25 Creedmoor (Help Please)

Flea21

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I have one being built at LongRifles currently. That being said, I want to find a good source to do some reloading for thiis round.

Unfortunately, its not in quickload or any of the manuals I have either.

Can anyone steer me in the right direction? Thanks in advance.
 

Supersubes

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    What bullet? It uses all the same powders and primers as a regular creedmoor. Most guys are shooting 135 berger LRHT’s, since the BJ 131’s arent available.
     

    canezach

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    I'm assuming you're looking for load data so the published load data for a 6.5 Creedmoor loaded with 130 grain bullets is a good starting point. Powders are mainly H4350 and Reloder 16 with my preference going to RL16 since it offers higher velocities at the same charge weight as H4350, but really any powder in the 4350 range will do. I've used both the Blackjack 131 and the Berger 135 and find both to be fine bullets. I have found, as have other shooters, the Blackjack to be more sensitive to seating depths than the Berger.

    Edit: Just found a pic on my phone from load dev using the 131 and Starline brass. I settled on 42.2 grains of Reloder 16 with Federal Gold Medal Match small rifle primers which gives me an average MV of 2974 out of a 26" barrel for my Desert Tech. I am over book max, so this is purely for reference and discussion. Use caution, work your way up in charge weights, start 10% below, etc
     
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    vivdav

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    My experience is almost exactly as canezach. 42.6 Reloader 16 in a 24" barrel and using 131 blackjacks. Switching to a 22" barrel now with 135 Bergers for hunting in a Proof carbon barrel. Pretty high pressure but good velocity and spectacular accuracy and neat round to a thousand. More recoil than I like for PRS but great hunting round.
     

    Flea21

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    I have a ton of 135rgr Berger Hybrids, Peterson 25CM Brass, CCI Primers and H4350 Powder

    I'm not looking for someones load data im more looking for something I can reference like a book or application. I have QuickLoad but they don't support this round yet. Same goes for pretty much every manual out there as well.
     
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    vivdav

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    I have never seen that technical data since it is still new and I guess a wildcat. I have used the 25 creedmoor Facebook forum for better or worse and fellow prs competitors. I have burned up 2 barrels so far and graduated to a proof carbon for my 3rd for strictly hunting. It's a great deer and pig round and used by a lot of folks best I can gather
     
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    4O6shootist

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    I have 3 25cm barrels. All running peterson srp brass. The upper node with 135s is around 2890 fps in all 3 barrels. With the 131 blackjack(ran out a while ago) I ran 2930 all using rl16. I switched to a lower node at 2850 and it ahot the best here. I haven't spent a lot of time with the 135s yet, but ladder testing showed they liked 2890 at 500y,very tight vertical within a 0.4gr 30fps window. The 25cm does have a fair bit more recoil for positional shooting vs a br variant or gt. It excels in field matches that offer more rear support in most stages. H4350 will likely have velocity nodes at similar speeds with a lil less powder, but a lot cleaner burn. I love the performance and temp stability of 16, but it's prone to heavy carbon build up in my experience.
     
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    warddanger

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    I am running a 22'' 25 CM proof as well, suppressed. Not getting great velocity (2700 ish) but i also haven't really run the charges up to see what she can handle. I did 41 grains of h4350, it grouped well so i just ran with it. I have been shooting pigs and steel with it, just messing around at the ranch. I need to hunker down and do some proper load developing but, if it aint broke dont fix it, I guess. I just got a 26'' barrel that im interested to see if that speeds things up from a 22 '' - disclaimer, if you haven't figured it out yet, i dont know what im talking about.
     

    Petersen

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    I have 50 rounds through mine. I did the break in with Berger 135s and hybrid100v. 43 grains fills up the peterson brass pretty well. Velocity 2840-2850 It's a brux 1-8 twist 24 inch prefit from SPR. I have several hundred of the Berger 133s, going to try those next with reloader 16.
     

    CaptArab

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    Might be worth shooting an email to Berger.

