Home Forums Hunting & Shooting Hunter's Campfire .257 wildcat?

Anyone know of a .257 on a shortened RUM case?

If so, what's it called?

I built a wildcat cartridge on a 204 Ruger- - - -called it the .257 Scooter. 100 grain spitzer at just under 2800 FPS.

257 FOS

Retarded

Fascinating. At one time I wanted a .22 on that case. But, now add about 1,000 feet per second and you are getting to where I want to be.

257 WSM ? .... 25-338 RUM ? 257 Nosler ? all have been done with awesome results

You forget you are asking the least wildcat savvy crew on the web ... their idea of a cool wildcat is the fkn retarded 223 AI, the idiocy of the 280 AI or the stupidity of the 338-06 .... outdated zero improvement over anything worthless crap not worthy of "wildcat" status ... pretty much the same fktards are out there hooting n hollering over the wHorenady zero ballistic improvement cartridge garbage... It's a fkn mental gundummy plague of massive stupidity, pathetic .. but sadly, expected ....

there is absofknlutely zero innovation on the 24 whore campfire regarding wildcat cartridge development

IF a fella has a cool idea ... the gundummy members promtly shiit all over him and his idea

I personally haven't done anything in .257 cal off the RUM case diameter but did one off the 338 Lapua/Norma for short actions ... smokes the 257 Wby with ease, using less powder

I have a 257 RUM that I just necked down 7mm Rum brass It is a Nasty MOFO, I shoot 80gr and 100gr Barnes TTSXs I call it my Rail Gun. I am not going to get into FPS it always causes the thread to derail "pardon the pun" but there is a is a good reason I call it that. especially when I load those 70gr Sierra Blitz Kings all three bullets I load with 100 plus grains of powder, I love any load where there is more powder weight than bullet weight.

I new a guy that had 25-300 Weatherby. He used moly coated bullets in it.

Then there is/was the Lazzeroni(?) scramjet?

Sorry, I have never worshipped at the altar of the Great God Max Velo. My journey into quarter bore land started and ended with the .25-308. Which is such a nice round that I needed not experiment further. It duplicates the Ackley 250, which he himself claimed was his best Improvement.

I have fiddled with wild kitties a few times, but when I get serious my favorite pet is the .250 Savage. Sometimes my buddy Bob argues about that, but what the hey? They always argue when I'm working up loads.

The Savage, 10 shots @ 100 yards:


Bobby replied with only 5 shots:

.257 ferguson hot tamale.
.257x7mm stw

I my friend also like the speed of lightning.

I had a 257-300 WinMag that was a nice round, as dated as they are I love belted cases. My buddy who begged me to sell it to him has never shot it I asked him why, he said he just wanted it.

What 25 caliber bullet has one so impressed that they feel if they just pushed it faster - it would be better than a comparable bullet in another caliber?

Beautiful.

The wildcat concept has such honored members as Ringman and Swamplord on its side; that tells you all you need to know of the idea of building new wildcats in 2023. Kinda like how the biggest Leupold proponents on the fire are Burns, rcmagulia, and VarmintGuy - it's a sign to anyone halfway sane to stay away from the product.

I must have over 100 barrels with Dies and tools that I have accumulated over the years, wildcats, Ackley Improved, or other variations of standard calibers. And as much as I have enjoyed this venture I would not do it today due too Component shortage, cost of blanks, gunsmith fees, ect. I will continue to shoot what I have but I am not building any new ones.

Working up wildcats was a lot of fun for a while - and good occupancy material for curious tech minds seeking diversion from the more mundane. Some uniqueness cravings seem to add to the quest. Compared to the older days, available stuff makes it more doable for many. Good exercise and enjoyment.

Then, over time and with accumulation of experience/examples/redundancy, the reality begins to take more shape and clarity.

2800 FPS was pushing the envelope on the .204 case- - - -it had a problem with blown primers, even with benchrest items, and a Greg Tannell small diameter firing pin and bolt face bushing. The whole project was an exercise in seeing just how far that little cartridge could be pushed without creating a bomb in the chamber. It dropped a little yearling white tail buck DRT at about 75 yards the first time out, though!

By "shitting all over a guy's cool idea" do you mean asking questions like how does the highlighted statement comport with the laws of physics?

Interesting and looks great

Thanks for the mention.

Although I’ve had great success with Leupold Scopes, I’m sure I could have done as well with any other quality optic.

