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Primer size
#7122343
03/25/18 04:16 PM
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Joined: Jun 2015
Posts: 5,175
scottfromdallas
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What are the advantages of using 308 small primer brass? I've heard theoretically less SD. Is there a burn rate where small works better? If you do go small, is it better to use small magnum to ensure proper ignition?
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Re: Primer size
[Re: scottfromdallas]
#7122350
03/25/18 04:23 PM
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Joined: Jun 2015
Posts: 5,175
scottfromdallas
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Just realized this probably belongs in reloading section.
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Re: Primer size
[Re: scottfromdallas]
#7122386
03/25/18 05:30 PM
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Joined: Nov 2007
Posts: 9,523
RiverRider
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I suspect the main advantage of small primer pockets is strength of the case head and longevity of brass. If ignition is sufficient...who knows. If it works for the Creedmoor, I would imagine it would work fine for the .308 W.
"Arguing with you always makes me thirsty." -Augustus McRae
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Re: Primer size
[Re: RiverRider]
#7122404
03/25/18 05:49 PM
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Joined: Dec 2008
Posts: 41,173
J.G.
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I suspect the main advantage of small primer pockets is strength of the case head and longevity of brass. If ignition is sufficient...who knows. If it works for the Creedmoor, I would imagine it would work fine for the .308 W. +1
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Re: Primer size
[Re: scottfromdallas]
#7122653
03/25/18 10:37 PM
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Joined: Jun 2015
Posts: 5,175
scottfromdallas
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Thanks brothers. I was looking at Alpha brass and all they had in stock was small primer which I've never tried. I may buy some and see how it does.
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Re: Primer size
[Re: scottfromdallas]
#7122654
03/25/18 10:38 PM
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Joined: Dec 2008
Posts: 41,173
J.G.
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You will need a small primer firing pin, in the bolt.
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Re: Primer size
[Re: scottfromdallas]
#7122840
03/26/18 01:19 AM
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Joined: Jun 2015
Posts: 5,175
scottfromdallas
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Interesting. Thanks. If I switch my firing pin to a small, would it still work OK on large rifle primers?
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Re: Primer size
[Re: scottfromdallas]
#7122851
03/26/18 01:26 AM
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Joined: Nov 2011
Posts: 3,638
DStroud
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I would try your existing firing first of course. My 22 Creedmoor works fine with a standard firing pin on both LR and SR but I use tough primers.
"Anyone taking up handloading necessarily plays with unknown factors and takes chances. But so does anyone who drives a car,goes to a cocktail party,eats in a restaurant,or gets married."
Jack O'Connor 1963
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Re: Primer size
[Re: scottfromdallas]
#7122866
03/26/18 01:33 AM
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Joined: Jun 2015
Posts: 5,175
scottfromdallas
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Sounds good. I mostly have CCI 41 so I bet they would be fine.
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Re: Primer size
[Re: scottfromdallas]
#7123098
03/26/18 12:44 PM
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Joined: Jun 2011
Posts: 33,977
Buzzsaw
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Scott look at Copper Creek shooting they may have some regular primer in stock.
Alpha has really taken off and cant keep up with demand. Yes, I bought 100 6.5 Creedmoor and it is really nice.
I don't know if its any nicer than Norma or lapua. I know I'm not good enough to tell the difference.
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Re: Primer size
[Re: scottfromdallas]
#7123104
03/26/18 12:48 PM
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Joined: Apr 2010
Posts: 6,219
dee
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Used to be an article by the amu that showed smaller sd but it's long gone. Another article by German Salazar showing no difference when testing flash pattern from ppc flash hole vs normal size.
Most seem to think that in extreme low temperatures the small rifle/ppc flash hole like lapua uses causes ignition problems.
"A vote is like a rifle; it's usefulness depends on the character of the user" Theodore Roosevelt
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Re: Primer size
[Re: scottfromdallas]
#7123107
03/26/18 12:50 PM
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Joined: Apr 2010
Posts: 6,219
dee
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I'll add that I've ran lapua palma brass on my 7mm-08ai for a good while with zero ignition problems in all weather.
"A vote is like a rifle; it's usefulness depends on the character of the user" Theodore Roosevelt
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Re: Primer size
[Re: scottfromdallas]
#7123186
03/26/18 02:06 PM
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Joined: Nov 2007
Posts: 9,523
RiverRider
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What primer have you used. Dee?
"Arguing with you always makes me thirsty." -Augustus McRae
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Re: Primer size
[Re: scottfromdallas]
#7123194
03/26/18 02:14 PM
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Joined: Apr 2010
Posts: 6,219
dee
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Cci standard and match along with federal gmm.
"A vote is like a rifle; it's usefulness depends on the character of the user" Theodore Roosevelt
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Re: Primer size
[Re: Buzzsaw]
#7124002
03/27/18 01:11 AM
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Joined: Jun 2015
Posts: 5,175
scottfromdallas
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Scott look at Copper Creek shooting they may have some regular primer in stock.
Alpha has really taken off and cant keep up with demand. Yes, I bought 100 6.5 Creedmoor and it is really nice.
I don't know if its any nicer than Norma or lapua. I know I'm not good enough to tell the difference. But then I wouldn't get to tinker with small primer brass!
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