    Edit- bet OPs got it figured out by now 😂
     

    Yoteski

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    Running 40.9 grains of H4350 at about 2825-2830, 24" Proof CF barrel, 135 hybrids. They hammer at this node.
    400 yards
    20220607_113749.jpg


    600 yards
    20220607_113937.jpg
     

    Txhillbilly

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    I haven't had much luck with Reloader 16 in mine with the 135gr Berger's. Best group was a .521" at .010" off the lands. Tested today from touching the lands to a .070" jump, and all the groups sucked.
    I've got plenty of other powder's to use, but was hoping the RL 16 would work since I don't use it with anything else currently.
     

    4O6shootist

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    I haven't had much luck with Reloader 16 in mine with the 135gr Berger's. Best group was a .521" at .010" off the lands. Tested today from touching the lands to a .070" jump, and all the groups sucked.
    I've got plenty of other powder's to use, but was hoping the RL 16 would work since I don't use it with anything else currently.
    Man, I struggled with mine for a bit, found 1k neck tension really shrunk groups. Worth a shot? I ran rl16 in mine at 2850 and 2920 with 131s. 135s look to prefer 2890 in this particular barrel.
     
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    Reaper 31

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    I'm tossing around ideas and thinking of a 25CM also. What is the COAL with the 131BJ or the 133/135 Berger? If I can set the bullet long enough I might rebarrel my old 700 long action. It's set up like the m24 so feeding a short action cartridge shouldn't be a problem.
    Thanks
     

    Yoteski

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    I'm tossing around ideas and thinking of a 25CM also. What is the COAL with the 131BJ or the 133/135 Berger? If I can set the bullet long enough I might rebarrel my old 700 long action. It's set up like the m24 so feeding a short action cartridge shouldn't be a problem.
    Thanks

    You'll be fine. My COAL is roughly 2.840 although I seat off BTO. Plenty of mag room.
     

    Flea21

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    Good to know... I plan to use 135 Bergers in my build and will be shooting from a mag as well.
     

    triumph001

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    Anyone have load info for the 133 and 135s using StaBall ?

    Bout all you are probably going to find. Wildcats require an adventurous heart. Start at the low end and let us know how it goes.


     

    Flea21

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    I got the update from LRI… It’s shipping this week to Manners to put the finishing touches on its stock and then I’ll sometime the following week, God willing. 😃
     

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    Flea21

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    Okay, the rifle should be in my hands in about a week. In the meantime, I fully prepped some new Peterson 25 Creedmoor brass. Its probably overkill but I always like to be able to fine tune and measure as much as possible to eliminate as many variables as I can. So I did the following...
    • Turned the necks to 0.015"
    • Annealed using a Giraud Annealer
    • FL resized with a Redding Type S Bushing Die with a .283 Neck Bushing and bumped the shoulders back .0005 so theyre at 1.151"
    • Mandrel expanded the necks to .255"
    • Uniformed the primer pockets
    • Chamferred the primer pockets
    • De-burred the flash holes
    • Chamferred and De-Burred the case necks
    • Finally I started seating primers and those are set at .003 below flush
    Now its time for powder and projectile. The dilemma still lies at where I plan to start and how high I plan to go. Initially, I was thinking 40.0grs of H4350 and work up in .03gr increments to 42.7 or 43.0grs (The last two might be on the edge but I have nothing to reference at the moment being there's no manuals and QuickLOAD still doesn't have an update for this caliber yet so if I go there, I'll definitely proceed with extreme caution upon getting close to those last few loads).

    I'm curious what y'all have to say about my load development plans. Am I starting too low out of caution or not low enough? Also, How many rounds per load is an acceptable load development? (I was thinking 5 per, unless that's a waste.
     

    Reaper 31

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    Out of curiosity why did you anneal and size the new brass?
    As far as powder charge starting low and working up is best practice. I've been using the bullet jam - .20 thousands as COAL for years and finding the velocity node first then playing with the seating depth after.
     

    abn31c

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    Okay, the rifle should be in my hands in about a week. In the meantime, I fully prepped some new Peterson 25 Creedmoor brass. Its probably overkill but I always like to be able to fine tune and measure as much as possible to eliminate as many variables as I can. So I did the following...
    • Turned the necks to 0.015"
    • Annealed using a Giraud Annealer
    • FL resized with a Redding Type S Bushing Die with a .283 Neck Bushing and bumped the shoulders back .0005 so theyre at 1.151"
    • Mandrel expanded the necks to .255"
    • Uniformed the primer pockets
    • Chamferred the primer pockets
    • De-burred the flash holes
    • Chamferred and De-Burred the case necks
    • Finally I started seating primers and those are set at .003 below flush
    Now its time for powder and projectile. The dilemma still lies at where I plan to start and how high I plan to go. Initially, I was thinking 40.0grs of H4350 and work up in .03gr increments to 42.7 or 43.0grs (The last two might be on the edge but I have nothing to reference at the moment being there's no manuals and QuickLOAD still doesn't have an update for this caliber yet so if I go there, I'll definitely proceed with extreme caution upon getting close to those last few loads).

