Model 70 Range Day .270 Win 130 Grain Ballistic Tips

Palouser

Handloader
Jan 20, 2012
459
1
After a frustrating day with 150 grain ABLR, I bought a box of 130 grain Ballistic Tips. I loaded them to 0.20 off for a COAL of 3.36". This group was 61.0 grains of H4831SC and Winchester WLR Primers and new Nosler brass. I am going to load some more of the same to see if this was a fluke but its a nice start. The gun is a factory 2012 Winchester Model 70, with a VX-II 3-9x50mm CDS.
 

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It is always comforting when the rifle and load act as anticipated. Fine grouping. I will not be surprised if it is repeatable.
 
Load that to 3.34" and watch it print a bughole....maybe, lol.

My 30-06's don't have that much throat in them...at 3.36" with BT's I'm jammed well into the lands....not sure about the new 270, haven't shot, or even seen it yet.

Sent from my DROID RAZR HD using Tapatalk
 
Nice group. Looks like you are well on your way.
You might want to try seating the bullet deeper and walk that bullet into the group.

JD338
 
JD338":16vlre8a said:
Nice group. Looks like you are well on your way.
You might want to try seating the bullet deeper and walk that bullet into the group.

JD338

Thanks! What you go out .010 or .005 at a time?
 
DrMike":z989ov3c said:
It is always comforting when the rifle and load act as anticipated. Fine grouping. I will not be surprised if it is repeatable.

You are probably so sick of requests but will you do a QL?
3.36"
Nosler 130 Grain Ballistic Tips
H4831 SC
WLR Primers
Nosler Brass
24" Barrel
Thanks in advance!
 
Palouser":37x8ekt1 said:
DrMike":37x8ekt1 said:
It is always comforting when the rifle and load act as anticipated. Fine grouping. I will not be surprised if it is repeatable.

You are probably so sick of requests but will you do a QL?
3.36"
Nosler 130 Grain Ballistic Tips
H4831 SC
WLR Primers
Nosler Brass
24" Barrel
Thanks in advance!

Code:
Cartridge          : .270 Win. (SAAMI)
Bullet             : .277, 130, Nosler BalTip 27130
Useable Case Capaci: 60.832 grain H2O = 3.950 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Hodgdon H4831 SC

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step    Fill. Charge   Vel.  Energy   Pmax   Pmuz  Prop.Burnt B_Time
 %       %    Grains   fps   ft.lbs    psi    psi      %        ms

-20.0   85    48.32   2472    1764   31540   8955     84.1    1.465
-18.0   87    49.53   2538    1859   33789   9279     85.6    1.426
-16.0   89    50.74   2604    1957   36207   9598     87.1    1.387
-14.0   92    51.94   2671    2059   38810   9909     88.5    1.343
-12.0   94    53.15   2738    2164   41616  10211     89.8    1.299
-10.0   96    54.36   2806    2272   44632  10503     91.1    1.257
-08.0   98    55.57   2874    2384   47912  10784     92.3    1.216
-06.0  100    56.78   2942    2499   51448  11051     93.5    1.177
-04.0  102    57.98   3011    2617   55278  11304     94.5    1.139  ! Near Maximum !
-02.0  104    59.19   3080    2739   59432  11541     95.5    1.102  ! Near Maximum !
+00.0  107    60.40   3150    2864   63946  11760     96.4    1.067  ! Near Maximum !
+02.0  109    61.61   3220    2992   68861  11960     97.2    1.032  !DANGEROUS LOAD-DO NOT USE!
+04.0  111    62.82   3290    3124   74222  12140     97.9    0.999  !DANGEROUS LOAD-DO NOT USE!
+06.0  113    64.02   3360    3259   80088  12297     98.5    0.967  !DANGEROUS LOAD-DO NOT USE!
+08.0  115    65.23   3430    3397   86502  12430     99.0    0.935  !DANGEROUS LOAD-DO NOT USE!
+10.0  117    66.44   3501    3538   93518  12538     99.4    0.905  !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba    107    60.40   3311    3165   76866  11763     99.7    0.988  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    107    60.40   2941    2497   52183  11175     89.1    1.168
 
Palouser":1oxgaig4 said:
JD338":1oxgaig4 said:
Nice group. Looks like you are well on your way.
You might want to try seating the bullet deeper and walk that bullet into the group.

JD338

Thanks! What you go out .010 or .005 at a time?

I would go .005" (1/4 turn on the seating plunger) increments and walk it in.

JD338
 
Ridgerunner665":2n1yd5tv said:
Load that to 3.34" and watch it print a bughole....maybe, lol.

My 30-06's don't have that much throat in them...at 3.36" with BT's I'm jammed well into the lands....not sure about the new 270, haven't shot, or even seen it yet.

Sent from my DROID RAZR HD using Tapatalk

Thanks, I'll try it!
 
JD338":b1gvr7ua said:
Palouser":b1gvr7ua said:
JD338":b1gvr7ua said:
Nice group. Looks like you are well on your way.
You might want to try seating the bullet deeper and walk that bullet into the group.

