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Post by ctrmass on Sept 11, 2012 5:36:45 GMT -8
Barrel: 20" 1/9 3 gr poly BHW
case: Hornady
powder: WC846 surplus
weight: 29-29.1 gr
primer: CCI
Bullet: 120 gr sierra BTHP
velocity: 2452 fps
ES: 43
SD: 12
Great accuracy out of my rifle. I believe there's a little room of more velocity, but I dont want to beat up my gun and besides, I dont get much range time, I'd rather shoot than experiment.
FWIW the same load chronographed 2412 FPS out of a 18" BHW barrel.
Everything is identical except the 2" on the end of the barrel.
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Post by GLSHOOTER on Sept 11, 2012 8:50:22 GMT -8
264 LBC?  Greg |
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Post by ctrmass on Sept 11, 2012 9:21:37 GMT -8
Yes. I posted it in the 264 section, but it has been moved. ;D
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Post by GLSHOOTER on Sept 11, 2012 10:11:33 GMT -8
Yes. I posted it in the 264 section, but it has been moved. ;D I hate it when things move!! I usually have to shut down my drinking at that point!!  Greg |
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Post by oz on Sept 11, 2012 21:13:12 GMT -8
Thanks for posting this! I hadn't considered using the 846 in a 264 round.
Just curious, do you remember how full the case is with 29 grains?
Oz
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Post by GLSHOOTER on Sept 12, 2012 8:35:42 GMT -8
Remember not all surplus WC846 is created equal.
Greg
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Post by Tooreal on Sept 12, 2012 20:18:50 GMT -8
I am SO Happy to have found this load Data, and thank you OZ. I have 2 New 8 Pound containers full of the WC846, and it's suppose to be the same thing as BLC-2 but I've been waiting until I used all of the BLC-2 up before I Pop the lid on a New can of the WC846. I've been told by several different people that when loading with the surplus powder you may have to add 10% more to get the same charge as the BLC-2, but I'll find that out when I start using it to load all of my .264 LBC-AR rounds.. I love that rifle, man that thing is So Accurate it really does amaze me  . After I get over the need to shoot my 300 Blackout so much, and have 700 rounds of subsonic rounds loaded, and about 500 supersonic rounds loaded, I'll get back to my Black Hole Weaponry Tack Driving .264 LBC-AR ~Grendel Gun ;D ;D ;D  Greg, Loading with this powder does take up a lot of the case, so I think it would be impossible to get double load of power in 1 case and not know it, because you wouldn't be able to seat the bullet... There was something really odd or interesting that occurred when I first started loading for the 264 LBC. I was loading several different bullet types, weights and Brands. I had loaded 120 Grain Hornady A-Max Bullets and the same weight 120 Grain Nosler Ballistic Tip bullets with the same CCI small Magnum Primers and the same amount and Brand type of BLC-2 Powder. Each had the same weight Bullet loaded with the same amount of Powder in New Brass, each bullet shot Great and groups were each equally matched, except 1 thing! One of the loads shot about 8 to 10 Inches Lower than the other one did, and I was shooting at 35 yards! I will have to locate my load data because I can't remember which one it was now?? Can either of you explain to me what exactly was going on? The only thing that I can think of is maybe I had some bad loading information? And maybe I wasn't suppose to use as much powder with the Ballistic Tips as I was with the A-Max Bullets?? I don't know? Any ideas? Thanks Eric |
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Post by Swamp Fox on Sept 13, 2012 2:51:46 GMT -8
tooreal
8-10 inch POI shift at 35 yards is EXTREME. Red flags should be waving! All loading manuals that I have ever read, say to start back at minimum starting load, if you change any component. One would think that a Ballistic Tip and an A-Max of the same weight (120 gr) would be nearly the same, BUT something is going on.
You should be able to hear and / or feel a difference in the rifle for a 8-10 inch POI shift at 35 yards. That kind of shift usually suggests a bad scope, but you said that you had good groups at both POI's.
I can't explain what happened, but for SAFETY be very CAREFUL !!!
I am sure Greg will chime in once he comes back on-line, and give us his 2 cents worth. (His 2-cents usually make a lot of sense).
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Post by GLSHOOTER on Sept 13, 2012 15:09:59 GMT -8
Wow. That is a bit more variation than I could even comprehend in my imagination!! Up front I don't have those two bullets to compare as I don't have a 264, yet, but possibly one is way the lands and the other is not. With the 264 you can do this according to what I have been told. I would want a chronograph on that stuff to see what is going on. The things should not be varying by more than an inch or so IMHO. Now as an experiment take five of each and load them alternately in the magazine and shoot the target at 35 yards. See if the variation repeats. I would guess you aren't running a MAX charge, right? Greg |
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Post by ctrmass on Sept 15, 2012 5:56:26 GMT -8
Thanks for posting this! I hadn't considered using the 846 in a 264 round. Just curious, do you remember how full the case is with 29 grains? Oz I load in a Dillon 550. I dont remember the volume, you can see it if you try hard enough. I wouldnt worry if you're concerned about compressed charges. It isnt that full. I've been throwing the charges with an old Lyman #55 with the Harnell's (sp?) conversion. Edit: It's a Culver conversion. I had a metric butt ton of the 846 too. ;D BTW what's the max OAL on a resized case? I cant seem to find my info..... TIA Eric |
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Post by GLSHOOTER on Sept 15, 2012 6:54:38 GMT -8
Alexander Arms data states:
Max case Length 1.526"
Min case Length. 1.520"
Hornady book states case length as:
Max Case Length 1.516"
Trim Case Length 1.506"
I go short.
Greg
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Post by flutedbull204 on Sept 15, 2012 6:55:27 GMT -8
Maximum Case Length 1.526 inches
Minimum Case Length 1.520 inches
This is from the AA web
COAL is 2.260
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Post by ctrmass on Sept 15, 2012 8:45:52 GMT -8
Thanks! ;D
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Post by ctrmass on Sept 19, 2012 13:45:58 GMT -8
Thanks for posting this! I hadn't considered using the 846 in a 264 round. Just curious, do you remember how full the case is with 29 grains? Oz Just loaded some more. The volume was to about the bottom of the shoulder.~ish. ;D |
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