@chainsaw do you hand load for your 6.5 06s
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@chainsaw do you hand load for your 6.5 06s
Here's a nice 375 wildcat
375 Renner
Cut a short chamber with standard 375 H&H chamber reamer
Make brass from 45-90 which is actually reasonably available
Shorten standard 375 H&H sizer die by about 11mm
So you would get a useful 375 Nitro wildcat without having to make anything special to chamber or feed it
Still looking for a proper 375 barrel !
Attachment 226861
Yes it’s the only option once you go the “wildcat” path.Quote:
Originally Posted by blip
Greetings All,
I had a .30-06 AI for a bit which was a Parker Hale target rifle rechambered from .308W. That was my only wildcat. I have also worked with a 6.5-05 which was originally a wild cat, briefly a factory round and now a wildcat again. The most interesting was a 6.5x60 Wire made by a local rifle enthusiast. I must have the data and some fired cases here somewhere which I should look out.
Regards GPM.
That, is flippin awesomeQuote:
Originally Posted by Von Gruff Knives
do you use magnum primers?Quote:
Originally Posted by chainsaw
No, Fed LR primers, Norma brass with RL25 pushing 140gn AMAX at 2980 fps.Quote:
Originally Posted by blip
Greetings All,
As it was another wet day here in HB an expedition to the shed yielded some 6.5x60 Wire formed cases. They measure 57.5mm long so almost 1mm longer than the 6.5x57 and have a shoulder that is around 40 degrees. The dia at the shoulder measures 11.4mm and the length to shoulder 47mm. These are a little less and more respectively than the .257 Roberts Improved. I don't know any more about the rifle than what I could see and the gentleman that built it has left the range. It was built on a 98 Mauser action and fitted with an reticle moving variable scope. From memory the barrel had a 10 inch twist so would not handle the heavier projectiles.
Regards Grandpamac.
Hey @BRADS I see you listed the 22/204 aka 22 Terminator. How did you find it vs a standard .223? I’ve contemplated it for a bit more horsepower in that bore size. 1-8” twist of course….Quote:
Originally Posted by BRADS
Awesome, better than a 223 in every way except the brass forming.Quote:
Originally Posted by Hunter_Nick
Flick Kiwi Greg at terminator products a message.
Sent from my SM-S916B using Tapatalk
Attachment 227226
Attachment 227227
My contribution
The nasty nasty .17 mach 4
Lucky enought to score it off a forum member.
Thanks Swingman!
Wild little wasp this one.
17 ackley hornet is on my list. No real reason other than I like the old school stuff
forgot about that one, had one myself.Quote:
Originally Posted by BRADS
They go great or go bigger x47 case :)
Mines a simple one no reamer involved at least yet.
I got frustrated with a model 7 7mm saum not being able to seat close to lands and fit mag.
Barrel came off and chamber was shortened 200 thou from the rear and polished at the rear to increase diameter slightly (thanks Mitch Maxberry)
Got a form die made up with 4 sequential inserts (Spencer tool and grind USA) )to make a 200 thou short saum. After 4 trips through the form die cases are trimmed first with a lee trimmer in drill to get rough length then wilson and then annealed and neck turned. Norma brass is so soft only 1-2 annealings required to finished case. Early attempts with rem brass were more tricky. I shoot 162 ELDM's under 51.5 grains 2209 CCI LR primer at about 2800 out of 24 inch barrel. capacity/performance is about the same as a modern 7x57AI
Resizing is done with a redding body die with 200 thou trimmed off the bottom and a modified Lee collet die (300 wsm body, 7mm mandrel shortened 200 thou).
Been running it over 10 years. 50 brass last about 5 firings before most are lost in the tussock. About a 10% loss rate per reload batch. Forming fills in a few winter evenings once every year or so. Finding new norma Saum brass is challenging (thanks Sidney for selling me my current batch at a great price much appreciated)
https://i.imgur.com/B7s8M5v.jpg
You have just turned @Wingman into a swinger :-)Quote:
Originally Posted by Mikey-p
Here's a .224 I messed around with a few years ago: https://www.nzhuntingandshooting.co....wildcat-48771/
Just started a new high performance. 25cal wildcat that I'll take a few pics of when I get a chance
Wow that .224 is awesomeQuote:
Here's a .224 I messed around with a few years ago: https://www.nzhuntingandshooting.co....wildcat-48771/
Just started a new high performance. 25cal wildcat that I'll take a few pics of when I get a chance
How are you getting on with the 303/22 purchase? I dumbly sold all my 303 reamers a few years back ( got a few in a bulk purchase ). Was always keen on a single shot in 303/25 or 22. Always wondered about taking out an encore barrel in 223 into one.Quote:
Originally Posted by akaroa1
Work in progress on buying the 303-22Quote:
Originally Posted by Kiwi.bloke
The 303 case family is generally bigger than what's currently considered safe in a contender but it would bolt in on an encore
If the twist was right it would be a nice round.
