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25-06 90 gr Sierra Blitzking load data

 
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  #1  
Old 01-24-2012, 02:06 PM
XCR XCR is offline
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25-06 90 gr Sierra Blitzking load data

Thanks for reading guys, and gals. This is my first post on this site however I read a lot of forums from here and always find the best information.

I am in need of the Load Data for the 90 gr Sierra Blitzking .257 for a 25-06. I am ordering the Sierra Manual but would like to get my loads ready for the range this weekend. I will be shooting them from my shiny new Remington XCR II 25-06. I currently have IMR4831 and IMR7828SSC to work with but if I see something better/different I can get it.

I have already completed the "Break In" and now I am ready to get it zeroed.
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  #2  
Old 01-24-2012, 05:13 PM
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Re: 25-06 90 gr Sierra Blitzking load data

I was just comparing data in 25-06 & AI against the 257 weatherby. intresting data with some being impresive and some not so for powder volumes to fps.
Anyway here ya go per the sie fifth edition. imr 4831, 47.7grs @3000 fps, 49.5 @3100, 51.3 @3200, 53.1 @3300, 54.9 grs max @3400. Accuracy for all powders tested was load 53.1grs @3300
Read the descriptions and apps for bullets on game in front of manuel for the .257. I found some of there recommendation odd. Like the 90 gr for medium sizes game. ? think i'd go with 100 or more and not a hollow point.
I just put my abolt 25-06 back together after doing some work on it. I want to give the 100 sbt sierra and 110 accu 100 btips a try. 115 silver tips were the previous load i used with avg groups. let me know how it works out with the 90's

Gene
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  #3  
Old 07-22-2012, 03:07 PM
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Re: 25-06 90 gr Sierra Blitzking load data

Quote:
Originally Posted by XCR View Post
Thanks for reading guys, and gals. This is my first post on this site however I read a lot of forums from here and always find the best information.

I am in need of the Load Data for the 90 gr Sierra Blitzking .257 for a 25-06. I am ordering the Sierra Manual but would like to get my loads ready for the range this weekend. I will be shooting them from my shiny new Remington XCR II 25-06. I currently have IMR4831 and IMR7828SSC to work with but if I see something better/different I can get it.

I have already completed the "Break In" and now I am ready to get it zeroed.
How is your prograss on those loads?

I have been working on the same bullet just recently.
My reason is performance.


My coyote load has been the 85 Ballistic tips, or the last 8 years the Berger 115 VLD at 3200 fps.
after a few years off of hunting, I have witnessed the explosive power of what the Vmax does to coyotes.

And other thin skinned bullets like the Varmint Nosler BT (like the 85's I used to use), Speer TNT and Sierra Blitzking.

Those ultra thin jacket bullets explode like a shrapnel grenade once they penetrate the inside of a coyote, a combination of velocity and fragile construction.

Almost EVERY song dog dies right on the spot, even out of a .223

I like the Sierra 90 Blitzking, as it has a BC of .388, making it the hands down best of all varmint bullets excepet the 87 Vmax in .243 caliber (.400 bc)

Back to the Sierra Blitzking, they have a thin jacket up front, so reloading them can be a pain, as the bullet can take damage when bullet seating (in my Redding bullet seater). the case necks have to be trimmed thin, as I have a small expander ball for tighter bullet seating in my bullet dye.

My loads I am just working up

Rifle 25-06 ruger M77 MkII 26 inch bbl

90 Sierra Blitzking

MAX LOADS
Rem Brass, CCI BR-2 primmer
all 20 Brass weight is 199.5 grains (I sort my brass)
Flash hole debur, primer pocket uniform
outside necks turned


H4350 56.0 =3615 fps (15 ft from muzzle)
-this is an old powder lot-
groups 3 shots into 0.85 inches @ 100 -0.035 off

H4350 55.0 ???? fps (chrono would not work getting late) 0.025 off
-same old lot of powder-
groups 3 shots into 0.54 inches @ 100


Reloder 19,
56.0 = 3437 fps
57.0 = 3477 fps
58.0 = 3560 fps
60.0 = 3652 fps

Not grouped yet

H4350 Ext (new lot) 0.020 off rifling
55.0 = 3572 fps
groups 3 shots into 0.53 at 100 yrds


shooting all off a portable bench that wobbles some is not easy.

not as good as the VLD's groups, but not bad.
my last 115 VLD group was a 0.50 inch 3 shot groups at 200 yard with the 115 VLD's., but the groups above are still respectable.

