I am looking for detailed load data for a .270 Win with 130 grain Nosler Partition bullet (the gun has a 22" barrel)?

Anyone using IMR 3031 or other fast burning powders (velocity around 3000) with this caliber - bullet combination? I want to avoid velocity loss and muzzle blast?


Thanks!
Mike

IMR3031 is way too fast-burning for the bullet you mention. As a result, velocities will not be in the range you desire.

You need a slow powder to get the higher velocities. For instance, IMR7828 or IMR4831.

Data from the IMR site: http://www.imrpowder.com/data/rifle/270win-2005apr03.php

Good luck,
RSY

In my 270 I have used RL22, SC4831 and Mag Pro with the 130 NP. I quit using RL22 due to velocity loss at lower temperatures. I was loosing 100-150 fps during the winter vs summer temperatures. SC4831 with 59 gr I get 3100 and no loss during colder temps. With MagPro I get 3160 fps but it does show a 50 fps loss at colder temps - which is not much and MagPro meters so well - its a very dense powder and even heavy doses take up very little case capacity.

4831 and the .270 is a marriage made in heaven, no other way to go IMO...

I use the old stuff, called 4831 Surplus, 4350 DATA POWDER, etc. as I have a large supply, the stuff that Jack O used..It gets me about a 100 to 150 FPS extra over the new stuff and less pressure...but IMR or H-4831 is the powder for the .270..

As stated above, H4831 is your best bet.

If you are dead set on using a faster powder, start with 46gr of IMR4064 and work up from there.

quote:

Originally posted by Atkinson:
4831 and the .270 is a marriage made in heaven, no other way to go IMO...

I've used the above recipe for many years and it's as good today as ever. However RL22 is also a very fine powder for the .270 Winchester as is Win WMR.

IMR4064 sounds interesting! How about performance at different temperatures (cold and warm weather conditions)?

In the meanwhile I found this IMR4064 load: http://www.reloadersnest.com/detail.asp?CaliberID=39&Bullet=Nosler+Partition&LoadID=3737


What is most important for me is:
1) accurate
2) independent for all weather conditions
3) speed about 3000
4) faster powder for 22" barrel
5) low muzzle blast


Anyone can write more about IMR4064 and the .270 Win with 130 gr Nosler Partition?

I have never tried a fast burner in the .270. For 130 grain bullets, I would start with either H-4831SC (work up to 58-60 gr) or IMR-4831 (work up to 56-57 gr). There are a slew of other powders that work great with the .270 and 130s, but it's tough to beat the 4831s.

-Lou

Mike: FYI: here is a quote from Ken Waters "Pet Loads":

" Jack O'Connor once told of firing over 10,000 handloads from a pair of 270 rifles during a single year, accuracy testing all conceivable loads. This was before the appearance of Hodgdon's 4831, and 49.5 grains of 4064 turned out to be the best prescription for 130gr bullets...."

Please note that this is very old data and IMR's current website lists 47.5gr of 4064 as a max load. But it does show that some pretty respectable 270 experts have used 4064.

Your post reminds me of another thing Jack wrote. I don't remember the load, but Jack said (paraphrased), "if a .270 won't perk with xx grains of IMR 4064 and a good 130 grain bullet then there is something wrong with that rifle."

IMR4064 is a good accuracy powder for many of the mediums - .30-06, .308 and so forth. A bit too quick in the .270 to match the maximum velocities possible with other powders, at least nowadays when we can measure pressures accurately and realize just how hot some of those old loads were, but still a good'un if you want accuracy with a lower muzzle pressure - i.e. lower muzzle blast.

The IMR powders have never been know for their temperature insensitivity, however.

You wrote:
"What is most important for me is:
1) accurate
2) independent for all weather conditions
3) speed about 3000
4) faster powder for 22" barrel
5) low muzzle blast"

Having said all the above, I've been working with two .270's, one with a 23" barrel and one with a 22" barrel, and as the other folks said you still cannot go wrong with H4831 up to about 60 grains. I load 58 grains of H4831 and Hornady 130 gr. Interlocks for a mild and highly accurate load at 2990 fps in my 22" barrel. Firing it and a .308 150 grain 2800 fps load side by side there is almost no difference in recoil or muzzle blast. Go up to 59 grains for 3050 fps with the same great accuracy. These loads are completely safe in my rifles and actually pretty conservative.

H4831 is, IIRC, part of Hodgdon's Extreme series which is supposed to be insensitive to changes in temperature.

I'm thinking that load of 58 gr. of H4831 will match your criteria pretty well, right down to meeting the velocity. Of course your components may vary - primer, brass, etc., so you may have to vary the powder charge, but that should get you awfully close.

RL-22 is also great for accuracy and speed. I've had some lot to lot consistency issues with it, though YMMV.

