Home
I've only recently started loading for .270, and I was surprised to get 3230 and 3220 velocities. Accuracy was better than 3/4 with 60 grains of H4831sc, hornady cases, fed GM210, mrx 130s and 26 inch barrel. I had some slight ridges on the edges of the primer dent but it didnt seem excessive. I only fired a couple of rounds to cause as always I was in a rush. It just seems fast to me as I'm trying to break 3200 with my buddies .270wsm using a 130 barnes tipped magnum win primers and imr7828 max loads from nosler book. It should be over 3300 or so but only gets about 3100 with his 25 inch sako A7. I know its plenty fast, but you know.. Is there a better powder I should use for the 270wsm?
I had a 25" Lilja tube on my 270 and with R22 and 130's or 135's I was in the 3300 range, spect with R17 I'd get the same.

My last 270 tube was a 23" Lilja and with R17,R22 and H4350 and 130's it'd run right in the 3200 range. So I think that your speeds are right in there.

A long barreled 270 is incredibly underrated!

Dober
Give RL17 a try in the wsm I think you will pick up some speed from it.
When I finally got a 24" barreled .270Win I started getting 3240+ with handloads and cheap Federal Power Shok.

My 24" barreled .270WSM rarely got over 3300 and most loads went 3250 or so. Sold it, don't like any WSM because they don't work with neck sizing in my experience.

You don't get much better than H4381sc in the .270Win but I've liked MagPro, RL19 and 22, and have just started working with RL17.
I shoot a 26" barreled 270 Win. and with full on loads it shows 3200 with 130 grain bullets. This is from an old Ruger 1B.
Originally Posted by Mark R Dobrenski
A long barreled 270 is incredibly underrated!

Dober


Couldn't agree more!

Both JOC and Ken Waters found 100+ fps when going from 22" to 24"

I found the same.
Makes me want to try a 26" .270Win.
Originally Posted by nsaqam


You don't get much better than H4381sc in the .270Win but I've liked MagPro, RL19 and 22, and have just started working with RL17.


I was running H4831 in my 270win and getting 2975fps with 140grain AB switched to RL17 last year and now velocities with the same bullet are 3100fps. I think you will like it in the 270win
Thanks guys, I hate to tell my friend that his wsm is a waste of powder... I got to go for a few mins, but ill be back soon.
Tad more than 3200 fps with RL-22 and Hornady 130 Spire Points in a 24" Model 70.

In a couple of 22" Model 700's I can run right at factory listed velocity, maybe 3060-3080 fps, with a book max of H-4831 (the long cut variety).

RL-22 gave me the best velocity and best accuracy in my .270's and a .300 WM for the first 8 pound jug. But I had an unsettling experience with the second jug. The exact same charge I'd been using gave over 3300 fps in the 24" 270 and I forget the velocity in the .300 but it had the same effect which told me pressure was beyond reasonable.

My notes for the second jug always indicate xx grains "fast" RL-22.
Originally Posted by TheWarrior
Thanks guys, I hate to tell my friend that his wsm is a waste of powder... I got to go for a few mins, but ill be back soon.


But the brass is more expensive, doesn't feed as well, factory ammo is more expensive, less available, harder to reload.......what's not to like about the WSM? grin
In a Pre-64 Model 70 with a 24" barrel and using W-W cases, F215 primers, 55 grains of IMR 4350, and the 130-grain Partition, I get 3,013 fps.
A friend of mine is a Pre-64 Model 70 nut and a .270 nut and he uses that load for everything, including elk. He told me he has tried about 20 different loads in the .270 WCF and he keeps coming back to it.
Originally Posted by Jocko_Slugshot
In a Pre-64 Model 70 with a 24" barrel and using W-W cases, F215 primers, 55 grains of IMR 4350, and the 130-grain Partition, I get 3,013.
A friend of mine is a Pre-64 Model 70 nut and a .270 nut and he uses that load for everything, including elk. He told he he has tried about 20 different loads in the .270 WCF and he keeps coming back to it.


I have a 1949 Model 70 that I use the same load of 55 grains IMR 4350 with a standard large rifle primer, and they chronographed at just over 3100. I also use the Combined Technologies bullet and have gotten great results on deer and antelope.

[Linked Image]
With 3 different 270's currently, I get 3150-3180 with 22" barrels & 3220-3240 from a 24" barrel.

Either RL-22 or Norma MRP is what I'm using now, but I'm testing RL-17, Win 780 & IMR-7828SSC now.

MM
My 270 (Rem 700 mtn rifle) with a 22" barrel gets a hair over 3100 with RL19 and 130 Nosler Solid base bullets. I don't know the charge off the top of my head.

RH
I have had no trouble getting 3100-3200 fps with 24" barrel and 3050-3100 fps with 22" barrel.

Lou
Originally Posted by shrapnel

I have a 1949 Model 70 that I use the same load of 55 grains IMR 4350 with a standard large rifle primer, and they chronographed at just over 3100. I also use the Combined Technologies bullet and have gotten great results on deer and antelope.

[Linked Image]


Wow! Kind of an explosive bullet, if that's all that's left of the deer!


wink
Originally Posted by nsaqam
. . . don't like any WSM because they don't work with neck sizing in my experience.


