270 WIN

[kilotanker22]

I have loaded for a 270 WSM recently and a 270 WIN years ago. I just bought a TC Venture 2 rifle in 270WIN since I was so thoroughly impressed with my TC Venture in 270WSM.

I am posting this here as a feeler to see what powders treat you all the best with 130 grain pills. The only powder I have on hand that is in the ball park for the 270WIN is H-4350. I really want to duplicate Factory 270WIN velocities with a 130 grain bullet. Generally speaking factory rounds are pushing between 3000-3100 FPS. Do you all think I will get there with the H-4350 and be able to fill most of the case? all three of my manuals have that bullet and powder topping out right around 55 grains for charge weight. Later tonight I will see how much 55 grains fills the Winchester Cases I bought.

Powders available locally in that burn rate range are RL19, RL17,RL22, H-4350, IMR-4831.

So, please tell me about your experience with H-4350 in the 270WIN.... Thanks all.

[sako2]

Kilo can you get imr 7828

[cptjack]

my m70 tack driver uses 4831sc jack conners load

[hooligan1]

I've got super results with IMR4451, and 130 gen Btips.
Results may vary, of course but it was around 3115 avg, no sign of pressure .

[kilotanker22]

Originally Posted by sako2

Kilo can you get imr 7828

Yes I can get IMR 7828

[paknheat]

I’ve had pretty good luck so far using Reloader -22 with the 130 SST. Seems like it does good with the 140gn Sierra btsp.


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[603Country]

H-4831 and 4831sc are my 270 powders, but H-4350 will work great. And I used IMR4064 for a few years, and it worked great also. The Lyman 49th or 50th will give you all the info you need.

[sako2]

If you can get give it a try. My 270 loves it.

[totaldla]

H4350 is my preferred powder for 270 Winchester. My rifle has a 24" barrel, so 3100fps is doable. But I run my 130gr right at 3000fps.

[Scorch]

IMR 4350

[kilotanker22]

I also ended up with a Remi from 700 ADL in 270 win.

I was able to achieve 3100 fps in a 24 inch barrel with a 130 grain bullet and H-4350. Using the Speer 130 grain BTSP and Sperry's listed max load for that bullet and powder.

10 shot string
Avg 3102 fps
ES 23 fps
SD 7 fps

No pressure signs really. I am going to stop there for my powder charge. And tune this load for harmonics. After 3 rounds this gun opens the groups up. I presume this is due to the pressure points in the fore end. The first three shots are touching on each of 5 groups. Then strings the next two shots to the right by about 1 MOA.

The first two things I am going to do with this rifle are a trigger and stock upgrade.

[Pathfinder45]

Does it have a Walnut stock?

[stagpanther]

I've had very good results using 6.5 staball with smaller bullets and ramshot magnum with the bigger ones.

[cdoc42]

Over the years, in several .270's, I've tried various powders- RE-17/19;H4895, H-1000, IMR 4064, IMR/H -4350, IMR/H-4831.

I used several bullets as well- Nosler, Speer, Sierra, Hornady, Barnes in 100gr, 130gr, 140r and 150gr.

Most success with H-4831, as you can see: I can't say I often broke 3000 fps with 130gr but I was looking for accuracy, not necessarily speed.

Winchester Model 70 Featherweight, H4831, 60.0gr and only likes the Speer 130gr flat base; will not shoot the 130gr boat tail as well, not any other others

My Original 1968 Remington Model 700 only liked 150gr bullets. Shot enough to get vertical stringing despite free-floating and glas bedding. Sent to Remington when they had a handle in their business and they supplied a better barrel, but to this day, still likes Hornady 150gr Spire with H-4831 56.0gr. at 0.02" seat. It will do well with a 130 SST and H-4350, seated at 0.02".