RL-19 From 48.4 grains to 60.0 grains
Winchester WLR Primer

I currently have two 270's, both with 25 inch barrels. They both like 130 grain bullets and 56.0 gr. of IMR-4831. This gives me 3070 fps in one, 3150 fps in the other. There are no excessive pressure signs and accuracy is excellent. With a 22 inch barrel, I would expect a velocity around 3000 fps.

ActiveMike, First of all I would like to correct a common misconception for you:

Faster Powder Do NOT give higher velocities in shorter barrels. You will acheive optimum velocities in the powder burning range for your cartride. In 270 Winchester you will get better velocity in a 22" barrel with 4831, RL-22 and Magpro than you will with 3031 or 4064.

My favorite 270 is a 20" barreled lightweight Sako Finnlite. It shoots best with RL-22 and 130gr bullets, the following is a 300 yd group.....



Note the velocities even in a 20" barrel are close to 3100fps. Load the best powder for the cartridge and don't try to go faster for shorter barrels........DJ

Ther are lot of good powders out there but if you stick with the 4350-4831 either the IMR or the Hodgdon brands you cant go wrong they are some of the oldest and still some of the best available for a efficient bottle neck cartridge.

My Tupperware Special likes:

H4831SC and 130gr bullets in any brand or style

IMR-4350 and Hornady BT Interlocks. Don't know why but this is THE load for my rifle.

H4831SC and 150gr Partitions

ZM

Having read that all I think will stick to H4831 (SC).

Which COL should I you with the 130 gr Nosler Partition?

CCI 200 Primer okay for H4831 and .270 Win?

We always have the crowd that thinks 4350, 4831, RL 19 and Rl 22 are the answer to all of anyone's powder needs....

To answer the question that was originally asked...
And let the guy asking it make up his own mind...

Lyman's 47th Manual supplies the following data;

130 grain bullet ( Sierra 130 BT Used);

IMR 3031: 42.0 grains/ 41,600 CUP/ 2739 fps
Max: 47 grains/ 53200 CUP/ 3030 fps

IMR 4064: 43.5 grs/ 39000 CUP/ 2724 fps
Max: 49 grs/ 52400 CUP/ 3039 fps

I have found both IMR 3031 and IMR 4064 to be very accurate in my Husqvarna 270 and my Model 70 270. The Huskie has a 22 inch barrel and the Winchester has a 24 inch barrel.

IMR's 3031, 4895 and 4064 work well in a lot of cases, including Magnums. So with all the other mentioned powders, in the 270 you use 10 grains more on average of the slower powders and you get a big 100 fps with them & a 1000 CUP less in pressure What is your max point blank range and trajectory loss? NOT much (none in the real world of shooting)... Whatever floats your boat..

But for some of us that don't have to be trendy.... 3031 and 4064 were powders that worked just fine for the last 50 years or so.. IN A LOT of calibers...

cheers
seafire

Jack liked 4064 as it was not loud and it was accurate but his about only hunting load was 62 grs. of old surplus 4831 with any 130 gr. bullet....Same as mine, because he gave me that load and 20 lbs. of powder. I later bought 150 lbs. in a stainless steel drum within a heavy wood crate from another old gentle in Idaho, I still have that drum, 20 lbs. of powder or so...

quote:

Originally posted by ActiveMike:

Which COL should I you with the 130 gr Nosler Partition?

CCI 200 Primer okay for H4831 and .270 Win?

COL depends on your rifle and its magazine. You need to load to an OAL that is short enough to work through your magazine (assuming that you are not using the rifle as a single shot), but long enough so that it is just shy (maybe 0.01 inch) of touching the lands because this usually gives the best accuracy -- assuming that you can fulfill the second condition while fulfilling the first one, because the first one (working through the magazine) takes precedence.

In some rifles this recommendation that you load to just shy of touching the lands is not possible because the rifle has a lot of what is called freebore, meaning a smooth place in the bore before the beginning of the lands. In that case, load as long as you can and still have the loads work through your magazine, subject to the following condition.

You need to seat the bullet deeply enough into the case that the case neck is able to grip the bullet well; the usual recommendation is that it should be seated so that it is at least a bullet diameter into the case. If you use the Lee Factory Crimp Die -- which I recommend highly -- this is much less important because crimping the case mouth with this die allows the case to grasp the bullet well even though it may be seated only a short distance into the case mouth.

So the best thing is to experiment a bit with your rifle. Begin by loading too long and trying the load in your magazine and rifle chamber. Then gradually decrease the OAL by about 0.01 inch per try until you get a load that works well in your rifle's magazine and allows you to close the bolt without binding.

Yes. The CCI 200 primer is quite OK with the powder and caliber you mention.

Given a choice of brass and primer, I usually choose Winchester brass and the WLR primer. But other brass and primers work too, perhaps just as well or even better in some instances.