Natural Talent works that way


To run down Swamplord’s or anyone’s wildcatting is pretty ignorant. Anytime a High BC bullet can be pushed faster, ballistics are improved

A lot of shooters don’t know this, but the faster you shoot a bullet the more the BC increases, most BC measurements are taken somewhere around 3000 fps I don’t have the number that the BC goes up with increase velocity, but it is significant I have been told by three separate bullet manufacturers, I have confirmed this myself I shooting bullets with a certain BC at a much higher velocity, and the drop at the other end, was significantly less than if the bullet had continued at it, advertised BC.

i built a 25 Creedmoor and it shoots 2 and 3`s most of the time , but for deer hunting my 257 Weatherby mag. shooting a 103 gr. Hammer bullet at around 3700 FPS works just fine for me ,its a 1/2 -3/4 inch 3 shot 100 yard rifle off a good cement bench with the right powder.

Magic, of course! I.e. a lack of pressure tested data.

That one looks like what I was seeing in my mind. Thanks for the photo.

Your question is a non sequitur. It conveys no information.

The 25 cal by far has the smallest bullet selection of all calibers up to 338, even 270 has a better selection so you have to make the best with what you have to work with. I don't see any new 25 caliber offerings anytime soon if ever. I think the last one was the 25WSSM and that was 2004 yes that's right 20 years ago, and as far as blanks I haven't seen any one stock those in a while so you might have to rechamber an existing barrels.

I have saying It has always worked for me here it goes.

"The less time a bullet spends in the wind the less it will affected by the wind The shorter the time of flight the better"

That's all I got for now.

Berger & Hornady now have 257 bullets in the over .600 BC class but to what advantage? And I'm a 25 fan.

Any neck down on a RUM is a good thing though, it can keep the barrel makers in business. Saying that is curmudgeon coming out of my old ass I guess, but otherwise what's the point? Hasn't most of it been done by now with what we got. Look at the Dakota cartridges.

Just rambling,,,,,wildcatters, Rock On!

The point of a question isn't to convey information, it's to receive it.

Look up "question" and try and understand the definition.

"And I'm a 25 fan"

Sorry but the correct accepted terminology is "I am a quarter bore fan"

Now go write that on the blackboard 100 times.

Did I just date myself?

Can you even say blackboard anymore?

It's never not funny when some internet rando tries to boost her cred by running other down.

Rick is an known in the world of long range precision shooting but some do nothing rando poster wants to seem tough by running her suck yet has never done anything in her sad life but post on the internet.

A friend of mine who is one of the top precision shooters in the country was one of the first sponsored by Blackjack Bullets when they came out with the .257 caliber 131 grain bullet.

He was shooting a 6.5-‘06 in some practical matches that don’t require barrel-burner stages.

He chambered a 25 Creedmoor and shot the 131. He said it’s like cheating. Soon, everyone was building them and kicking ass

Blackjack quit and now he shoots the 134 grain Hornady and says it’s legit.





🤣

The 250 Savage is a great little round that never gets enough credit.

During a constructive day, I ran some numbers & semi found that the 25 Creed or 25 Souper(25-308) might be the sweet spot for recoil vs. trajectory or something. At that time.


Run some numbers of your own, & you might be surprised. But the constant upgrading & release of better & better bullets makes for a tough conclusion.

A good 25 cal wildcat that is pretty straight forward and user friendly is the 257 WSM I use 270 WSM brass that I neck down. I use a gutted 270 WSM die to do a full case resize and a 25 WSSM die for the neck, shoulder, and for seating the bullet. They hold 70gr of powder once prepped so you can get 100 rounds out of a pound of powder. A full case of powder and an 87gr V Max will get you 4000 FPS rain or shine. it is a common reamer to rent.

That would be bad ass with the 134

I think he mentioned you in his post as well.

You ain’t chopped liver in the Long Range Hunting and Shooting World


Randos gotta aim high for effect

😂😂😂

Teal,

I figured out my problem. The thread is about cartridge cases and your question is about bullets. Sorry for the misunderstanding. I was not thinking about bullets, but I did some checking and think I would use a Hammer Hunter Tipped 95 grainer about 4,000 feet per second.

As GUNZO said above, the .25-308 sits in a lovely sweet spot. The .308 has the same case capacity as Ackley's famed 250 AI with much easier case forming steps.

If you have such a needy ego that your pet's velocity must exceed everybody else's pet round, go ahead and neck down a .50 BMG for all I care. Your barrel maker will be able to finance a new yacht.

