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Author Topic: BLC-2 in the 270 Winchester-what's the scoop?  (Read 1134 times)

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Offline bluebayou

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BLC-2 in the 270 Winchester-what's the scoop?
« on: December 05, 2005, 02:54:51 PM »
Hodgdon lists BLC-2 for the 7-08, 308, 280, and the 30/06.  But they don't list it for the 270 or the 25/06.  What gives?  Not that I would substitute any recipes or anything, just curious.  I would have thought that all of the 06 family would be good to go......I was thinking that it is a bullet weight issue, but they show a Barnes X load at 120 gr for the 280.

Any ideas?
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Offline Siskiyou

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BLC-2 in the 270 Winchester-what's the scoo
« Reply #1 on: December 05, 2005, 03:47:00 PM »
My old Hodgdon manual #25 list BLC-2 loads for the 90, 100, and 110 grain bullets.  It must consider BLC-2 to fast of a burning powder to be effective in the .270 case with heavier bullets. The 270 does better with slower burning powders.

A quick look at similar cases such as the 25-06, 25-284, and 25-06 show no loads using BLC-2 im manual #25.
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Offline R.W.Dale

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BLC-2 in the 270 Winchester-what's the scoo
« Reply #2 on: December 05, 2005, 03:56:52 PM »
It all has to do with the bore case ratio, Generaly when you start pushing more case capicity through a smaller bore you will have to go with a slower powder to keep pressures in check.
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Offline bluebayou

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BLC-2 in the 270 Winchester-what's the scoo
« Reply #3 on: December 05, 2005, 04:38:01 PM »
That case capacity/bore diameter theory is about what I settled on.  The 280 is very similiar in size though.  

So, Siskiyou, what powder would you use?  I am looking at IMR4350 as my starting powder.  Looks pretty good across the board for the 270.  I have the Hodgdon's on hand (Varget, BLC-2, H4895) but IMR4350 looked to cover a big range
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Offline victorcharlie

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BLC-2 in the 270 Winchester-what's the scoo
« Reply #4 on: December 06, 2005, 01:33:11 AM »
IMR 4350 is a very popular powder for your application.  IMR4831 is also very popular and might be a better choice for the heavier bullets.......
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Offline Siskiyou

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BLC-2 in the 270 Winchester-what's the scoo
« Reply #5 on: December 06, 2005, 06:28:59 AM »
bluebayou:  I  must admit my long time love affair with H4831.  It has been the center piece of my reloading for the .270 Win. since the late 60's.  I had started with a faster burning powder back in high school and was suffering short case life.  My brother gave me some surplus 4831 and I liked the results.  In those days I did not have a Crony, but its bulk filled the case and contributed to accuracy.  Of course I consulted all the printed data and I liked the numbers.  And there was a popular gun writer of the day who published an article or two regarding his use of 4831.  

Now days Hodgdon calls it an Extreme tempature powder.  But even in the days of surplus 4831 I had no problems when shooting it in -10 degree tempatures in Colorado, or 100 degree tempatures in California.

IMR4350 is an excellent powder.  A couple of old, experienced hunting buddies have been loading it for years in the .270 Win.  And they have the trophys as a result.   I have a little IMR4350 on hand. I played with it some years back.  But I fell back to H4831.

I have played with a few other powders in the .270 Win.  Discontinued WW785 and Winchester Magnum Rifle powders are two of those.  I was unhappy when WW785 was dropped.  The point being is that I like a slightly slower burning rate for the .270.

4831 was re-named H4831 after IMR4831 came out.  From what I have read it is a good powder.  It has a faster burning rate then H4831 and data is not inter-changeable.  I have not tried it on my bench as a matter of safety.  No mix-ups.  IMR4831 is very close to IMR4350 and I suspect it was put on the market because of the popularity of H4831.  It has caused a lot of confusion over the years.

H4831 is an excellent powder for a wide range of over bore-capacity cases such as the .243 Win., 25-06, .270 Win, and 7MM Rem Mag.  My brother who has burn many pounds of IMR4350 is looking at H4831 for his new 6.5-284. At one time I had a 30-06 and loaded 165 grain bullets pushed by H4831. I was happy with the results and still load it for the current owner.
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There is a learning process to effectively using a gps.  Do not throw your compass and map away!

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Offline victorcharlie

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BLC-2 in the 270 Winchester-what's the scoo
« Reply #6 on: December 06, 2005, 09:05:42 AM »
It has been my experience that with most rounds, the best accuracy occurs when the case is full, or close to full.  I haven't tried the H4381 as IMR4381 works good in my .243 as well.  Plus, Dupont has a race car on the track....  I would suspect that H4381 would fill the case a little better than IMR4381 and would think that H4381 would be most excellent!    
 
With all the powders available, and the fact a fellow has to buy a pound at a time, and having had powders that just didn't work for me for different reasons, a dual purpose powder is a plus for me.......  
 
