.223 dated 2007 with slower twist rate?

[wonderwolf]

Picked up a .223 Ultra, assuming the barrel is the one that came on the gun its 2007 vintange and prior reading has shown this to be 1:9 twist. When I shoved a cleaning patch down it, it came up 1:12....when I shot it today it shot nice keyholes with 61gr bullets...soooo 2007 production runs not 1:9? did H&R ever get around to doing 1:9 barrels?


This is not a huge problem, I plan on making my own lighter jacketed bullets for this (I currently make a 61gr bullet) and hope to get the speed way up there....35 or 40gr bullets should do the trick for chucks. Never gone with a centerfire and that light of a bullet so it should be fun.

[quickdtoo]

They switched back and forth from 1:12: to 1:9" from 2005 and back again until 2007 when they quit making the 1:12", just depends when in 2007, an early 2007 build could very well still be 1:12". Is it an ejector or extractor?

Tim

[gcrank1]

IIRC many have used the Win. 'White Box' with success.; get, or dup. that and you should be good to go.

[wonderwolf]

I have no clue what the winchester white box loads are using as far as projectiles but I could search it out. It is a Ejector model which made me think at first it was a older gun really, surprised me when it came up 2007

[quickdtoo]

I only know of one 1:9" ejector 223, that's why I asked, they switched to extractors starting in 2004, but not all were switched until 2007, so that leads me to believe yours is one of the last 1:12" and ejector 223s they ever made.  Here's the magic ammo for the 1:12" barrels, it shoots under ½" all day long in my Ultra Varmint, last time I bought any it was $14 a box of 40, now it's close to $30! 

Tim

 http://www.midwayusa.com/product/2900119204/winchester-usa-ammunition-223-remington-45-grain-jacketed-hollow-point?cm_vc=ProductFinding

[wonderwolf]

I only know of one 1:9" ejector 223, that's why I asked, they switched to extractors starting in 2004, but not all were switched until 2007, so that leads me to believe yours is one of the last 1:12" and ejector 223s they ever made.  Here's the magic ammo for the 1:12" barrels, it shoots under ½" all day long in my Ultra Varmint, last time I bought any it was $14 a box of 40, now it's close to $30! 

Tim

 http://www.midwayusa.com/product/2900119204/winchester-usa-ammunition-223-remington-45-grain-jacketed-hollow-point?cm_vc=ProductFinding

45gr bullet going 3600, I think I can reproduce that in shop, I have some factory light weight bullets I'll experiment with but in the end I want to be shooting my own swagged tips out of this thing. I'm still thinking I want to try around 35-40gr. possibly make a 37gr ballistic tip with a 4s ogive....would be cute.  Might even send it in for a 30/06 and a .308 barrel. annnnd perhaps a 12ga and 20ga  as my shotgun barrels are WAY too short, all sorts of slop in them when I test fitted the couple I had on the "top" of the pile and I know they are all pretty close. 

[gcrank1]

Be forewarned that if the buttstock is the MC comb you will not like it with a shotgun barrel installed.

[wonderwolf]

Be forewarned that if the buttstock is the MC comb you will not like it with a shotgun barrel installed.

I switched the stock over to a "survivor" stock I keep a few spares around as I prefer those over anything else it seems.


So I ended up making a 32gr and a 35gr bullet, shot them for tests but due to the snow drift and general weather labratory conditions for the whole gambit with a Chrono etc was not in the cards....but I think these guys were going 3800-4100fps easy accuracy was promising offhand at 50 yards in blowing snow heh.


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[LONGTOM]

I have several 223s with 1-12 twist and they all seem to shoot fine with 52 grain bullets.
I even have one in 1-14' and it also like the 52s.

I use the cheap Ultramax ammo which have 52 grain Sierra BTHP bullets.
Deadly on varmints of all sizes.






LONGTOM