.270 Win loads

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gimposaurus

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Anyone got a good FAST load for the old .270, using a 140gr bullet, pref the Nosler accubonds?

I'm looking for 3000+, preferably closer to 3100, out of a 24" barrel. Just looking for a powder to use as a starting point really, I want to make the most of the .270
 
Let me get this straight.

You want an uber fast load. You don't give a white rats left a$$ whole if it is accurate. You don't care if the load is abusive, that it may be over max, and will either blow up your gun in a few shots or cause permanent damage to the weapon.

Does this sum up the load you want us to give you?????????
 
No, I want to know what powder people have been getting good speeds with to use as a starting point for developing an accurate load. If hornady can get 3100 with a 140gr SST in their light mag ammo, and make it safe to use, then I have no doubt I can do the same safely.
 
I use the Hornady 140 SPBT. I could achieve velocities over 3000fps with
Reloder 19
Reloder 22
RS Magnum
IMR 4831
Win WXR

Although it did not produce the fastest loads, the IMR 4831 was the most accurate. Your results will most likely be different.

Hornady achieves their high, safe velocities by
1. Using powders that are not commercially available to the public; and
2. They use very long drop tubes to insert the powders into the cases. This impacts the powder into a very dense load. If you take their cartridges apart, you will never be able to get all the powder back in.
 
Unless you are just stuck on the 140 gr bullets try the 130 gr. My favorite load is using a sierra 130 gr SPBT, CCI Large rifle magnum primer and 58.4 gr IMR 7828SSC. It gives me close to 3000 fps. Not quite as fast as you seem to want but the accuracy is great. I have taken quite a few whitetails with this load at ranges out to 350 yds (long shot for Louisiana), never had to shoot twice.

My sons favorite is the Speer 150 gr SP, CCI large rifle primer and 51.3 Gr of IMR 4831. This load is not super speedy but very accurate out of his Remington 710.
 
I have been able to get some very accurate loads with the 140 AB using both H4831SC and RL22. The RL22 is a little faster. Both loads were more accurate (but no faster) using Federal GMM Mag primers than the standard primers. From ~ 1" at 100yds to ~0.5" just by changing the primers to mags.

Never clocked them but I'm pretty sure that they are not over 3Kfps.
 
My loads.

Hey There:
For what it's worth. 150 grain Nosler BT, 56.0 grains of AA3100, CCI 250 primers. 1/2" groups at 100. At around 2800 fps. With the difference in BC.
between the 130 and the 150 the drop is about the same. With in an inch or two at 400 yards. If the 130 is at 3000 fps or just under. The 140 falls in between. 400 is stretching things anyway. Kind of what does your gun like thing.
 
I like the 140s for the higher BC, after 2-300 yards they catch up with the 130's, and have more energy at all ranges.

I will give 4381SC a go, it seems to be about the right speed.
 
Here are some velocities a guy I know got out of a 22" barreled howa with 130 gr ballistic tips, there were NO pressure signs even with the top loads. He wanted to see how fast he could get, just for interests sake

ADI 2209
54g 2940
55g 2970
56g 3041
57g 3076
58g 3146
59g 3226

Win 760
54g 3037
55g 3039
56g 3073
57g 3089
58g 3195
59g 3241


Also, re pressure, take a look in the IMR reloading manual, pressures for .270 are about the same as for any other cartridge, the notoriously 'loaded to low pressure for autoloaders' .280 rem has higher pressure for all loads than the .270


Edit,what the hell, my post is supposed to be AFTER the one below this
 
If hornady can get 3100 with a 140gr SST in their light mag ammo, and make it safe to use, then I have no doubt I can do the same safely.
Click to expand...

Hornady uses propriatory powders not available outside. You can`t buy them to copy their loads, and it appears other manufactures can`t either. Federal with their own stuff is the only other company producing ammo that achives these velocities- Alliant is a sister company of Federals and likely supplys their powder. If it was easy to do safely Norma, Winchester, Remington, ect would all have their line of similar ammo. if the powders producing this type performance was marketable to the public, Hodgdon, Alliant, Ramshot, ect would all be claiming theirs was the best and made the fastest ammo.
The 270 operates at 65K psi the max of any cartridge produced. Some are at the same psi but none are hotter. I don`t think it prudent to experiment with velocities faster then SAAMI ammo from most makers gives without a lab to insure where you stand with your pressures. I`d hate to read of a accident due to a little too much pressure that snuck up on you.
just my $0.02.
 
