90gr Berger VLD and the 223 - 500m Group 1 1/16"X 1/8" see post 357

Tikka have you considered doing a latter test with the 90gr VLD?
I was with Dan to Batouche a couple of weeks ago and had the pleasure to shoot some 90gr VLD's from a 22-250 at 900 meters. I should be testing some 90gr this weekend (with a little help from some friends) Let me know if your interesting in going.
 
Have a .223 1 in 6.5 twist on the way, 32" barrel, throated out to hold .100" of the bullet. Anyone want to pm me some of there tried data(chose 90 VLD as it has slightly higher BC). Thinking N550 or N540 but the RL17 has me interested, I use that with 210's in my .308

Thanks

Andy
 
Hi, I own a Savage model 25 light varminter in 223. It comes with a 24 inch barrel with 1:9 twist. I shoot cheap 55 grain hollow points and so far accuracy has been good.

I am interested in the heavier bullets but obviously need a faster twist. I am interested as to what my options are. I have not seen many rifles in 223 with twists other than 1:9.
 
@Parcatol you won't be able to shoot the 90s in your 1-9" twist, but you do have a number of pretty good choices for heavier bullets. A good bullet to try would be the Hornady 75 BTHP (not the 75 Amax). Check out various threads in the Reloading forum, or you can even start a thread of your own there.
 
Parcatol said:
Hi, I own a Savage model 25 light varminter in 223. It comes with a 24 inch barrel with 1:9 twist. I shoot cheap 55 grain hollow points and so far accuracy has been good.

I am interested in the heavier bullets but obviously need a faster twist. I am interested as to what my options are. I have not seen many rifles in 223 with twists other than 1:9.
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I would certainly make the jump to the 69 Sierra Matchking or the 68 Hornady Match. I've also had good results with the 77 Matchking and the 75 Hornady Match out of my 9 twist. The 68/69 range will probably perform well out of that barrel. The 75/77 may or may not (that twist rate is right on the edge for this weight) but they're worth a try.
 
I've been following this thread. And have finely got some 90gr VLD's. I sent an email to Berger asking for some load data on the 90's. For varget they list a start load of 18.5 grains and a max load of 20.4 grain. But several people have said they use 24.5, 23.5 grains of varget and it works ok. Why the difference?
 
MRFixIT said:
I've been following this thread. And have finely got some 90gr VLD's. I sent an email to Berger asking for some load data on the 90's. For varget they list a start load of 18.5 grains and a max load of 20.4 grain. But several people have said they use 24.5, 23.5 grains of varget and it works ok. Why the difference?
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24.5 gr of Varget will give you loose primer pockets after a few firings, 23.7 seems okay app 2740-60 fps 30" 1/7
 
The 223 SAAMI max pressure is around 55,000psi.

magnum pressure is around 65000psi.

Most will run standard cartridges at magnum pressures (some higher) which explains the difference in powder charges.

And loose primer pockets.

Jerry
 
Thanks for the info guys.
I didn't realize you could go as high as 75 grains with a 1:9 twist.
There are so many variables in this sport. I am enjoying the learning curve.
 
Parcatol said:
Thanks for the info guys.
I didn't realize you could go as high as 75 grains with a 1:9 twist.
There are so many variables in this sport. I am enjoying the learning curve.
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Depends on the 9 twist.

As the box suggests 9 twist is right on the borderline for a bullet like the 75gr Amax and Berger VLD. A bit slower, and they may not work.

All rifling has some degree of variance and some makers lean slower or faster wrt their listed twist rates. Savage tends to be fast, Rem slow. Which is why you hear alot of Rem shooters saying a 9 twist is not fast enough for a 75gr VLD.

They may not be shooting 9 twists barrels.

Then there are types of bullets. The VLD's tend to be long for their bullet weight - Secant ogives.

Tangent ogive bullets may weigh the same but are usually stubbier so need less spin to work. Sierra MK's are usually less twist needy cause they tend to be stubbier for their weight.

The 75gr Hrn BTHP is another that needs less "9" to get it done. So you have to qualify both the TRUE twist rate and the needs of that bullet.

Get a Bryan Litz book, or visit any bullet manf site and look at the various BC's for similar bullet weights. Higher BC's for same bullet weight means a longer bullet thus needing a faster twist rate.

There are many other variables but start pushing lead downrange and that will resolve alot of math.

Jerry
 
Well here goes just got my .223 back from Rob Steele.
Specs. 31" 1 turn in 6.5 Krieger
Throated long COAL of 90 gr. Berger 2.755 Approx .100 of the bullet in the neck...
going to break it in tomorrow
Trying Leverevolution, Varget, and RL 17 was messing around with the load from a disc, seting the bullet to 2.6 you get 24.69 gr usefull case capacity, seating @ 2.755 you get 26.231 gr usefull case capacity.
Seeing how it's close to 100 degrees here my data should be good for all conditions, I will run tandem chronies and post a range report shortly.

As far as the 1 turn in 9" goes 556 nato and I both had 700P's in .223 with 1 in 9 his would shoot 80 Sierra's fine mine put them sideways @ 300 go figure same load etc...Both shot the 75 gr. Amax with no issue Varget and VVN540.

Andy
 
Seems shooters out east are doing very well with the 80.2 and 90gr Berger bullets.

Dont have all the load data but solid placings and wins have occured recently.

And against 308/heavies.

Loading tuning is working great over a decent temp range. Vertical is very low pending my ooops.

Wind bucking is decent. Nothing like my 6.5 but not bad at all. Sure got to be on your toes but I am sure the 308 is not that much different (????)

Heading to the Westerns next week and we will see how I fare in the SK winds.

Should be a hoot...

Jerry
 
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