I do know where a 303-22 chamber reamer is but not sure which of the various lengths it is
Will get on to it ASAP
Here's the. 250 Sika I'm working on.
6.5-284 Lapua brass necked to .25cal and blown forward to a 40deg Ackley shoulder.
I have reamer sorted, dies nearly made and a few cases mocked up. Going to run a s/s 1-10 to 1-8 progressive twist vulcan barrel.
Along side a 6.5 creedmoor both loaded to AIS mag length
Attachment 227439
Need some of the 134 ELDMQuote:
Originally Posted by Wingman
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Yeah that's the planQuote:
Originally Posted by 25/08 IMP
Way back in the early 90's, I was running a custom 25-06 and my mate had a very nice Model 70 in 25-284. He could get an extra 100fps on my 25-06 with a number of different projectiles, shot like a dream. That 250 Sika looks like the 25-284 on steroids, looking forward to seeing the results.Quote:
Originally Posted by Wingman
Be bloody keen to see how that goes.Quote:
Originally Posted by Wingman
Barrel length??
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Good stuff. Yes a somewhat overbore option its called I believe. The 303/25 I used hit like a sledgehammer. I think I sold all my 330/25 brass and rounds, have some 303/22 brass still.Quote:
Originally Posted by akaroa1
Would need a careful bullet, throat and twist selection to get most out of it. Then again, that was not quite what the 303 cased wildcats were all about.
Yeah keen to get it set up too. I haven't decided on barrel length yet. The blank is 29" and it will be fitted to my desert tech bullpup so it could be left long.. however I'm a fan of short barrels and hotter powders running more efficiently than a long barrel with a slower powder.Quote:
Originally Posted by 25/08 IMP
This cartridge volume is approaching magnum case volume so I am find I don't have the choice but to run a slower powder and a 24" + barrel. Time will tell. I'll leave it long for initial testing
Interesting to see how & why various wildcat cartridges come to be, and how some of them go onto to become mainstream offerings by commercial firearms companies. With the current trend to longer range shooting & hunting it seems to me one of the primary factors in deciding which caliber to choose is the availability or lack of good high BC projectiles. Generally speaking there’s plenty of donor cartridges you can choose from for a wildcat but not always good selection of high bc pills. Two calibers that have been overlooked by projectile manufacturers in recent times are the 1/4 bore 25cal (257) and 270 (277) cal, and the 6mm (243) was lagging behind there for a while. Good to see the new 134 ELDM coming out for the 257 cal. A 25-08ai or 25-284 would be interesting prospects, although the latter would be a barrel burner I suspect. A 270-284 or 270SAUM would also be interesting if there were high bc pills available.
Hornady has been at the forefront of developing or marketing high bc pills over last 10 years or so. So much so that it’s become the basis of their business model. Develop high bc pills, throw in a new proprietary cartridge (Creedmore, 6.5PRC, 7mmPRC, etc) & some slick marketing and ….. Ka-Ching $$$$$. So I suspect the release of the 134 ELDM for 25cal is no accident. Just waiting for the 257Creed or 257PRC. :wtfsmilie:
.25 creedmore and .25 PRC are both big in usa in the target shooting scene
My one fits somewhere between these two but should get the same velocity as the PRC with a faster powder and shorter barrel. I may have to push the shoulder back another 50 thou to drop the case volume enough to get the efficient burn needed with a faster powder though. Still need to do a bit more testing
25 grendel?
