Powders for 270win

[msinc]

Check out alliants Rl16, they are claiming 3200+ with 130's

Funny you mention this...I actually bought a pound of it to try when I finally found the R26. Didn't really have it in mind for anything at the time, just figured it might do for some other calibers what the R26 does for some.

 

[Murray Brook]

I have a 22" barreled 270 Win BBR. I have what I consider a slow barrel as with 150 gr bullets my best vel prior to RL-26 was appx 2800 ft/sec. Using a max load of Rl-26 upped this to 2900 ft/sec. Still not earth shattering but none the less a gain of 100 ft/sec. The only problem was the accuracy just wasn't there. Stuck with IMR 4831.

 

[270WinDude]

I have a 22" barreled 270 Win BBR. I have what I consider a slow barrel as with 150 gr bullets my best vel prior to RL-26 was appx 2800 ft/sec. Using a max load of Rl-26 upped this to 2900 ft/sec. Still not earth shattering but none the less a gain of 100 ft/sec. The only problem was the accuracy just wasn't there. Stuck with IMR 4831.

That's a pretty good increase especially given a 22 barrel and what I'd consider a somewhat slower powder? Hornady "Superformance" supposedly works great even in the shorter barrels for velocity*, so they say.

I often read about competitors shooting "hot loads" in their guns but in the back of my mind I have reservations. If it was that easy why not just load up a max load of any combo and work up from there till you hit max accuracy. Some of my most accurate groups have been towards the lower end of my load development. I get excited when I see accuracy tighten again towards the top.

With RL16 I've read from several credible sources that it's a common occurrence to get lower ES numbers the higher the fill ratio so I just keep that in the mental notes in case I ever use the stuff.

I'll be completing a side by side test of 130b-tips with imr4350 and 4831sc here in a couple hours. I got the data for 4350 and will shoot the 4831sc now. I've done them both in the past but not exactly same setup or distance. Up to this point my 2 best groups have been with 140vld and rl22 followed very close by h4831sc and 135matchkings.

 

[RW]

I don't know about the 110's but with 130's and 140's 4350 and 4831 but have had good results with Norma MRP. RW

 

[JSH]

In a hunting load what do you all consider adequate or acceptable. Granted we all strive for smallest groups possible.

My average distance for around here runs from say 50-300 yards. I want and strive for MOA. I will accept no more than twice that for deer sized critters.

In all honesty, I don't do a lot of fooling around with hunting loads. I FL size all brass and use either virgin or once fired. I don't tinker with OAL a lot either. I seldom need a second shot, but I want it to chamber smooth as butter when it does.

 

[Bc'z]

In a hunting load what do you all consider adequate or acceptable. Granted we all strive for smallest groups possible.

My average distance for around here runs from say 50-300 yards. I want and strive for MOA. I will accept no more than twice that for deer sized critters.

In all honesty, I don't do a lot of fooling around with hunting loads. I FL size all brass and use either virgin or once fired. I don't tinker with OAL a lot either. I seldom need a second shot, but I want it to chamber smooth as butter when it does.

Here in southwest Oregon your shots are not going to be that far, occasionally across the draw to the next ridge. But you had better be able to thread the needle. Cuz its THICK n BRUSHY.

 

[270WinDude]

1.5moa or less? That is if I was building a powerhouse hunting gun. Like this one thread some where else I read a long time ago, some dude made a 270-300WM and now pacnor has the reamer. With that I'd be happy with 1.5 as long as first cold shots were somewhat accurate. However with what I'd consider a non-magnum normal hunting gun I'd shoot for .6moa but I'd be more worried about how the gun shoots the first shot then what a warm barrel can do with 4-5 shots.

Turns out h4831sc won this round over imr4350 with 130 b-tips. Granted my shooting could still be at play here more then anything else. However, 58gr of 4831sc and a fed210 primer just got me a 4 shot group of .467 ctc 55.5gr was .594ctc Now to play with primers, brass, seating depth and fine tune.

