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Anyone using winchester 748? 223 + 308?

This is a discussion on Anyone using winchester 748? 223 + 308? within the Ammunition forums, part of the M14 M1A Forum category; Been using W748 for both .223 and .308 rounds. I have only been reloading for a year now but I did about 3 months of ...


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Old January 5th, 2017, 07:39 AM   #16
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Been using W748 for both .223 and .308 rounds. I have only been reloading for a year now but I did about 3 months of research on this powder before I decided on going with it. I only do 4 calibers, .223, .308, 9mm and 45 ACP so I wanted as few powders as possible for all my reloading.

I only use CCI 41 and CCI 34 for primers as well. Luckily LGS usually has them in stock so I have stocked up pretty good on them.

I am using 23 grains + or - .2 grains for 55 grain .223 bullets and 43.5 + or - .2 grains for the 147 grain .308 bullets.

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Old January 5th, 2017, 04:50 PM   #17
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I know a guy who used 748 in his 14 almost exclusively.
He is also a pistol shooter. One day his first sighting shots standing went kaboom, literally rained 14 parts on him. Hey... ball powder is powder, 748, 296... all the same... right. He mistakenly grab the 296 and poured it into the powder hopper... as the great Mr Paul Harvey would say, "And the rest is history:

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Old January 6th, 2017, 02:55 PM   #18
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Some data. Winchester 748 is sold by Hodgdon Powder. 43 grains looks light for a 150 grain bullet. It is faster than Varget.

http://www.hodgdonreloading.com/data/rifle

Good luck

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Old January 6th, 2017, 03:17 PM   #19
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Quote:
Originally Posted by Bamban View Post
I know a guy who used 748 in his 14 almost exclusively.
He is also a pistol shooter. One day his first sighting shots standing went kaboom, literally rained 14 parts on him. Hey... ball powder is powder, 748, 296... all the same... right. He mistakenly grab the 296 and poured it into the powder hopper... as the great Mr Paul Harvey would say, "And the rest is history:
I keep my powder separate from my reloading set up and only bring in the powder for the current loading.

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Old January 6th, 2017, 08:47 PM   #20
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more old WW748 loads
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Old January 7th, 2017, 06:04 AM   #21
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I have used it in a number of loadings for M1A, Garand, AR & currently a hot bolt-action load. We used to see a lot of reloading data offered for it, but then I noticed this changed and it fell out of favor it seemed for .308 M1A/Garand using 168 grainers, think it had to do with lot changes and it moved up the burn chart, or it was when measuring pressures got more accurate.

I still think it's a great powder and will continue to use it...

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Old January 7th, 2017, 08:11 AM   #22
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Quote:
Originally Posted by Bamban View Post
I know a guy who used 748 in his 14 almost exclusively.
He is also a pistol shooter. One day his first sighting shots standing went kaboom, literally rained 14 parts on him. Hey... ball powder is powder, 748, 296... all the same... right. He mistakenly grab the 296 and poured it into the powder hopper... as the great Mr Paul Harvey would say, "And the rest is history:


~45grn W296... ??? Just... wow. Raining M14 parts is probably an understatement.

I'm pretty careful when I load, particularly when switching between rifle and pistol cartridge loads. I have a spot where the 'powder in use' goes, and I never leave powder in the hopper. Because the last 10 years has found me loading more and more rifle cartridges, I've doubled my 'double-check' efforts as far as load verification and components.

As far as W748... never used it. I'm pretty much an IMR rifle powder guy, with the notable exception of H335 in the 5.56mm. I'm mindful of a powder's temperature sensitivity... I often shoot in Nevada where temps easily go over 110F in the summer, I've noted some interesting velocity increases in some cases.

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Old January 11th, 2017, 08:55 PM   #23
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For nearly 10 years I shot a bolt Remington 700 Varminter in center fire rifle silhouette. 43 g of 748 with the Sierra 168 HPBT which gave a half minute group off the bench.

I am still in the process of getting my mind moved from a turned neck, neck sized only, count the granules of powder into a case that I was still using after 8 reloads mentality to a full length SB sizing, trim the cases to uniformity, seat the primer in a very clean pocket, check the headspace again, discard the case after 3-4 reloadings, and don't use too slow a powder mentality!