I am curious why you think I want a wildcat faster than someone else's. I think Swamplord already has one that is faster than the one I want. The one I develop will fit into a Weatherby six lug ultralight. Its weight will be no more than seven pounds with a March 5-50X56. Maybe I have the Nepean complex since I am only 5'7" and 160 pounds. That doesn't change the fact I know what I want and couldn't care less what others like or don't like.

Oh, HELL! Now you've done it.

Decent cheap chronos put an end to a lot of bullschitt. Pressure Trace curves would put an end to most of the rest.

It sure seems to me folks don't know the weakest link in the rifle, cartridge, bullet is the brass case. I won't be using a pressure trace you. I work up a load till the bolt is barely sticky, then back off about a grain to look for accuracy. If is 100,000 or 50,000 makes no difference to me.

P.O. Ackley told me he ran pressure till he popped a primer. I have a friend who does that. He gets one load per brass. And he is still going.

I'm a fan of the SAUM case, so sign me up for a long throat .257 SAUM with 135gr Bergers. Give me a 32 inch barrel to do my load work up in, then rechamber to 28 inches and have a life time of shooting. Not sure at what though.
Now what to build it on? Maybe a Ruger RPR. 14-16lbs all up. Would a can be too much?
Or, maybe I could make use of all these STW cases I've got...

Rich, have you ever heard of accumulated metal stress fatigue in steel?

Did you ever wonder why SAAMI does not place maximum pressure limits at 100K PSI or 120K PSI? Ever wonder why the load manuals today do not list the same velocity for AI cartridges as PO Ackley listed in his manuals?

Yes, I have had my wild and crazy days. And I have set the bolt lugs back enough to create excessive headspace. I have expanded belted magnum brass so that it would not fit into a shell holder after one shot.

100,000 psi might not put a rifle bolt through your brain on the first shot, maybe not the 1,000'th shot. But each round fired at excessive pressure brings that day closer.

I suspect Mr Shrapnel knows something of this subject.

Wildcattin' beats watchin' TV....nuff said

Another good alternative is a 257 WinMag just use necked down 264 WinMag brass or even 7mm Rem Mag. Or you could have it chambered in 257 Weatherby and use 264 or 7mm brass. Mag brass is .50 thou shorter but grows to the full length after a couple of firings. You can load to the same specs as a WBY but the brass does not last as long as WBY brass, or you can reduce the load and extend the life of the brass, if you reduce the load by 10% usually does the trick and is still a very stout load. That is what I have allways done when there was no WBY brass to be found or did not want to pay there asking price.

He said he's trying to fit it into a six lug Weatherby. I believe that's limited to the .473" head size cartridges.

You should definitely do that...repeatedly.

Ive got a custom Shilen built Remington 788 in 257 AI. All the lugs were lapped and it is bull tough but I don't push it. Didnt have it built but got it on a trade and really can't figure out its place in the order of things. Its not quite a 25-06 and outruns the 250 Savage. Doesnt replace the .243 or the 260 Rem class either. However, it will blow 87 gr ballistic tips at 3650 and make tiny near one hole groups so I guess thats something.

I turned the rim down on a .300 Norma and then milled half of it away in the head area. I did the same with a 6.5 RPM. It has more "meat" than the Weatherby 6.5 RPM. My present 8mm Coyle is 7 Rem Mg brass with the belt turned off and the rim turned down to fit the .473" bolt face. It fires Hammer Hunter 198 grain bullets at about 3,054 feet per second.

It blows big holes in these little Western Oregon blacktail deer, so I want something smaller.

Anything a quarter bore can do, a .264 can do better. I have a custom reamer for a 6.5 Rem Mag that stretches the COAL out about 1/4 inch so a 140 grain spitzer bullet can be seated with the base even with the case taper. The round fits the magazine length and bolt stroke of a medium length Mauser action and the powder capacity is slightly more than a 6.5-06 with the bullet moved ahead that far. It's fast and accurate, and the bullet selection is much better than the .257. If I ever run out of the 200+ new cases I have on hand at the moment, 7 Mag brass can be annealed and resized to fit.

If you are limited to a .473 bolt face then my choice would be a 26-06 AI. which would be your best bang for the buck, they will send an 87gr Vmax 3900 fps plus.

Thank you for the suggestion. I want a 95 grainer at 4,000 feet per second. I already have a .257 wildcat that fires a G. S. Custom 88 at 3,900 fps. They are the most accurate bullet I ever tried. I used them in .375, the above .257 and 7mm.