Looking to see if anyone has a pet load for this combination?
I'm thinking of 26.2gr of 748 with an OAL of 2.240"
This is going to be mostly used with my 16" AR.
Looking for a Recipe for .55gr FMJBT and Winchester 748
Started by
lpspinner
, Jun 28 2012 10:48 AM
7 replies to this topic
#1
lpspinner
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Posted 28 June 2012 - 10:48 AM
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#2
outerlimits
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Posted 28 June 2012 - 04:02 PM
Looking to see if anyone has a pet load for this combination?
I'm thinking of 26.2gr of 748 with an OAL of 2.240"
This is going to be mostly used with my 16" AR.
that might be a tad on the hot side. i've loaded 748 for 55 gr fmj's at 24.8 grins that got me 2,905 out of an 18" JP barrel. YMMV.
"We're Marines, We took Iwo Jima. Baghdad ain't shit." - Gen. Kelly, USMC
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"We have two companies of Marines running rampant all over the northern half of this island, and three Army regiments pinned down in the southwestern corner, doing nothing. What the hell is going on? " - Gen. John W. Vessey Jr., USA, Chairman of the the Joint Chiefs of Staff; during the assault on Grenada, 1983
"A golf course is the willful and deliberate misuse of a perfectly good rifle range." - Jeff Cooper
"Character is doing what's right when nobody's looking." - J.C. Watts
#3
lpspinner
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Posted 30 June 2012 - 03:39 PM
OK, the lastest Nosler bok has this at .2 over max. hmmm,
Since the 16' is a tad bit shorter then your 18", I'll try 25gr, with an OAL of 2.255 a try. Pretty much crimped at the top half of the cannelure.
Now to find time to go to the range to test this.
Since the 16' is a tad bit shorter then your 18", I'll try 25gr, with an OAL of 2.255 a try. Pretty much crimped at the top half of the cannelure.
Now to find time to go to the range to test this.
Edited by lpspinner, 30 June 2012 - 03:40 PM.
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#4
SteveT-NV
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Posted 30 June 2012 - 05:19 PM
Looking to see if anyone has a pet load for this combination?
I'm thinking of 26.2gr of 748 with an OAL of 2.240"
This is going to be mostly used with my 16" AR.
It's been a while since I've loaded FMJ but this was my recipe:
Hornady 55 g FMJ
OAL 2.23
25.8 g W748
18 in JP
Avg Chrony - 2823 at 55 degrees in January.
I no longer use W748 because of it's bad rep for temperature sensitivity and it seemed "dirty". I've been happier with Ramshot X-Terminator. YMMV
Steve
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Monthly 3-Gun Matches in Reno, NV
Monthly 3-Gun Matches in Reno, NV
#5
lpspinner
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Posted 01 July 2012 - 12:52 AM
Thanks Steve...Yea, I'm aware of the temperature sensitivity, but this will be used in the mild San Francisco Bay Area climate, so that shouldn't be an issue.
hmmm, 2.23.....I think that will take me over past the cannelure?
hmmm, 2.23.....I think that will take me over past the cannelure?
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#6
SteveT-NV
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Posted 01 July 2012 - 07:07 AM
It's possible I made a mistake when I wrote that down, my notes are from about 6 months ago. I do remember trying to get them as long as I could while keeping the crimp in the cannelure. FWIW, I just measured some American Eagle 55 FMJ factory rounds and they are at ~ 2.20. I've grown fond of the VMax bullets, so I don't load the FMJ's any more.Thanks Steve...Yea, I'm aware of the temperature sensitivity, but this will be used in the mild San Francisco Bay Area climate, so that shouldn't be an issue.
hmmm, 2.23.....I think that will take me over past the cannelure?
Let us know your results, or even better yet since you only live a few hours away from Reno come up and join us at our monthly 3-Gun matches! Next match is July 7th - Calendar at www.wnpl.org
Steve
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Monthly 3-Gun Matches in Reno, NV
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#7
lpspinner
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Posted 03 July 2012 - 10:11 AM
Oh great, another reason to go to Reno. 
Wife's gonna love that.
Not ready for 3 gun matches yet, but may participate in a USPA match if I'm there.
Since I'm loading LC brass, I'll back off your load down to 25.6 and give those I try. I loaded up a few test round and I'll see how it goes. Crimp is right at the top edge of the cannelure.
Thanks
Wife's gonna love that.Not ready for 3 gun matches yet, but may participate in a USPA match if I'm there.
Since I'm loading LC brass, I'll back off your load down to 25.6 and give those I try. I loaded up a few test round and I'll see how it goes. Crimp is right at the top edge of the cannelure.
Thanks
Edited by lpspinner, 03 July 2012 - 10:12 AM.
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#8
md66948
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Posted 29 July 2012 - 07:15 AM
I have 6lbs of 748 so I am going to use it for some Hornady 55 grain FMJ bullets. My my barrel length is 11.5 inches. How well do you think 25.6 grains of 748 powder will work in my barrel?
My rifle is a New Colt 6933 Carbine. I will also be mounting the 6933 upper onto my Colt M16.
Dane
My rifle is a New Colt 6933 Carbine. I will also be mounting the 6933 upper onto my Colt M16.
Dane
Edited by md66948, 29 July 2012 - 07:17 AM.
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