That will be awesome I've had a 25-08 and an AI version so looking forward to your one. I hear True flight are going to make a 1-8 twist .25 who's barrel will you useQuote:
Originally Posted by Wingman
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Vulcan s/s 1-10 to 1-8 progressive twist. It will lower chamber pressures and lift muzzle velocities but still give the RPM for 130-135gr bullets
I'd be keen to see how that barrel goes Wingman, my 250 Savage AI reamer finally arrived and I'm getting it built on a Sako L579 action, looking at a Tru Flite barrel, 1 in 10" the only .257 twist they do. Very keen to see how yours goes, how far away from shooting it are you?
When I finally get time to work on it it will only take me a couple of hours.Quote:
Originally Posted by aimless
After more case modeling and some conceptual volumes v/s powder burn rates on quick load, I have decided to reduce the case length a little more to use a faster powder and a shorter barrel.
The std 284win case necked down to .25cal has a very simalar volume to a .25-06 which uses slow burning magnum powders, blowing the case forward to a 40 deg shoulder and straight walling the case lifts the volume to that of a wsm and 6.5prc case. I need to reduce the volume back to keep the powder fill in the ideal zone for pressure and accuracy.
The revised case volume on the right, parent case 284win in the middle and 6.5prc on the left.
This length will alow for longer bullets pulled out in a longer neck too.
Attachment 227888
I've always had a thing for the little Martini Cadets, so I like making 'cats for it. One for 357 Mag cases...22,6mm, 25, 6.5. One for shortened 30-30 cases....6.5, 30 Herrett, 32, 8mm and one for full size 30-30 cases....32-40 25-35.
Other rifles include 6.5x39, 265 RCBS ( 6.5-06 IMP. with 30 deg. shoulder), 8-06 Imp, 35 Carcano, 9.3x55 Imp, 405 Grenadier ( 400gr 412 pills in 7.62x54 Imp case ) and 416 Taylor.
Roger
I find myself wondering why there’s such a big caliber gap between 7mm (284) & 30cal (308) and why the gap has not been filled ? 284 to 308 is quite a large jump when you consider most of the others 243 to 257, 257 to 264, 264 to 277, 277 to 284 & so on. Seems odd that a “.295” or there abouts never came about ?
I think there were some long obsolete bore sizes in the .290’s. I assume manufacturers eventually migrated toward a certain array of bore sizes as bullet technology improved, as there could be more variation in bullet weight and design, that performance and application was no longer dependent on its bore size. I guess it’s the same reason .224 pushed .228 into obsolescence, .268 disappeared with the Carcano, .284 beat the .289 (or was it .287?) of the .280 Ross’ bullet, and many others.
@chainsaw I think @-BW- is correct. Having recently hunted down some projectiles in once of these obsolete calibers .287 for my Ross, I reckon that we are talking in such tiny size differences that there is no need for something in that 7mm to 308 gap, otherwise the Ross and .275 H&H (both use .287 pills) would still be mainstream.
If you were looking for a bullet in that size, I cant see the benefit of not just using a 7mm or .308, practically the same, and a hell of a lot easier to find projectiles for. Along those lines, it doesn't even seem like the manufacturers could agree, below is three .280 ross cases loads, my reloads with the 'correct' .287 pill on the left, a Kynoch .280 with a roundnose that measures .288 in the middle and a Kynoch .280 with a FMJ that measures .286 on the right, they all must have worked to a certain degree in their day.
Unless a big manufacturer wants to make a flash new .287 cartridge with high BC and extra low drag, to sell some guns, they might as well just focus on the calibers that have projectiles already. I guess it is just market/inventory consolidation over time.
Attachment 228136
A Photo.Quote:
Originally Posted by grandpamac
Attachment 228142
Finally found the camera on my new phone.
GPM.
Here's another one to think about. I have a Weatherby Varmintmaster that just might make it here from the UK after 3 years.
It's a 22-250 and supposedly the Varmintmaster mag box is 2.5" long- so a very strong miniature MkV action with a .473 boltface Being a 22-250 bought cheap sight unseen there's certainly a possibility that the barrel is toast. If it is toast then there's the delicious choice of what to rebarrel it in.
A fast twist 22-250 would work, as would a 22 Creedmoor, but both might be somewhat hamstrung by the mag length with heavies. One consideration will be the feed rails, 22-250 has quite a bit of taper, and "conversions" from it seem to have struck problems in the past according to some accounts. So what else is there . . . A reamer run in short ?
