Peterson 6.5 Creedmore Palma Brass

[260284]

I just received 200 of Peterson's 6.5 Palma brass. Very impressed with the way they come packaged. They are in Peterson marked 50 round flip top boxes with foam and a piece of non tarnish paper on top. They have been annealed and weigh in the 173 gr range. I haven't switched from my 260 barrel yet, but I will post my load results when I do. I am going to use 4451, Nosler 140 RDFs, and CCI 450s. I have a new 20" Tikka CTR take off barrel and a 23.5" Bartlein medium Palma to use for hunting and matches. I should be able to swap barrels in 30 minutes or less.

 

[Erud]

If the brass is for 6.5 Creedmoor, what does "Palma" have to do with it? Those 2 things don't really go together.

 

[Steel head]

Probably because of the small rifle primer like Palma 308 hence Palma 6.5 creedmor.

 

[Milo 2.5]

Probably because of the small rifle primer like Palma 308 hence Palma 6.5 creedmor.

Still makes no sense?

 

[Steel head]

LOL

 

[Erud]

Yeah, makes no sense. While Lapua Palma brass does have a small primer pocket, That's nat what makes it "Palma" brass. What makes it "Palma" is that it is chambered in .308, which is the Palma cartridge.

 

[260284]

If the brass is for 6.5 Creedmoor, what does "Palma" have to do with it? Those 2 things don't really go together.

They have it labeled Palma on their web site. I don't care what they call it if it has the small rifle primer. They are making the same for 260 also.

 

[Milo 2.5]

They have it labeled Palma on their web site. I don't care what they call it if it has the small rifle primer. They are making the same for 260 also.

Alpha makes the same thing, you should concern yourself with the reduced capacity of both brands.

 

[JWG284]

Alpha makes the same thing, you should concern yourself with the reduced capacity of both brands.

Reduced case capacity vs Lapua?

 

[Milo 2.5]

Reduced case capacity vs Lapua?

Just weigh against each other, reduce load accordingly.

 

[260284]

I have been breaking in my new 23.5" Bartlein 6.5 Creedmoor barrel in with the Peterson SRP brass, CCI 450, RE 16, using some Hornady 140 HPBT and 140 AMax that I have on hand. I started at 40.5 grains and worked up to 42.2. I have 75 rounds down it so far with 5 of thos being factory Prime. The barrel is definately speeding up. Five shots each, TBAC 30 P1 w/ Magneto Speed.
Not really shooting for groups, just trying to get barrel broke in.

All loads are RE16 and CCI 450s.

New Peterson Brass w/.004 neck tension .289 bushing
40.5
140 HPBT
2672 fps
sd 27

40.8
140 HPBT
2710 fps
sd 5

41.0
140 HPBT
2720 fps
sd 9

41.3
140 HPBT
2738
sd 14

41.6
140 HPBT
2757
sd 15

Factory Prime
2863 fps
sd 15

The above loads were for the most part under 1 moa, some 1/2 moa. The factory Prime was above 1 moa. I shot some more with the 140 AMax with similar velocities, but they were 1.5-2 moa.

 

[260284]

I got out and shot 35 more rounds yesterday evening with A-max and some 143 ELD-x. I bought a new .291 bushing for a .002" neck tension. Results below.

All Peterson brass, RE16, CCI 450s, .020 jump on all loads. Loads with a * are once fired brass.

140 Amax
41.8
2797
11 sd

143 ELDx*
41.4
2749
11 sd

143 ELDx*
41.6
2756
sd 8

140 Amax .004 neck tension
41.6
2761
9 sd

140 Amax
42.0 some swipe visible on brass head
2817
4 sd

140 Amax
42.2 some swipe on brass head, 1 showing slight ejector mark
2847
4 sd

140 Amax*
41.6
2813 52 fps increase over the above 41.6 load that used new brass with .004 neck tension. Either the barrel is speeding up, or the neck tension, not sure which.
7 sd

The ELDx loads were both .6" to .7", but there was no wind and the orange dot was a blur due to heavy mirage. There was little to no verticle dispersion to either group.

The most accurate Amax loads were the fastest ones and they both looked like separate 2 and 3 shot groups about 3/4" apart.

The low case capacity and RE 16 is giving me more velocity than what I expected with less than 42 grains of powder.

I am going to load some more ELDx with 41.8 and see how they shoot. I might deer hunt with the Bartlien rather than the 20" factory barrel.

 

[canezach]

Alpha makes the same thing, you should concern yourself with the reduced capacity of both brands.

This! I use Alpha and my load is a full 2 grains lower when compared to Hornady brass

 

[260284]

This! I use Alpha and my load is a full 2 grains lower when compared to Hornady brass

If I can get good velocity with less powder, I am good with this. That is why I started my loads at 40.5. I had dumped 44 gr of H4350 in Peterson, Lapua, and Prime brass to compare how full they were. Peterson definately has less internal volume than Lapua. I have not tried to find out the H2O capacity of any brass yet.

I know that my son got better velocity with Prime brass over Hornady with the same charge.

 

[canezach]

If I can get good velocity with less powder, I am good with this. That is why I started my loads at 40.5. I had dumped 44 gr of H4350 in Peterson, Lapua, and Prime brass to compare how full they were. Peterson definately has less internal volume than Lapua. I have not tried to find out the H2O capacity of any brass yet.

I know that my son got better velocity with Prime brass over Hornady with the same charge.

He should. I have to reduce my load a bit (0.6 grains, off the top of my head) to achieve roughly the same velocity as Hornady.

 

[rduckwor]

He should. I have to reduce my load a bit (0.6 grains, off the top of my head) to achieve roughly the same velocity as Hornady.

Yep. I'm down 0.5 grain in Prime versus Hornady.

RMD