Home Forums Reloading Varmint Rifles 223 Rem 1 in 9" Twist & 40 grain bullets

My brother loves the Super Explosives out of his Remington a slower twist barrel. I do still like the 50 gr TNTs, though.

Seafire: And are you happy with the accuracy of the 40 grainers out of the 1 in 7" twisted 22-250?
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VarmintGuy

Deflave: I will keep in mind your 40 grain recommendations for my near future load development tests.
I will stay away from the SPSX's.
And thank you for the bolstering of my intensity in getting this Rifle to shoot something in the 40 grain weight.
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VarmintGuy

I have gotten the best accuracy with H-335, W-748, X-Terminator and H-322 with 40 gr bullets - but have not tried Benchmark, 10x and a bunch of other powders that are applicable. Since I load a lot of .223 ammo at a time, I like the way spherical powders or short-grain powders flow through a measure uniformly.

Shouldn't lose any velocity. Another wives tail that faster twists spike pressure.

A bullet coming unglued in the barrel can, which gives false credence to the tale...

I just bought a Savage .223 with 1 in 9" twist and it loves the Fiocchi 40 grain V-Max's. I just went prairie dog hunting last weekend, and the gun performed fantastic!

VG,

of the bullets mentioned, all have been as accurate as any other bullet in the barrel.. it is a Pac Nor after market barrel.. 24 inches in length, heavy magnum contour..

I have had good luck with all of my Pac Nor barrels for accuracy...

all bullets aren't created equal. They wait until out of the barrel to come unglued.

Unless they are cast lead.

They come unglued all right, the barrel just contains it. (grins)

40 grain Vmax over 28 grains of H335 with a CCI primer and range brass. 1-9" Win Coyote has always shot this load under 1/2". Have had some trouble with fouling but gonna try some Ultra Bore Coat. Not sure if the fouling is attributed to the rate of twist, but I can't imagine it helps.

I have noticed a little fouling on it's two range trips.I was thinkin about a little lapping to smooth things out.I can't imagine Winchester using a top grade barrel,but so far it's shooting well.It respones well to loading changes and will tell you what it likes or not.It likes 10x and 2015BR...
I happy with the platform,so a re-barrel would not out of the question.I traded my last Remington for it and got some money to boot.

Seafire: I only have one Pac-Nor barrel in the ranks of my custom Rifles (caliber 6mm Remington Ackley Improved) but indeed I have been very happy with it and the accuracy it produces.
Again I have just had it in my mind that light bullets in a 1 in 9" twisted 22 caliber barrel would not be conducive to accuracy - in this case I am happy to find out my pre-conceptions were wrong!
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VarmintGuy

Higbean: I have printed out your load recommendations and will soon try it - I have H 335 on hand and the local pawn/sport shop has some Hornady 40 grainers in stock.
Thanks.
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VarmintGuy

My Savage 1 in 9" loves the same load as Higbean uses. W-748 is also good at about a grain higher, but I find better velocity and equal accuracy with H-335 and the light bullets. Another load if temp sensitivity is a concern is 24.5 gr of H-322. Not quite as fast or as accurate in my guns, though, as the H-335 loads. Depending on what I have on hand for primers, I will use CCI mag primers and drop half a grain of H-335.

Calif. Hunter: Thank YOU for the valuable load information - I very much appreciate it - it has been copied and filed.


Guys: I went over to the Lilja Rifle barrel site and copied this "Caliber/bullet twist rate chart" for our perusal here.
I think it was charts like this one that "formed" my illusion of the 1 in 9" twisted barrels not being best suited for the lighter bullets.
Indeed the Lilja site shows the "lightest" bullet recommended in the 22 centerfire caliber barrels twisted 1 in 9" is the 68-69 grainers:
Chart to follow (hopefully):

WEIGHT / CALIBER / TWIST RATE CHART

Grain/Cal .172 .204 .224 .243 .257 .264 .277 .284 .308 .338 .358
17-20 9-10
25 10
30 9 12
33 12
35 12
37 VLD 6
40 12
50-52 9 14
55 12
60 12
68-69 9,10 13,14
75 9 14
80 8
85 7 12 12 12
90 7 10
100 10 10 12 14
105-107 8

Well that didn't turn out worth a darn!
I will try now to list a link to the Lilja recommended twist rate/bullet weight chart page:

http://www.riflebarrels.com/products/caliber_twist_rates.htm

I hope that works.

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VarmintGuy

I recently acquired a Stevens 200 (Savage without the Accu-Trigger) in 223, it has the 1-9 twist and using Nosler 40 gr ballistic-tips/26.3 gr of VV-133/ and any brand of small rifle primer it shoots 1/2 groups for 5 shots at 100 yds. This is with a 3x9 scope, although I am using a target that fits the scope power so I can define the aim point easily.

Using this set-up any gopher within 300 yds has about a 90% chance of dying. The best part is that I have less than $300 the whole set-up. With more magnification I could reach further but this set-up lives in my pick-up the scope is always set to 9x and when a target of opportunity presents itself it is ready to go without thinking about what I have to change before shooting.


drover

I believe you may be misreading that chart, VarmintGuy. It says to choose twist rate based on the heaviest bullet you intend to shoot, which means that according to them a 9 twist is good for bullets up to a maximum of 75 grains rather than the minimum.

Here's a good twist estimator which I did not create, but which I use:
bullet-stability-and-twist-estimator

That's the way I read it which is the way it works in my rifles, too. I get very good accuracy with 69 Sierra's but my groups triple in size with 70 grain Barnes. I know the Barnes is long for weight, but have never tried a 75 and believe it would show an accuracy deterioration at 223 Remington speeds.

Drover: Sounds like a great rig you have there - and economical to boot!
I am into my 700 VTR and its used Leupold scope about double and a half of your amount ($700.00).
I would sure be happy with 1/2 groups from the 40 grainers from my rig!
I will be working on that as the wind allows.
I use VV N-133 powder in a couple of my Rifles and for the life of ME - I can not find any of it on store shelves to save myself. Have you seen it for sale of late?
I am just about fed up with this "component shortage".
I see no let up in sight for these shortages and high prices.
Drat.
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VarmintGuy