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October 20, 2021, 05:09 PM | #26 |
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Very good questions--very little info out in the wild from what I'v been able to find. Slow burners like Retumbo I've seen mentioned--as well as RE 22, 26 and H1000. Also seen mention of 7828. Seems like there remains some debate as to what "ideal" powders for the cartridge are and how they behave.
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October 20, 2021, 06:21 PM | #27 |
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Out of the ones you mentioned you will probably only find 7828. Ramshot magnum should work. Are you going use 6.5 prc data to start with? I've seen the 4831's used. I couldn't get my es and sd # good with magpro in the 6.5 prc.
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October 20, 2021, 09:28 PM | #28 | |
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BTW, received a message from preferred barrel blanks that my barrel is nearing the end of production. I must say I really appreciate their periodic updates as to where the barrel is in the production process, most others will politely tell you some version of "you'll get it when you get it."
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"Everyone speaks gun."--Robert O'Neill I am NOT an expert--I do not have any formal experience or certification in firearms use or testing; use any information I post at your own risk! Last edited by stagpanther; October 20, 2021 at 09:34 PM. |
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October 21, 2021, 05:47 AM | #29 |
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Case capacity should be around 68.5gr of water.
You may want to inquire about loads on a couple of other forums. Accurate Shooter (6BR) forum, as well as Long Range Hunter. Ballistic Studies also, though they have different designations than the powder numbers we are used to. I know guys on both forums shooting the 25PRC.
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October 21, 2021, 06:48 AM | #30 | |
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The issue with the 25 vs the 6.5, as far as I can make it, is that the burn characteristics in the two cases are not necessarily transferable because of the "large volume stubbiness" of the case being necked down to a small diameter caliber. There seems to be quite a speed spread in powders I've seen mentioned used in the 25 PRC from slow big-magnum powders to faster stuff.
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"Everyone speaks gun."--Robert O'Neill I am NOT an expert--I do not have any formal experience or certification in firearms use or testing; use any information I post at your own risk! Last edited by stagpanther; October 22, 2021 at 04:52 AM. |
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October 21, 2021, 10:25 AM | #31 |
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25 PRC loaded with ram magnum and Berger 135 gr hybrid. Now all I need is a rifle.
iPhone distortion--the case does not actually bulge towards the base like that.
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"Everyone speaks gun."--Robert O'Neill I am NOT an expert--I do not have any formal experience or certification in firearms use or testing; use any information I post at your own risk! Last edited by stagpanther; October 21, 2021 at 10:34 AM. |
October 21, 2021, 04:10 PM | #32 |
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Hey Stag some Gunwerks 6.5 prc ammo showed up on GB today $775 for a 100 rounds.
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October 21, 2021, 06:04 PM | #33 |
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Sounds like a bargain!
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October 22, 2021, 06:36 AM | #34 |
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Interesting on the COAL of your cartridges!
I just did a ladder test with 120gr Partitions with RL19 in my 257 Roberts AI last weekend. COAL 2.935" for 0.020" off the lands. I have enough of the 115gr Berger VLDs to load the 257 Roberts for hunting. But not enough to do load development for the AI. I really wish Berger would do a Hybrid in 115gr!
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When our own government declares itself as "tyrannical", where does that leave us??!! "Januarary 6th insurrection". Funny, I didn't see a single piece of rope... |
October 22, 2021, 09:20 AM | #35 | |
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"Everyone speaks gun."--Robert O'Neill I am NOT an expert--I do not have any formal experience or certification in firearms use or testing; use any information I post at your own risk! |
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October 22, 2021, 11:51 AM | #36 |
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Just received notice from PBB that my barrel has shipped! That's an amazing 3 week turn around after I placed the order!
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"Everyone speaks gun."--Robert O'Neill I am NOT an expert--I do not have any formal experience or certification in firearms use or testing; use any information I post at your own risk! |
October 22, 2021, 02:47 PM | #37 |
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Oh, i've looked hard at the bullets from PVA, and Peregrine.
Unfortunately, with my 1:10 twist barrels i'm stuck with 90gr or less Mono bullets.
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When our own government declares itself as "tyrannical", where does that leave us??!! "Januarary 6th insurrection". Funny, I didn't see a single piece of rope... |
October 22, 2021, 04:43 PM | #38 |
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There is just something about short, fat rounds with steep shoulders and a small bullet in relation to the diameter of the case that makes me get all warm and fuzzy inside.
I am itching for that 6.5 PRC project of mine to come back from the Smithy, and then there is my 300 WSM that just belches power!!! |
October 22, 2021, 05:38 PM | #39 | ||
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I have a 270 WSM and it's nice--I think the idea behind the PRC is sorta like what the 6.8/270 western is to the 270 WSM; knock the shoulder back a bit so you gain more room for the longer higher BC bullets. Quote:
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"Everyone speaks gun."--Robert O'Neill I am NOT an expert--I do not have any formal experience or certification in firearms use or testing; use any information I post at your own risk! Last edited by stagpanther; October 22, 2021 at 09:58 PM. |
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October 22, 2021, 07:18 PM | #40 |
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Okay, really ignorant question: isn’t 6.5 mm already .25? How is the .25 prc different from the 6.5 prc?