90 Blitz
my goal is to keep the loads around 3500 fps or just over, as accuracy seems to be better in the 10 twist,
if not pushed to over 3550 fps. I was testing loads in 85-90 temps. so I hope around fall winter the FPS drops to 3540-3520 fps or less.

my nosler 85 BT's never would group well at high speed, loaded them to 3705 fps and was 1.5 moa, back them down to 3400 fps and 0.75 moa, but that was using H4841.
These 90's blasting out to almost 3700 fps still under 1 inch at 100 yrds are impressive for a bullet that is almost .4 bc, But 3500 fps is good enough for 90's, and at 3500 fps brass life will be better, and less stress on gun, more accurate too.

(loads safe in my rifle, my factory 25-06 seems to have a tighter neck than others and the fireformed body has larger than norm dimentions (not it is not a improved) and fireformed necks smaller dia.)

No real signs of pressure except flat primmer s, all loads have flat primmer s in my 25-06 w rem brass.
loads are MAX book listed, but dif lots of powder require new testing.

Use cation, and reduce loads 4.0-5.0 grains and work up slowly.

Hope your loads are working out for you, let us know!

have a great day
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  #4  
Old 09-10-2013, 11:03 PM
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Join Date: Oct 2012
Location: DFW, Texas
Posts: 331
Re: 25-06 90 gr Sierra Blitzking load data

Any updates on loads with the 90grainers?
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  #5  
Old 10-18-2013, 09:41 AM
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Join Date: Aug 2009
Posts: 83
Re: 25-06 90 gr Sierra Blitzking load data

Quote:
Originally Posted by Texote View Post
Any updates on loads with the 90grainers?

I've been testing the 90's at long range, and launching them at 3550 fps they are good to 400 yards. a 2.25 inch 425 yard group.. the problem is most 25-06 are 10 twist, so a shorter bullet spun to fast can cause problems at longer ranges.
Shooting at 625 yards the bullets are about a ft low and a ft to the right from my 200 yard zero.. bullet RPM's are high enough to never let the bullet go to sleep and nose down in the flight path so bullets are pointing slightly upward while the bullet is traveling down killing off the BC of the bullet.

The solution is to either slow them down or buy a 12 twist. I opted for the former and slowed the down to 3430 fps and have yet to test them at 600 yards.
The 115 Bergers are probably better suited for the role. but the quick killing power on coyote sized game with the thin skinned bullets are hard to give up.
these bullets dump all of the energy of the 25-06 into my coyote. like an oversized 22-250/220 swift. They are DRT.
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  #6  
Old 03-20-2014, 04:00 PM
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Join Date: Jun 2012
Location: SE PA
Posts: 220
Re: 25-06 90 gr Sierra Blitzking load data

Scottyd did you ever get back out to 600 yards to test these after reducing the velocity? Anybody else have any other load data on these?
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  #7  
Old 03-20-2014, 07:56 PM
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Join Date: Aug 2009
Posts: 83
Re: 25-06 90 gr Sierra Blitzking load data

Quote:
Originally Posted by motown View Post
Scottyd did you ever get back out to 600 yards to test these after reducing the velocity? Anybody else have any other load data on these?

No I have not. I loaded some up and never got back out with them.. I went back the the Berger 115's for longer range, the gun has many rounds through it and the throat is eroded. I hit a 10 inch steel plate at 800 yrds, once out of 5 rounds.. it used to be more accurate. But needs a new barrel..
Those 90's are absolute death on coyotes through
I've been shooting my Ar-10 308 out to 1000 yards on an 16 inch steel plate and having fun. But I'll get back out with the 25-06 sometimes and let you know.
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