If hornady can get 3100 with a 140gr SST in their light mag ammo, and make it safe to use, then I have no doubt I can do the same safely.
Click to expand...
+1 to what ol'joe just said.
You can't, because you can't get the powder.

There are gonna be a lot of rounds like that in the future.

A bunch of new stuff coming from Hornady is like that already.
Lever-Revaluation and .327 Magnum come to mind.

We will never be able to duplicate it with reloads, because we can't get the "magic" powder they use.

1224.jpg
rcmodel
 
Just loaded up some .270 Winchester.

55gr IMR 4350, CCI large rifle primer (200), Winchester brass (new), Nosler 130gr Ballistic Tips.

Spitzer Boat tail design with plastic tip have great performance for speed, accuracy.

Should be flying at 3000-3050fps.

I was using the powder/primers I had on hand. I prefer to use Federal Match Primers over CCI for premium loads. I've had a few CCI primers that fell apart out of the box.

From what I have seen, the fastest published load data for 130gr in .270 Win is 3100fps.
 
Currently working on 130gr ballistic tip load, 3184FPS average, 7.2FPS SD, 18FPS ES. .5MOA average.

P2060269.jpg

P2060270.jpg
 
Loads a little stiff isn`t it?
ADI shows 54.3 gr max for 3012 fps from a 24" bbl with AR2209 and a 130 gr on their web page. An extra 170 fps with 2.5gr more powder would have me a bit puckery......JMO no flame intended
 
I like this load: 150 gr Sierra Gameking BTSP/ 58.0 IMR 7828/CCI 250/COL 3.270" with a moderate Lee Factory Crimp. In my rifle, I get about 2925 f/sec and 1.25 inch 100 yard groups. SD is usually around 10 f/sec

For another rifle (same make and model, with a whole lot less use), the best hunting load I could come up with was: 140 gr Hornady BTSP/59.5 gr IMR 7828/CCI 250/COL 3.205" gave me about 3040 f/sec with 11.44 SD. I did not shoot this for groups as the rifle ahs a damaged rear sight, and no scope as yet.

Both rifles have 24" barrels.
 
Just loaded up some .270 Winchester.

55gr IMR 4350, CCI large rifle primer (200), Winchester brass (new), Nosler 130gr Ballistic Tips.

Spitzer Boat tail design with plastic tip have great performance for speed, accuracy.

Should be flying at 3000-3050fps.
Click to expand...
You don't KNOW? Chronys are inexpensive........
 
I use IMR 4350 in my 270's. It has worked very well. However, I am not a fan of throwing my rounds down range just to see how fast I can do it. I am more of an accuracy guy. So I don't really have anything for you on velocity. Just be safe if you're loading around the max.
 
accurate 270

I've read all these posts, however none mention barrel twist rates.. I've inherited a custom 270 with a 21 1/2" barrel with a 1:12 twist. I've tried H4831sc, and IMR 4831, primers.. 9 1/2, fed 210 and win mag. velocites from 2600 to 3100.... cannot get that elusive sub 1" group at 100yds.... With this twist rate should I go lighter or heavier on the bullet weight?
 
mappleman, welcome to THR.
You might know that the standard twist used by most companies is 1in10 for the 270 Win.
A slower twist of 1in12 will favor lighter bullets more than likely. 130gr bullets should be ok in that rifle, you just need to keep your velocity up in a reasonable area.
150gr bullets might not be as good for accuracy.

NCsmitty
 
It's on the list, along with a Lead Sled.
Click to expand...

stay away from the lead sled for awhile... it is a good piece of equipment, but to achieve the performance it is marketed as having, you have got to understand your rifle in and out, and how it responds to slight pressure changes on the cheek and forearm, or the lead sled will drive you bat s..t crazy. also, if you run lower end scopes, it is notorious for eating those up as fast as you can get a new one mounted...

i'm a fan of the lead sled, but it is not as easy as it looks to use it right...
 
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