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Palma Brass

 
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  #1  
Old 05-28-2014, 01:27 PM
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Palma Brass

For you folks that have used Palma .308 brass. Did you have to add any powder to get the same groups and speed as with regular Lapua brass. What primers did you find worked best. I'm shooting the 215's and getting primer leakage and a few popped primers, so I just bought some Palma brass. Do you get similar pressure signs as with regualr brass i.e. ejector marks, clicks at top of extraction, hard bolt lift etc.
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  #2  
Old 05-28-2014, 01:49 PM
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Location: Central MT
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Re: Palma Brass

Quote:
Originally Posted by jsthntn247 View Post
For you folks that have used Palma .308 brass. Did you have to add any powder to get the same groups and speed as with regular Lapua brass. What primers did you find worked best. I'm shooting the 215's and getting primer leakage and a few popped primers, so I just bought some Palma brass. Do you get similar pressure signs as with regualr brass i.e. ejector marks, clicks at top of extraction, hard bolt lift etc.
The main reason why I will shoot Lapua Palma 308 brass is for velocity spreads after confirming velocity spreads with regular Lapua 308 brass. If the Palma spreads seem to be improving then I will use the Palma brass. In some cases, the Palma brass with the small rifle pockets showed slightly lower spreads. Iím currently using Federal 205m and have not had an issue with the primers. Loads also were similar between the Palma and regular brass using either the 210m or 205m primers. Many competitive shooters are also using Russian Tula or Wolf SRM primers with good success. CCI 450 and BR4 are another alternative. I have also had very good luck with BR4 primers in Palma brass.

Most LR primer cup thicknesses are .027Ē. If Iím not mistaken all small rifle cup thicknesses are less than this. Pressure issues with LR primers switching same load to Palma brass may not solve this problem but rather make matters worse. As always with any component change it is wise to work the loads back up.
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  #3  
Old 05-28-2014, 02:32 PM
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Re: Palma Brass

My primers were already getting loose in this brass. I was due for some new so I might as well try the palma brass out. I have some cci 450 primers on hand.
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  #4  
Old 05-28-2014, 05:34 PM
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Re: Palma Brass

The 450's should work as long as you reduce your load and work back up.

Just curious what your load was with the 215's if you don't mind sharing.
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  #5  
Old 05-30-2014, 03:59 PM
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Re: Palma Brass

Unless I'm hunting in cold weather, the Palma brass is all I care to use. Using the 205m versus the 210 large I do find that loads are slightly slower but it's not bad. Extreme spreads are lower with the small primer. With H4895 and H4350 my extreme spreads are in single digits.

If you're blowing primers running the 215s, your loads are too hot. The Palma brass can help but it's still probably too hot. Have you tried a slower powder? What is your velocity and barrel length?

I'm getting 2550'sec with the 215s over 48.0 grains of H4350 and the 205m in the Palma case. Zero pressure signs. Even using large rifle cases and primers there is zero pressure signs. They're mild to say the least. You can get enough H4350 in a 308 case to cause over pressure with 215s. I'm at 2648 with the 200 hybrid and 2601 with the 210 ALR. All with 48.0 grains and the 205m primer.
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  #6  
Old 05-30-2014, 04:09 PM
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Re: Palma Brass

42 grains of Varget at a 3.1 coal. The loads arnt hot, the pockets were too loose to begin with. When I used good brass I had no leakage or blown primer. Looks like I'm limited to 450 primers because that's all that can be had around here. I would like to try some tula or wolf 223m primers if I could find them.
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  #7  
Old 06-02-2014, 12:42 AM
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Re: Palma Brass

Shot the palma brass today. ES was extremely low 2-7 fps across all loads. The 450 primers must be as hot or hotter that wolf large rifle because 42 grains in the palma brass was 20fps faster than regular Lapua. Nodes were in the same powder ranges for both.'
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