I haven't' started reloading for the 45.70 and .35 Remington, but hope to find one powder that works well for both.......I've posted about this in the past and have gotten several suggestions......  
 
I really wish that IMR Dupont, Hogdens, Winchester, and the others would market a "sampler" pack with a couple of ounces of there best........maybe an 8 pack of the best sellers......sure would make load development cheaper!  I know I've loaded up 30 or forty rounds with one type powder and knew within 10 minutes it didn't suit me.......then I'm stuck with $18 to $20 dollars worth of powder I won't ever use again.........
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"Extremism in the defense of liberty is no vice. Tolerance in the face of tyranny is no virtue."
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Offline Lone Star

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BLC-2 in the 270 Winchester-what's the scoo
« Reply #7 on: December 06, 2005, 09:48:40 AM »
Quote
Plus, Dupont has a race car on the track.... IMR Dupont.........
Hate to burst your bubble VC, but DuPont hasn't owned IMR since they spun the Canadian company off as an independent a number of years ago.   IMR has been owned by Hodgdon since 2003, finally making Hodgdon - for the first time - an actual manufacturer of smokeless powder.
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Offline Arrroman

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BLC-2 in the 270 Winchester-what's the scoo
« Reply #8 on: December 06, 2005, 10:46:39 AM »
The old style cans that the IMR powder came in have been discontinued.

All the IMR powders now com in the Hogdon plastic jugs.

The labels still keep the same colors that the IMR powder cans used.

Good luck hunting!  >>>------------>
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Offline victorcharlie

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BLC-2 in the 270 Winchester-what's the scoo
« Reply #9 on: December 06, 2005, 01:21:45 PM »
Dang it Lone Star......You didn't have to go and burst my bubble like that.......My ignorance was bliss..........Didn't like Gordon anyway......more of a Sterling Marlin fan......
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"Extremism in the defense of liberty is no vice. Tolerance in the face of tyranny is no virtue."
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Offline bluebayou

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BLC-2 in the 270 Winchester-what's the scoo
« Reply #10 on: December 06, 2005, 02:25:21 PM »
Thanks for the info.  It looks like 4831 from one of the branches of Hodgdon will be it.  I too like the idea of a full case.  Some distant relatives reload 270's and their cases are half full of 4064, or they sound that way.  They get inconsistent groups.  Anyway, I had H4350 or IMR4350 stuck in my head.  I like 4831 on paper.  Will try it out.
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Offline oliverstacy

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I tried AA 3100
« Reply #11 on: December 07, 2005, 03:43:00 AM »
I recently tried AA-3100 with 140 gr Accubonds and achieved great results.  5 shots at 100 yards usually land within .75-1.25".  My best was a .441 three shot group.  The more I concentrate the better I show off the talent of the firearm...I'm just along for the ride.

55.5 gr of AA 3100 in a Winchester case and BR-2 primer.

Josh
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Offline Siskiyou

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BLC-2 in the 270 Winchester-what's the scoo
« Reply #12 on: December 08, 2005, 08:43:09 AM »
bluebayou:  IMR4064 was the faster burning powder that I was referring to.  The issues were pressure related at the top end of the loads.  I believe that IMR4064 has a place on the .270 Winchester loading page.  Accuracy was not a problem as long as I kept the jacket fouling down in barrel.  I am talking about hunting accuracy not bench rest accuracy.

A friend of mine uses a 110 grain Serria bullet to shoot deer.  I suggest that one looking for a "reduced recoil" load for the .270 Win. try 44 grains of IMR4064 and the 110 grain Serria Pro Hunter which is designed to penetrate and expand on deer size game.  This load will produce approximatley 12 pounds recoil in a 7.5 pound rifle.  You want a little more powder bulk for the same 2800 fps. try 54 grains of H4831.  This load produces approximately 14 pounds of recoil.  I started my son out at 12 years with the H4831/110 grain Serria load.

When you want to reach the higher velocities that made the .270 then you need more slower burning powder.  

Bullet Wt.>Velocity>Powder Wt.>Firearm Wt.=recoil

P.S.  I have a couple of early empty cans labeled Hodgdon 4831 do they have any value?  Pre-H4831 and IMR4831.
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There is a learning process to effectively using a gps.  Do not throw your compass and map away!

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Offline bluebayou

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BLC-2 in the 270 Winchester-what's the scoo
« Reply #13 on: December 08, 2005, 05:40:18 PM »
I have had great luck with the Sierra Gameking in the 7-08 (160gr surprisingly enough).  That Pro Hunter 110 sounds like it would be a good choice.  I am mainly looking to punch paper anyway.  At $12.89 before discount at Midway they are looking pretty darn good.  Thanks for the followup.

I made some 7-08 loads with the Hornady 120 SP with 41gr of 4895 and 35.5gr of 4895.  They are like shooting the 223.  Light recoil is a good thing.
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