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308 palma cases
@ 09:53 am (GMT) |
Thomas Kitchenso after i think it was Bob talking about the velocity he get using palma cases in his 358win i got wondering if there any benefits using them in other calibers?i was wondering if there would be any gain using them necked down to 243? |
Replies
@ 10:02 pm (GMT) |
Bryan WebsterRe: 308 palma casesPalma shooters using 155 grain .308 bullets and a hot load are able to push their velocities up to improved shots up to 1000 yards using these Lapua Palma brass. Papua itself indicated as per this link they may cause issues for shooting in cold weather so they do not recommend them for hunting. Down in NZ or OZ perhaps that would not be an issue. I had a look around using google and the one other thing mentioned was the ES was reduced in these loads which for fierce competitions would likely be good.http://www.westernshooter.com/2010/03/lapua-palma-308-win-small-primer-pocket.html Here is what Lapua says in their online advertising: Lapua is proud to introduce the new .308 Win. PALMA (Small Ri e Primer) case. Developed in conjunction with the US Palma team, the small ri e primer case is designed to deliver enhanced long-range accuracy for the most demanding competitive applications. Utilizing the well known consistency of the Small Ri e primers to best advantage, this combination has shown signi cantly reduced velocity spreads and standard deviations compared to .308 Win. cases using the standard large ri e primer. Translating into reduced vertical dispersion, this makes the new Lapua .308 Palma case the choice for long range competition. While testing in the hands of some of the USA’s best long range shooters, all found that use of the small primer reduced the problems of lot to lot variations commonly seen in large ri e primer. Previously, this could only be overcome by very careful testing and selection of speci c lots of primers. The case itself is drawn to Lapua’s exacting standards, and made with the highest quality materials to provide the accuracy, durability and reloadability that shooters expect. |
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@ 10:15 pm (GMT) |
Bryan WebsterRe: 308 palma casesSome more:Lapua is proud to introduce the new .308 Win. PALMA (Small Ri e Primer) case. Developed in conjunction with the US Palma team, the small ri e primer case is designed to deliver enhanced long-range accuracy for the most demanding competitive applications. Utilizing the well known consistency of the Small Ri e primers to best advantage, this combination has shown signi cantly reduced velocity spreads and standard deviations compared to .308 Win. cases using the standard large ri e primer. Translating into reduced vertical dispersion, this makes the new Lapua .308 Palma case the choice for long range competition. While testing in the hands of some of the USA’s best long range shooters, all found that use of the small primer reduced the problems of lot to lot variations commonly seen in large rife primer. Previously, this could only be overcome by very careful testing and selection of specifc lots of primers. The case itself is drawn to Lapua’s exacting standards, and made with the highest quality materials to provide the accuracy, durability and reloadability that shooters expect. Some other perceived benefits of small primer brass (although there are differing views among the shooting community on this) are that the use of a small primer can yield increased cartridge accuracy and better chronograph numbers (i.e. particularly with the “extreme spread” and “standard deviation” numbers). Testing of this new Lapua “Palma” brass by Palma shooters appears to have provided sufficient corroboration of these benefits to convince Lapua to move forward and make this brass a regular part of their product offerings. |
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