JD338

Thanks! What you go out .010 or .005 at a time?

I would go .005" (1/4 turn on the seating plunger) increments and walk it in.

JD338

Will do thanks!
 
Well after 40 plus years of loading for the 270win. I really do believe that the 130gr. Is the pet grained bullet for the 270.
I have always had good accuracy with my rifles using IMR4350 but recently started playing with 4831sc and I truly believe that my accuracy is going to get to the next level. I believe .25MOA is possible.

Blessings,
Dan
 
That's a gratifying start with your S.C. production M70 Sporter. I haven't heard of any complaints from that line.

From the looks of your range, you should be able to take full advantage of that .270Win/130gr BT combo and reach out far and straight.

sask boy":3vxqzaab said:
Well after 40 plus years of loading for the 270win. I really do believe that the 130gr. Is the pet grained bullet for the 270.
I have always had good accuracy with my rifles using IMR4350 but recently started playing with 4831sc and I truly believe that my accuracy is going to get to the next level. I believe .25MOA is possible.

Blessings,
Dan

I have always found H-4831 to be a smidgeon more accurate than IMR-4350 but never found IMR-4350 to be less than good. An excellent situation for us .270W aficionados! I keep trying the RL-19 & -22 offerings and found them to be ok to very good but never better than the H-4831 or IMR-4350. I'm currently being teased with the numbers that IMR-7828 and 150gr bullets promise so I'll play around with that combo this spring.
 
CatskillCrawler":34d0y7g6 said:
That's a gratifying start with your S.C. production M70 Sporter. I haven't heard of any complaints from that line.

From the looks of your range, you should be able to take full advantage of that .270Win/130gr BT combo and reach out far and straight.

sask boy":34d0y7g6 said:
Well after 40 plus years of loading for the 270win. I really do believe that the 130gr. Is the pet grained bullet for the 270.
I have always had good accuracy with my rifles using IMR4350 but recently started playing with 4831sc and I truly believe that my accuracy is going to get to the next level. I believe .25MOA is possible.

Blessings,
Dan

I have always found H-4831 to be a smidgeon more accurate than IMR-4350 but never found IMR-4350 to be less than good. An excellent situation for us .270W aficionados! I keep trying the RL-19 & -22 offerings and found them to be ok to very good but never better than the H-4831 or IMR-4350. I'm currently being teased with the numbers that IMR-7828 and 150gr bullets promise so I'll play around with that combo this spring.

That is great to hear! I am lucky as my "range day" is in my front yard and I can walk inside and load another and walk out and shoot. This is where I hunt as well and there are quite a few "long" shots as there aren't many trees!
 
CatskillCrawler":3o7f2z5m said:
I have always found H-4831 to be a smidgeon more accurate than IMR-4350 but never found IMR-4350 to be less than good. An excellent situation for us .270W aficionados! I keep trying the RL-19 & -22 offerings and found them to be ok to very good but never better than the H-4831 or IMR-4350. I'm currently being teased with the numbers that IMR-7828 and 150gr bullets promise so I'll play around with that combo this spring.

If you want to get teased some more, take a look at the MagPro data for the 270Win. In a 24" test barrel, velocities were 3200 for the 130, and 3000 for the 150. I can get a copy of the data if you need it. I think MagPro data availability has trimmed down some from Accurate (Western) these days. They used to list it in several cartridges for which they no longer list it. And it was stellar in those rounds (like the 243Win...).
 
dubyam":1glywjru said:
CatskillCrawler":1glywjru said:
I have always found H-4831 to be a smidgeon more accurate than IMR-4350 but never found IMR-4350 to be less than good. An excellent situation for us .270W aficionados! I keep trying the RL-19 & -22 offerings and found them to be ok to very good but never better than the H-4831 or IMR-4350. I'm currently being teased with the numbers that IMR-7828 and 150gr bullets promise so I'll play around with that combo this spring.

If you want to get teased some more, take a look at the MagPro data for the 270Win. In a 24" test barrel, velocities were 3200 for the 130, and 3000 for the 150. I can get a copy of the data if you need it. I think MagPro data availability has trimmed down some from Accurate (Western) these days. They used to list it in several cartridges for which they no longer list it. And it was stellar in those rounds (like the 243Win...).

Wow...I'll take a look.
 
I checked the most recent data and it's a little lower than the 6-8yr old stuff I have here. Still, impressive velocities for a 270Win. I like MagPro, and intend to burn a bunch of it in my son's 270WSM when he graduates up from the reduced loads we're going to start him on.
 
With Dr. Mikes QL data, 61.0 Grains of H4831SC, should push it out at around 3,185 fps. I'll have to Chrono it but that is plenty for me.
 
Yes you'll need to chrono it. Otherwise you're fumbling in the dark really.

Really, 3100fps is plenty with that bullet. Some testing I did with 130g BTs in wet newspaper showed much reduced penetration when pushed hard. At slightly more moderate impact speeds it performed a lot better.

The tests are in the Bullet Test section under .277 (unsurprisingly!).
 
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