1:8 twist 22-250

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Re: 1:8 twist 22-250

Post by Madang185 » 19 Jul 2021, 9:46 am

Have shot a Savage LRPV with 1:9 barrel for more than 10 years. Nine different loads AV 0.51 inches with a projectile range from 50 to 65gns.
Certainly more flexible with heavier bullets
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Re: 1:8 twist 22-250

Post by bigpete » 19 Jul 2021, 9:47 am

I got too much gear aimed at 22-250 reloading to bother with a 243. If I was going to change it that much,I'd just go the 250 savage. But a 22-250 capable of firing heavier pills will be just fine
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Re: 1:8 twist 22-250

Post by boingk » 19 Jul 2021, 11:00 am

Madang185 wrote:Have shot a Savage LRPV with 1:9 barrel for more than 10 years. Nine different loads AV 0.51 inches with a projectile range from 50 to 65gns.
Certainly more flexible with heavier bullets


That's what my brother ran I'm pretty sure, and he not only had a 900yd club record with that rifle (pretty sure it still stands) but took down all sorts of game with it. Rabbits, foxes, wild dogs, goats and the odd pig.

Damn rifle was a monster.

From memory he pushed the thing hard with a Krieger barrel 1:9 twist...

I'll give him a call if you want to know the details. This was more than 15 years ago so I may be remembering details poorly.

- boingk

PS:

bladeracer wrote:keep in mind that I consider ADI load data to be no better than you'd get throwing darts at a powder graph


Glad I'm not the only one. Some of their data is all over the shop, especially for different projectile weights and types.
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Re: 1:8 twist 22-250

Post by JohnV » 19 Jul 2021, 1:55 pm

ADI can't accommodate all the strange variations you get in reloading like my 243 takes a full 4 grains of powder more before it shows any pressure signs than a mates dose using the same components . If he tries to load to my guns level it won't extract properly .
ADI's data is an average just a guide not a bible , the starting points is the main safety feature .
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Re: 1:8 twist 22-250

Post by grumpy308 » 19 Jul 2021, 11:40 pm

Hi Pete. Experience with a 22.250 1 in 8 rifle several years ago showed that driving 80 grainers at top velocities (33-3400 fps) gave projectile failures due to excessive spin rate. 80gn Amax's were bad with a large percentage of failures while the Sierra matchkings only blew up occasionally . The rifle was built to shoot 300 mt events but the two projectiles available at the time weren't up to the task so advantage of the extra velocity over the 223 couldn't be utilized to the full. The barrel was rechambered back to a 223 and never had any further projectile failures. Most projectiles in 22 cal will handle fast twist rates at 223 velocities or high velocities in slower twist bigger capacity cases but I don't know if there are any around that are designed for high velocity as well as fast twist. Regards Malcolm.
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Re: 1:8 twist 22-250

Post by Oldbloke » 20 Jul 2021, 12:01 am

If you go to 243 is it possible that will created magazine or feeding issues?
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Re: 1:8 twist 22-250

Post by bigrich » 20 Jul 2021, 4:45 am

Oldbloke wrote:If you go to 243 is it possible that will created magazine or feeding issues?


On a model 70 you can just change out the mag box and follower and not have any issues. Dunno about other makers, but feeding could be a issue
Pete already mentioned he would prefer to go 250 savage, being the 22-250 is based on that it should feed well :thumbsup:
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Re: 1:8 twist 22-250

Post by bigpete » 20 Jul 2021, 6:32 am

Oldbloke wrote:If you go to 243 is it possible that will created magazine or feeding issues?


It'll fees 308 empties up till the chamber so I should think 243 wouldn't be an issue
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Re: 1:8 twist 22-250

Post by solarpak » 27 Jul 2021, 7:38 pm

Wish someone would start making a fast twist 25-06 (1:7.5 ROT) to shoot heavier 25cal bullets.......would crap all over the creedmoor..

Lots of folks in the USA are starting to get their 25-06's rebarreled to shoot the 131 gr Blackjack bullets.......

Interesting!

C.
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Re: 1:8 twist 22-250

Post by bigrich » 28 Jul 2021, 4:45 am

solarpak wrote:Wish someone would start making a fast twist 25-06 (1:7.5 ROT) to shoot heavier 25cal bullets.......would crap all over the creedmoor..

Lots of folks in the USA are starting to get their 25-06's rebarreled to shoot the 131 gr Blackjack bullets.......

Interesting!

C.


I’ve always wondered why there weren’t heavier projectiles for the 25 caliber myself it definitely has the potential for it
But It’s always surprised me why the 6.5-06 hasn’t picked up more support. Folks always rave about the ballistic advantages of long , efficient 6.5 caliber.
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Re: 1:8 twist 22-250

Post by Madang185 » 28 Jul 2021, 9:13 am

Have run a Savage Long Range Precision Varminter since 2007, think from memory twist is 1:9

It has digested dome ten or so different loads ranging from 53 to 63gn in weight with an average three shiot groups of 0.51 inches. Projectile over a wide range of commercials and custom protector points from Gary Little in Brisbane.
It was a good buy
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Re: 1:8 twist 22-250

Post by SCJ429 » 28 Jul 2021, 7:04 pm

solarpak wrote:Wish someone would start making a fast twist 25-06 (1:7.5 ROT) to shoot heavier 25cal bullets.......would crap all over the creedmoor..

Lots of folks in the USA are starting to get their 25-06's rebarreled to shoot the 131 gr Blackjack bullets.......

Interesting!

C.

Why don't you rebarrel your rifle into a fast twist 25-06 and see for yourself if it a quantum leap over a CM? The reason that gun makers don't do it is there is little interest in that calibre.
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Re: 1:8 twist 22-250

Post by solarpak » 28 Jul 2021, 8:25 pm

SCJ429 wrote:
solarpak wrote:Wish someone would start making a fast twist 25-06 (1:7.5 ROT) to shoot heavier 25cal bullets.......would crap all over the creedmoor..

Lots of folks in the USA are starting to get their 25-06's rebarreled to shoot the 131 gr Blackjack bullets.......

Interesting!

C.

Why don't you rebarrel your rifle into a fast twist 25-06 and see for yourself if it a quantum leap over a CM? The reason that gun makers don't do it is there is little interest in that calibre.


May just do that SCJ.......and i have a creedmoor to compare it against.........certainly!!! :clap:

C.
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Re: 1:8 twist 22-250

Post by Blr243 » 28 Jul 2021, 8:36 pm

Despite never owning one and only seen one once or twice on hunting trips I got a soft spot for the 2506 ...hard hitting flat shooter.....I’m surprised there are not more of them kicking around
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Re: 1:8 twist 22-250

Post by animalpest » 29 Jul 2021, 7:40 pm

There probably is BLR it's just the we who own them love them so much we won't sell them :lol:
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Re: 1:8 twist 22-250

Post by bigrich » 29 Jul 2021, 8:31 pm

oh no BLR , i think you need another gun :P 25-06 is calling to you ......you know you want one :D

this is payback for putting the 45-70 thing in my head ...... :lol:
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Re: 1:8 twist 22-250

Post by Blr243 » 29 Jul 2021, 8:54 pm

Or a 270 , sauer do one under a grand , shooters delight selling ppu 270 factory ammo 24 dollars a box , fair bit cheaper than 2506 ammo ......we shall see
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