Not true - just have to use a neck sizing die, NOT a FL die!!!
What a sad thing to happen to a deer heart. Have you no shame? Pickled Deer Heart is one of life's great treat's. As for the 270 I would get 3170 fps out of my old Super Grade. Had a 24 inch barrel on it. 57.5 gr of IMR-4831 and 130 gr Speer SP's shot a lot of deer with that load over the years.
Originally Posted by TXRam
Originally Posted by nsaqam
. . . don't like any WSM because they don't work with neck sizing in my experience.


Not true - just have to use a neck sizing die, NOT a FL die!!!


I do just fine with the 270wsm and a neck die.
I just finished up a 130gr. TTSX load in my 24in. 270 WSM last week. Chrono'd 15 rounds which averaged 3,361 fps and had a spread of only 27 fps.

I use Norma brass, Fed 215M's and RL 22........never had ANY issues with reloading, function or reliability in any of my WSM's(3).

Good luck..........
Originally Posted by Jim in Idaho

In a couple of 22" Model 700's I can run right at factory listed velocity, maybe 3060-3080 fps, with a book max of H-4831 (the long cut variety).


That's what I see too. I've used this load in probably 30 different .270's using 130 gr NBT's. Its consistently 1MOA or better. JOC had it right with this combination.
Warrior, what barrel are you running on your 270 Winchester? Just curious...

I would try some RL 25 in the 270 WSM.

I have seen 3200 in the 270 Winchester with the 130 gr Barnes XLC and 65 gr of RL 25,from a 22" barreled M70 Classic.This was the Barnes max with that bullet.
Its a pacnor #3 5 groove 1-10 not stainless
Originally Posted by TheWarrior
I've only recently started loading for .270, and I was surprised to get 3230 and 3220 velocities. Accuracy was better than 3/4 with 60 grains of H4831sc, hornady cases, fed GM210, mrx 130s and 26 inch barrel. I had some slight ridges on the edges of the primer dent but it didnt seem excessive. I only fired a couple of rounds to cause as always I was in a rush. It just seems fast to me as I'm trying to break 3200 with my buddies .270wsm using a 130 barnes tipped magnum win primers and imr7828 max loads from nosler book. It should be over 3300 or so but only gets about 3100 with his 25 inch sako A7. I know its plenty fast, but you know.. Is there a better powder I should use for the 270wsm?


Long barrels are a great equalizer.........my 25 inch bbl 270W does 3200fps with 60grs of H4831 long cut and 130gr BT's pretty easy.

Probably not much diff between a long barreled 270W and a 270WSM.......


Casey

How many grains of RL22 ?
Originally Posted by BobinNH
Warrior, what barrel are you running on your 270 Winchester? Just curious...

I would try some RL 25 in the 270 WSM.

I have seen 3200 in the 270 Winchester with the 130 gr Barnes XLC and 65 gr of RL 25,from a 22" barreled M70 Classic.This was the Barnes max with that bullet.


I might have to try some of the RL25, if I can get my hands on some. QL is showing it doing good things.
Originally Posted by TheWarrior
Its a pacnor #3 5 groove 1-10 not stainless


OK, thanks!

Those are good velocities wink


Calvin, I figure if the RL25 works well in the standard 270,and in the 7RM, it should be good in the 270WSM as well.....

I also recall that Ross Seyfried wildcatted the 270 WSM off the 300WSM case before the 270 became "standard",and that R25 was among the better powders for it.
OK, ive heard of this but this is the first time ive seen it. Seems my .270wsm loads were slow, but only in my friends Sako A7. We shot the same loads through a new Savage his father owns and speed went from 3100 or so in the Sako to 3300+ and 3450+ with a max load of IMR 4350 using 130grain bullets. I guess the Sako is just slow?
Originally Posted by TXRam
Originally Posted by nsaqam
. . . don't like any WSM because they don't work with neck sizing in my experience.


Not true - just have to use a neck sizing die, NOT a FL die!!!


That may very well be the case with the WSM but my 270win works fine sizing just the neck in a FL die. As do all my other -06 based cartridges.
Originally Posted by TheWarrior
OK, ive heard of this but this is the first time ive seen it. Seems my .270wsm loads were slow, but only in my friends Sako A7. We shot the same loads through a new Savage his father owns and speed went from 3100 or so in the Sako to 3300+ and 3450+ with a max load of IMR 4350 using 130grain bullets. I guess the Sako is just slow?


Warrior that is not uncommon....velocities can vary widely rifle to rifle,and I think throats,leade,and internal barrel dimensions,number of lands and grooves, material, and finish have the biggest effect,assuming the same bullet and load.These all affect the resistance the bullet encounters as it travels down the bore.

This is why one guy will say a 270WSM is not much faster than a 270 Win,and another will say it's as fast as a 270 Weatherby.
I really don't want to a new thread about 270 loads, but I'm interested in using H4350 with 130gr GMX bullets. Anybody using H4350 with 130gr bullets? I'm thinking around 55gr- 56gr would be max.
That would indeed be about max.
The most I've been able to squeeze out of a 20" Finnlite has been 2950. In my 22" M700 it's been 3100. I've loaded for a few other 22" bbld 270s and none have done any better.
I loaded 53.5 of H4350 with a fed magnum primer and the 130 GMX. Didn't clock it but it gave me .318" at 115 metres for three shots.
Same load also very accurate with the Sierra Gameking in the 130gn.
rob
© 24hourcampfire