.22x284 build
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No one is coming up with new calibres, they are coming up with new cartridges. That’s my pet peeve... though not quite to the same level as @Miki...
I can explain why they do it very simply, it’s a hobby. The guy that started the thread in the link I posted on the previous page is a crazy wildcatter and a very good machinist. He finds cheap as barrels second-hand here there and everywhere and turns them into barrels that fit his Desert Tech, takes about a minute to change them out. In doing so he explores the capabilities of powder and projectiles in different forms, and comes up with some stunning results. My recent favourite is the .22 Grendel.
It’s just an extension of the man in his shed with machines culture that has existed since forever.
It’s worth remembering that through these kinds of efforts a whole raft of our favourite globally best selling cartridges were born.
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How many 1:7” .22-250s are available off-the-shelf?
Bloody hell, that was deep man!!No one is coming up with new calibres, they are coming up with new cartridges. That’s my pet peeve... they not quite to the same level as @Miki...
I can explain why they do it very simply, it’s a hobby. The guy that started the thread in the link I posted on the previous page is a crazy wildcatter and a very good machinist. He finds cheap as barrels second-hand here there and everywhere and turns them into barrels that fit his Desert Tech, takes about a minute to change them out. In doing so he explores the capabilities of powder and projectiles in different forms, and comes up with some stunning results. My recent favourite is the .22 Grendel.
It’s just an extension of the man in his shed with machines culture that has existed since forever.
It’s worth remembering that through these kinds of efforts a whole raft of our favourite globally best selling cartridges were born.
Believe me, spend the day in the shed with Phil and you’ll think you are descending to the bottom of Western Deep Levels (which coincidently is where are used to work, 3km down!)
The level of detail and effort he goes to is commendable. Funny thing is that more often not, once he’s shot a quarter MOA group in the back garden, his latest wildcat goes onto the shelf and he starts the next one.
The level of detail and effort he goes to is commendable. Funny thing is that more often not, once he’s shot a quarter MOA group in the back garden, his latest wildcat goes onto the shelf and he starts the next one.
6pt-sika
Well-Known Member
If you’re gonna go to the trouble to build a 22 CM you can use the same twist barrel blank and run a 22-250 reamer in it and get within 150 FPS of the CM version . 6mm-284 has a fair amount of followers , I however built a 6mm-06 with a Hawk Hill stainless 1:7.5 barrel . The thing many people fail to realize is this , you can use older designed cartridges for the new long VLD bullets provided you put a faster twist barrel on your action . Have no illusions you can take a 260 and a 6.5 CM with the same twist same bullet and get them to do the same thing , same for a 243 and 6 CM . Same for 6-06/6-284 or 6.5-06/6.5x284 . Just so happens I prefer the 260 , 243 , 6-06 and 6.5-06 . Low and behold I have atleast one each of the four I prefer .
6pt-sika
Well-Known Member
Since I rarely buy new off the shelf that’s unimportant to me . I typically buy older what I see as better quality rifles , remove the barrel and maybe the stock and replace with what I want . I’ve got seven or eight I had built at the moment with possibly two more in the works .
Sure, I was of course referring to factory .22-250 rifles. Fastest twist available? 1:9”. (From memory.)
Accuracy and efficiency, that’s what drives my mate with his wildcatting exercises. What he has been able to demonstrate to me is how the short, fat cartridges preferred by the benchrest community are both more efficient and more accurate than their longer counterparts derived from old cases such as the .22.250 and -06.
Not always, but most of the time.
This is where I run out of steam, because I have never really got on top of internal ballistics.
Accuracy and efficiency, that’s what drives my mate with his wildcatting exercises. What he has been able to demonstrate to me is how the short, fat cartridges preferred by the benchrest community are both more efficient and more accurate than their longer counterparts derived from old cases such as the .22.250 and -06.
Not always, but most of the time.
This is where I run out of steam, because I have never really got on top of internal ballistics.
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6pt-sika
Well-Known Member
Absolutely the not really new thing are short fatter cases . I’ve been messing with the PPC for about thirty years , the short magnums for atleast twenty years and almost as long for the super short Mags . But unlike some folks I just like messing with them . But just because that’s the present way of thinking certainly doesn’t mean anything’s wrong with cartridges based on the 06 or 308 cases and I have a bunch based on both . At the moment my only short Mag is a 6.5mm Sherman Short Magnum . At present I’m still fire forming cases but based on the groups it shot while doing that I’ll undoubtedly be atleast semi satisfied . I have no illusions that this will be any better than my 6.5-06 but I still wanna try it . I’ve got a little Winchester Model 70 in 243 WSSM I’m vascillating back and forth to have rebarreled to 6.5mm - 243 WSSM . Will that be any better than my group of 260’s I certainly doubt it but I’ll still enjoy it if I pull the trigger on that build .
Um, You can if you build a 22-250 with fast twist barrel Throated for the heaviest .224 bullets.....
sir-slots-alot
Well-Known Member
Yeah I have done this twice , simply by re-barreling in 22.250 with a tight twist. There is no need to throat out for longer bullets IME although it must be said that is i didn't shoot 90+ grn bullets. . I used 75g and 80g Amax bullets and there was no issue and plenty of room in the case. Both my tight twist 250s rifles would attain over 3300fps with a 75 gn bullet and 3200fps with the 80g Amax pill.
The 22.250 makes this very easy and cheaper to do - Lapua or Nosler 22.250 brass are on the shelves and ready to post to your door, no need for fire forming or necking down. Dies and all loading gear readily available and getting the barrel cambered is easy to , as every gun engineer will have a 22.250 reamer.
I understand the itch to try new stuff and have the bragging rights to an interesting wonder caliber that few have heard of , and even fewer have shot , and some people don't want "easy" Seems some people actually enjoy the whole case prep process.
I guess if you want a bit more velocity and to get on your Gunsmith Christmas card list - then why not choose one of the ultra high powered 22 cals like the 22 Creedmore
ATB
Alan
6pt-sika
Well-Known Member
I’ve got a 22-250AI on of all things a Ruger #1 action , it was rebarreled with a Lilja stainless medium weight barrel . My pop bought it used at public auction probably 25-30 years ago . I have no idea the twist in the barrel or the number of shots before we got it . But I will say I fired the smallest three shot 100 yard group with this rifle I’ve ever done in my life . Three shots with if I’m not mistaken the Nosler 50 BT were 0.054” after deducting the bullet diameter . That was the first of four sub 1/10 MOA groups I’ve fired in my lifetime so far . I don’t think I’ve fired that #1 in atleast five years .
Triggermortis
Well-Known Member
Years ago (Circa 40)I met a gunsmith who Showed me a 22-270, not heard of or seen one since, anyone shed any light on the calibre ?
Sonicdmb73
Well-Known Member
Would that not be the same thing as a 22-06? Same parent case different names
shakey jake
Well-Known Member
not thw same parent case 270 is based on 30 03 its differnt length
Triggermortis
Well-Known Member
Would of thought it push a .22 well north of 4000fps, possibly nearer to 5,000?
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