    I'm curious what y'all have to say about my load development plans. Am I starting too low out of caution or not low enough? Also, How many rounds per load is an acceptable load development? (I was thinking 5 per, unless that's a waste.
    I found pressure @41.5 h4350, berger 135, Pete brass. Running 40.8 rl16 2750 fps, 21" Helix6.
     

    Flea21

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    Out of curiosity why did you anneal and size the new brass?
    As far as powder charge starting low and working up is best practice. I've been using the bullet jam - .20 thousands as COAL for years and finding the velocity node first then playing with the seating depth after.
    I always anneal after turning necks. And after I anneal, I always FL resize the brass to work it a little. This is more of a habit of mine and not necessarily something that is proven to give a better result down range.
     
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    Reaper 31

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    Gotcha. I'm planning on using StaBall with the 133gr Bergers. Sent out the receiver to PVA and got it back about 2 weeks ago. Will post some pictures little later. The dude with Midwest Long Range (YouTube) was getting about 2930~ or so with his 25 and the 133 berger. Can't remember the specs of the rifle.
     

    4O6shootist

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    Curios what the neck size of reamer is? 0.015 nk brass gives 287 loaded diameter. Most 25cm reamers are 290, my personal reamer is 291, necked down lapua, alpha and peterson have all ben right at 286 loaded diameter in my experience. My lot of peterson is about 4 years old though.
     

    Flea21

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    Curios what the neck size of reamer is? 0.015 nk brass gives 287 loaded diameter. Most 25cm reamers are 290, my personal reamer is 291, necked down lapua, alpha and peterson have all ben right at 286 loaded diameter in my experience. My lot of peterson is about 4 years old though.
    I don’t have that information, whatever LRI uses.. I’ll know when it arrives here because I had them test fire it and then I can measure those cases. My Peterson brass was around .01480s to .0160s so I just cleaned them up so that they’re more concentric.. it wasn’t to turn to a specific number for specific reasons, it was simply to have more consistent necks is all.
     
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    Flea21

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    Well, it’s back.. all I have to do is get to my FFL to pick it up. I’m still figuring out where to start on load development but I’m thinking 38.0grs of H4350 bumping up in 0.2gr steps to 38.80grs and see what I find. I haven’t dropped the powder yet because I want to be certain that’s what I’m doing but for now at least I have some cool fun porn to share! 😝
    85A31770-BB37-4FBE-B96E-FFF87695035A.jpeg
     

    brianf

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    Well, it’s back.. all I have to do is get to my FFL to pick it up. I’m still figuring out where to start on load development but I’m thinking 38.0grs of H4350 bumping up in 0.2gr steps to 38.80grs and see what I find. I haven’t dropped the powder yet because I want to be certain that’s what I’m doing but for now at least I have some cool fun porn to share! 😝View attachment 7958344
    what stock is that, drawing a blank?

    thanks
     

    Reaper 31

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    Here is my current load development with 133 Bergers on a 23" Rock Creek with a Q Half Nelson can. I went with a 23" as a happy medium to keep a can on their for hunting. I meticulously weighed every charge with my A&D to get the best data possible. The groups began to tighten up as the charges got higher but nothing worth posting as of now. I will run up the charges a bit more until I get pressure signs and also try some H4350 to see If i can get the speed up. I'm not sure what reamer was used but it was chambered by Patriot Valley Arms.

    All cases where ran through 21st Century .256 expander mandrel.
    6.5 Staball New Peterson 25CM LRP; Fed 210New Peterson 6mm SRP; CCI 400
    39.626032674
    39.8 26222605
    40.026202660
    40.226602626
    40.426722658
    40.626952680
    40.826842680
    41.027122686
    41.227352690
    41.427332702
    41.627532723
     
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