.680.
Either way, a CIP mag will allow you to seat your bullets closer to the lands and increase your case capacity if you are running a compressed load and not over pressure.
Re: What does "CIP Length" Mean
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: brand692</div><div class="ubbcode-body">Plain Jane 338LM is 3.600
CIP 338LM is 3.680
My understanding is SAAMI specs for 338 Lapua Magnum OAL is 3.600 inches. But CIP is the standard British load and has a longer OAL at 3.680.
Either way, a CIP mag will allow you to seat your bullets closer to the lands and increase your case capacity if you are running a compressed load and not over pressure. </div></div>
much more efficient. the history was good too, but not really useful.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: brand692</div><div class="ubbcode-body">Plain Jane 338LM is 3.600
CIP 338LM is 3.680
My understanding is SAAMI specs for 338 Lapua Magnum OAL is 3.600 inches. But CIP is the standard British load and has a longer OAL at 3.680.
Either way, a CIP mag will allow you to seat your bullets closer to the lands and increase your case capacity if you are running a compressed load and not over pressure. </div></div>
much more efficient. the history was good too, but not really useful.