Never would have thought, but, at least at this point, service rifle shooting seems more technical than real benchrest competition (of which I had very limited experience).

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Old May 7th, 2017, 12:24 AM   #24
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In January of this year I had to travel back east for a few weeks. During the weeks up to that time I had spend loading different 748 powder charges behind both the 168 gr and 175 gr match bullets, in once fired Lake City brass, for my yet unfired M1A. As I hadn't had time to get to the range to test my loads for accuracy, I packed everything up and took it with me.

A week or so after arriving I finally got to the range there and discovered they'd dozed a new 240 yard backstop with target boards and steel tombstone style gongs at 100, 200, and 240 yards! Perfect!

To shorten up the narrative here (too late?) I had some excellent success with the loadings. I first put about 75 rounds of Federal, 147 gr bullet, LC White Box commercial ammo through the gun, just to limber it up and get an approximate, on the paper zero, with the scope.

Then firing 10 to 15 rounds of each load, I put another hundred rounds through the gun. The largest group was 6" and the smallest was 3/4" at 100 yards. I would shoot one loading then move to the next recording all the results in a notebook. When I discovered the load that shot 1" or smaller, I'd set the remainder of that loading aside.

After testing another load, I'd return to the accurate set-aside load and fire another 3 shot group. My logic was that since the rifle was so new that my first findings of an accurate load needed to be verified as the bore fouled.

My findings, all with 748 powder at .5 gr increments, showed my most accurate load with the 168 gr HPBT Match bullet was 1" or smaller with both 42.5 gr and 43 gr of powder.

The 175 gr HPBT Match bullet was 3/4" or smaller group with 42 gr powder. These group sizes were verified with 3 more three shot groups of the two bullet weights. Best was one group of the 175 gr bullet producing a three shot cloverleaf measuring 3/8" Actually covered the group with a 3/8" stick-on target dot.

The accuracy persisted all the way out to the 240 yard target continuing to produce 1 minute groups. The only alteration to the rifle, besides the scope, was that I spent about 5 minutes lapping the bolt lugs a few weeks earlier. Also, as the number of rounds through the gun climbed accuracy got better (could be that my confidence and comfort got better with the rifle).

Oh, one last tidbit, I had several brands of new unused 10 rd mags. 3ea Springfield, 10ea Checkmate, and 3ea KCI(bought because they were half the price of the Checkmate mags). I alternated throughout the test between the mags. Not one second of problem with the Springfield or the Checkmate magazines. The KCI mags jammed the gun with double feeds three times during the test.

Thanks from JEFFJP_N_JJ and FWP

Last edited by BruceAFrank; May 7th, 2017 at 12:58 AM. Reason: additional info
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Old May 8th, 2017, 09:47 PM   #25
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My rifle always seemed to like WW748
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File Type: jpg 005.JPG (1.85 MB, 5 views)
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Old May 9th, 2017, 12:01 AM   #26
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Quote:
Originally Posted by Quis ut Deus View Post
Yes, my go to powder (748) for mass reloading of .308 Win
I use Fed 210M (match) or any available magnum primers, mostly CCI-250
I have tried all kinds of powders, but 748 meters smooth perfect and
accuracy always stable and outstanding out of M1A and bolt guns
my .223 powder is H-335 for mil-spec M193 (magnum primers too! CCI-450)
748 also used in .30/30 reloads = finest accuracy (magnum primers)
I have been hooked on 748 since the early 1990's
many 1,000's of rounds satisfied and no negatives
best results = hot primers
Can you load up 147g at 2800 FPS with this powder and not have pressure problems in the M14?

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Old May 21st, 2017, 06:00 PM   #27
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See the American Rifleman article by C.E. Harris, A Service Rifle Powder Alternative, March 1984, pages 34, 35 and 78. It lists at least 7 loads using W-W 748 in Lake City military match brass with Winchester large rifle primers. Bullet weights for the loads listed range from 150 gr. through 190 gr. If have used one of the loads, 43.0 gr of 748 with 168 gr BTHP. Nice load for 200yds.

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