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October 22, 2021, 08:16 PM | #41 |
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No the 25 is a .257 diameter bullet the 6.5 is .264.
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October 22, 2021, 10:17 PM | #42 |
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As Sako said.
That and 6.5 PRC is a standardized cartridge. 25 PRC is a wildcat. Same with 25 WSM, 25 SAUM, 25-284, 25-350 Rem Mag, 257 Roberts AI, 25 Souper, 250 Savage AI, and a host of others.
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When our own government declares itself as "tyrannical", where does that leave us??!! "Januarary 6th insurrection". Funny, I didn't see a single piece of rope... |
October 22, 2021, 10:56 PM | #43 | |
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"Everyone speaks gun."--Robert O'Neill I am NOT an expert--I do not have any formal experience or certification in firearms use or testing; use any information I post at your own risk! Last edited by stagpanther; October 22, 2021 at 11:01 PM. |
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October 23, 2021, 03:36 AM | #44 |
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October 23, 2021, 04:50 AM | #45 |
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Thanks for that old roper--gives me more information to work with. What strikes me right off the bat is how well that cartridge gets em out to 1000 yds--and it's quite a bit lower capacity than the PRC case. Couple of other factors strike me, the PRC case, which I believe was initially designed to handle pressures in the short action AR 10 platform, is rated up to around 64/65K psi whereas this SAW is down around 51K. Looking at the list of powders he used, they look similar to what I've seen people use in the 6.5/25 PRC; they sort of stray between a range of medium/slow powders like you might find in creedmoor/284/280 cartridges all the way up to slow powders for Saturn booster sized big magnum cases. I get a little nervous about unused case capacity depending upon the nature of the powder and case.
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October 23, 2021, 05:50 AM | #46 |
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Oh no--just checked on the barrel status and it has gone out USPS--their entire web system is down.
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October 23, 2021, 05:52 AM | #47 |
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The story of Savage going with the 87gr bullet & slow twist to get that first magic number of 3,000 fps is as old as the cartridge. Would things have been different had Charles Newton not caved to Savage & used the 100gr projectile as he recommended, who knows?
I thought the PRC case was the answer to the 6.5 Needmore. As in needed more velocity. Actually, Gunwerks got the people at Hornady thinking about it with the colaboration between them on the 7LRM. Gunwerks was looking for a velocity improovement over the 7mm Rem Mag, with inexpensive, readily available brass. Enter the 375 Ruger case necked down. I don't know much about the SAW, other than the military acronym for Squad Automatic Weapon. I wonder where proprietary cartridges fit into the mix? Names & cartridges of Dakota and Lazzeroni can get ones creative juices flowing. Something like a 6.53- 7.21Tomahawk. Figure out a way to get Peregrine bullets from South Africa and i'm all ears!
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When our own government declares itself as "tyrannical", where does that leave us??!! "Januarary 6th insurrection". Funny, I didn't see a single piece of rope... |
October 23, 2021, 07:33 AM | #48 |
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I have a 375 ruger--there's really nothing in common between it and the PRC other than maybe it was a convenient starting point for the convolutions that ended up being the PRC. But that does give it presumably extra strength; though I've found hornady brass to be generally a bit softer than that of premium brass makers. I'm using it because it's the only stuff I can find--and only in loaded factory ammo at that.
It seems the 120 gr on up 25 caliber bullets are really the threshold break-throughs for the "new generation" of 25 caliber rifles. The results are startling with high BC heavier bullets, they also have the advantage of modest recoil, probably of more interest to the comp crowd.
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October 23, 2021, 07:41 AM | #49 | |
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Take 303 British…. Its .311 or ~7.7mm. The standard “go to” conversion for metric to Yankee is 1mm = ~0.040”, so 6.5 x 0.040” would get you to .260. But I won’t beat a dead horse. I don’t mean to insult. I just learned this over my years of working on guns as a hobby. The Chamber marking sometimes is misleading. Stag panther, did I mention to you about 25 Creedmore to you at all?? Read about it in a magazine, it is a fat, stubby cartridge with a .257 long for caliber bullet. Only concern I have with a lot of wildcats, and even magnum cartridges to a point, is being over bore an burning tubes out. On other side of same coin, I am not shooting nearly enough rounds through a barrel to warrant worrying about it being an issue for me. If I put five boxes of shells a year through it, its a lot. |
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October 23, 2021, 11:19 AM | #50 | |
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"Everyone speaks gun."--Robert O'Neill I am NOT an expert--I do not have any formal experience or certification in firearms use or testing; use any information I post at your own risk! |
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