New Model Remington 700, stainless: H4831 56.0gr with 0.015" seat but only with Hornady 140gr SST

Winchester Model 70 with BOSS- great Accuracy but burned it out. Not unusual to get 1" groups at 200 yds with Hornady 130 SST and H-4831. Had it converted to a 25-06 by Hart

Sako top-of-the line model; I forget which since I sold it. But shot well with Remington 130gr standard bullets using H-4831.

[Pathfinder45]

Just goes to show that each rifle has it's preferences. So far, my 270 is far and away most accurate with a recipe consisting of a sufficient charge of Norma N-205 to drive 150 grain Nosler Partition bullets right around 3,000 fps while using Federal cases and CCI-200 primers; the rifle being a Winchester model 70 Classic Sporter from the 1990's with a Walnut stock. I've got some other powders that I am hopeful to try out when I get the right opportunity.

[Sure Shot Mc Gee]

Don't have much experience using Hodgdon smokeless. But I do have a 270 win. With IMR 4350 which ballistically is the same as H I get my 130s bumping 3200 fps at muzzle. Thats 57. trickled into the pan of my RCBS beam scale.

[GeauxTide]

Hornady X says IMR4831 with 130, 140, and 150.

[Unclenick]

There are 130-grain and 150-grain universal accuracy loads on Dan Newberry's website using IMR4350 and H4831.

[mxsailor803]

I’ve been reloading for .270win for close to 20 years now. One of the powders I prefer is 4064. Is it the best? No. But it is super versatile. I use it from my .223 bolt actions, .243’s, .270’s, .308’s, and 30-06. Now I personally don’t try to run my bullets wide open either. My .270’s with a Sierra ProHunter 110gr I use for whitetails is running just under 2900fps.

[Birdogz]

I've had great results for30 years with IMR 4350 and 130 grain Core-Lokt bullets. H4350 is similar, so give it a try.

[scatterbrain]

Pathfinder45, where are you getting the Norma 205 powder?

[ReloadKy]

I have reloaded for 270 a lot over the last 5 years. Mostly all with 130 gr pills.I have had great results with h4350 and IMR 4451. I worked up a load using h4350 and 130 gr INterlocks and was getting 3040 at the muzzle. I also worked up a load with IMR 4451 and 130 gr nosler ballistic tips that was getting 3030 with single digit ES and SD of 2. Just so happened that the IMR4451 load shot sub moa too.

[cdoc42]

I recognize that burning rates are not absolute, but relative, and may even change to some degree, depending on the lot produced. But the relative rates at least give one some sense of where they stand in relation to each other.

For example, Lyman 50th Ed lists 127 powders from "fastest" to "slowest." Bullseye is 4/127. IMR 4350 is 101/127; H-4350 is 102/127 and H-4831 is 111/127.

Do those of you who use IMR 4451 have any idea where it might be placed in the burning rate?

[bamaranger]

My Rem 700 ADL has the shorter 22" barrel. I just recently worked up a max load (Sierra manual, edition #5) of IMR4350 and bulk 130 grain bullets, and it provided 2950 fps. That is the highest velocity I've gotten with 130gr pills since acquiring the rifle twenty years ago. I have used H4350 as well, but that was before I acquired a chronograph.

A pal has a 24" Rem 700 ADL, and gets about the same velocities with a grain less powder, and he uses either H4350 or IMR4350 depending on what is available. I'm thinking the Jack O'Conner, the high priest of the .270, liked H4350..........but that is from memory.

[2ndtimer]

Originally Posted by cdoc42

I recognize that burning rates are not absolute, but relative, and may even change to some degree, depending on the lot produced. But the relative rates at least give one some sense of where they stand in relation to each other.

For example, Lyman 50th Ed lists 127 powders from "fastest" to "slowest." Bullseye is 4/127. IMR 4350 is 101/127; H-4350 is 102/127 and H-4831 is 111/127.

Do those of you who use IMR 4451 have any idea where it might be placed in the burning rate?

According to this chart, IMR-4451 is right after IMR-4350 in burning rate, so slightly slower than IMR-4350
https://imrpowder.com/wp-content/upl...rate-chart.pdf