 

[Albany Mountain]

1.5moa or less? That is if I was building a powerhouse hunting gun. Like this one thread some where else I read a long time ago, some dude made a 270-300WM and now pacnor has the reamer. With that I'd be happy with 1.5 as long as first cold shots were somewhat accurate. However with what I'd consider a non-magnum normal hunting gun I'd shoot for .6moa but I'd be more worried about how the gun shoots the first shot then what a warm barrel can do with 4-5 shots.

Turns out h4831sc won this round over imr4350 with 130 b-tips. Granted my shooting could still be at play here more then anything else. However, 58gr of 4831sc and a fed210 primer just got me a 4 shot group of .467 ctc 55.5gr was .594ctc Now to play with primers, brass, seating depth and fine tune.

How did the 4350 do?

 

[270WinDude]

How did the 4350 do?

So when I did this particular comparison I deviated from norm. I'd normally literally load 4 rounds of min load up to max in small increments like .3 (I know it's not efficient). For this I had an idea of the charges I was gunning for so I can't speak to the real potential of that bullet/powder combo at this point, only the charge ranges that I tested...and for H4350 that was 54gr 54.5gr and 55gr. 54gr was 1.074ctc but almost all horizontal (only .323 vert) which could be my fault, I'm going to retest. 54.5 was 1.12 and 55gr was .961. I'll also be testing charges from 55 on up to either a max fill or at least 96percent roughly and playing around that 54gr charge again.

At one point I shot (group of 4) .285ctc with 50.5gr of H4350 and a berger 140vld ccibr2 primer and fire formed Winchester brass. Most of my shooting has been with rl22 up to recently when 4350 and 4831 made their way high up my list due to so many recommendations.

 

[Bc'z]

So when I did this particular comparison I deviated from norm. I'd normally literally load 4 rounds of min load up to max in small increments like .3 (I know it's not efficient). For this I had an idea of the charges I was gunning for so I can't speak to the real potential of that bullet/powder combo at this point, only the charge ranges that I tested...and for H4350 that was 54gr 54.5gr and 55gr. 54gr was 1.074ctc but almost all horizontal (only .323 vert) which could be my fault, I'm going to retest. 54.5 was 1.12 and 55gr was .961. I'll also be testing charges from 55 on up to either a max fill or at least 96percent roughly and playing around that 54gr charge again.

At one point I shot (group of 4) .285ctc with 50.5gr of H4350 and a berger 140vld ccibr2 primer and fire formed Winchester brass. Most of my shooting has been with rl22 up to recently when 4350 and 4831 made their way high up my list due to so many recommendations.

3 months ago you couldn't find H4350, now I'm starting to see it more places. Actually using it a little my self.

 

[270WinDude]

3 months ago you couldn't find H4350, now I'm starting to see it more places. Actually using it a little my self.

I think I got mine at cabelas about 6 months ago or roughly a few months before I created a profile here. So many people have recommended it to me. I had low expectations considering how long it's been around but so far I'm happy with it. I'm apparently a very slow learner so still a year or two away from having a solid opinion on it. That is a pet peeve how hard it is to get certain powders/bullets now and then. Luckily I travel from here to eastern Oregon now and then so can hit up lgss on the way. The ace hardware in la grande actually has some good choices, that's where I picked up my 140classic hunters which I never though I'd see for sale in a walk in retail store. I think before next summer I'll be buying in bulk the small containers go too fast.

I'm not sure exact reasoning although I highly suspect during the first Obama panic my step dad was the guy panic buying 30-06 and 308 stuff, not too much slower stuff but I have access to enough 4064 to last till the apocalypse. ...and to a lesser extent h414.

 

[JSH]

"With that I'd be happy with 1.5 as long as first cold shots were somewhat accurate"

I was wondering if anyone but me looked at it like that. I quit shooting large strings. Maybe three at the most. My bottom line, that first shot is what I look at the most. Cold bore that is left fouled through the hunting season on both of my go to rigs.

I have an early build rifle I bought used from I would guess in the early to mid sixties, 300WM. Same target shot at 100, one shot each time,cold, clean bore. Eight shots into an inch.
Here is the kicker. The second shots will make the group 3"@100, consistently. I am going to rebed it and hope for the best.