| Posted: Sun Sep 28th, 2008 12:09 PM |
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Cohiba
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Searching thru the Army ammo specsheets I saw that the match 308 round was using a 168 SMK and IMR4895. I have a good supply of H4895 and decided to play w/ thier charge and see how i could do.
heres the target w/ the hornady soft points, my hunting load.
I shot some matchkings over the same charge and while i didnt shoot for group i did dust off some anoles at 215-218 yards.
While this isnt the tightest group it is from a 20" lightwieght barrel.
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| Posted: Sun Sep 28th, 2008 01:09 PM |
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Timberghozt
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That is pretty derned good in my book
I use Varget in mine and my oldest sons 308..Mine is a 20 inch bull barrel like yoursz,my son`s a 24 inch Hart stainless fluted bull barrel..Both yield excellent accuracy with Varget..
Good shooting COHIBA,btw,welcome to the board
TG
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| Posted: Sun Sep 28th, 2008 02:49 PM |
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JCinPA
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At another forum I frequent, we had a thread on duplicating the Federal GMM load. Someone found out from a Federal salesman that they use IMR-4064 in their loads.
We were getting scary accuracy using the 168 gr. Sierra MK BTHP's over 43.0-43.5 grains of 4064 with various cases and primers.
I shot a 0.40" group at 100 yards using Winchester cases, CCI regular primers (not the BR stuff) and 43.5 grains of IMR-4064.
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| Posted: Mon Sep 29th, 2008 02:30 AM |
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Cohiba
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that group was with the hornady soft point.
i'll head out tuesday and shoot some of the 168 SMK's in FC brass w/ BR-2 primers...
Ill be PO if they dont shoot better.
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| Posted: Fri Oct 3rd, 2008 03:21 PM |
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Trigger_Puller
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Good shooting!
I just finished running a tests with IMR4895 and 168 gr SMK through my Remington 700P. Here were my results.
Caliber: .308 Win
Bullet: 168 gr SMK
Case: Federal Match
Primer: Federal GM210
Powder: IMR4895
Charge: 41.5 gr
COAL: 2.906"
Avg Velocity: 2,606
SD: 9.53
ES: 25.70
Caliber: .308 Win
Bullet: 168 gr SMK
Case: Federal Match
Primer: Federal GM210
Powder: IMR4895
Charge: 42 gr
COAL: 2.906"
Avg Velocity: 2,648
SD: 13.03
ES: 34.78
Caliber: .308 Win
Bullet: 168 gr SMK
Case: Federal Match
Primer: Federal GM210
Powder: IMR4895
Charge: 42.5 gr
COAL: 2.906"
Avg Velocity: 2,685
SD: 12.12
ES: 30.34
Of the three loads, the one using 42.5 gr was the most accurate with a group size of 0.05" at 100 yards on a sunny day with temperature of about 84 degrees, wind out of the NE @ 5-10 mph.
I haven't tried any loads using IMR4064. Normally I use 41.9 gr of Varget and have managed extremely tight groups using the same COAL (0.020" off of lands) as above with a velocity of 2,624 fps, SD of 5.74 fps and ES 15.91 fps.
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| Posted: Sat Oct 4th, 2008 08:20 AM |
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Cohiba
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with the 41.5 gr load i get 2550 from a 20" carbine barrel. its a steyr barrel but still pretty fast to only lose that little compared to a 26" remington.
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| Posted: Sun Oct 5th, 2008 02:11 AM |
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Trigger_Puller
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Is that 2,550 fps using IMR4895 or H4895? I ask because H4895 is a slower burning powder than IMR4895.
Last edited on Sun Oct 5th, 2008 02:19 AM by Trigger_Puller
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| Posted: Mon Oct 6th, 2008 10:52 AM |
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Cohiba
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H4895.
thats why I reduced it a half grain from the spec sheet.
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| Posted: Thu Nov 13th, 2008 08:36 PM |
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Mr Swift
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JCinPA wrote: At another forum I frequent, we had a thread on duplicating the Federal GMM load. Someone found out from a Federal salesman that they use IMR-4064 in their loads.
We were getting scary accuracy using the 168 gr. Sierra MK BTHP's over 43.0-43.5 grains of 4064 with various cases and primers.
I shot a 0.40" group at 100 yards using Winchester cases, CCI regular primers (not the BR stuff) and 43.5 grains of IMR-4064.
That is the exact specs of my favorite .308 load. Verry accurite.
I do use the bench rest primers sometimes hard to tell if they improve groups.
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| Posted: Sun Nov 30th, 2008 09:01 PM |
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TasunkaWitko
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outstanding results, cohiba -
while we're on the subject of duplicating factory loads, i'd like to see someone do it with the "plain jaine" federal blue box in 150-grain .308 psp, including the bullet used.
for some reaosn, my rifle really likes this factory load and while i have no clue what bullet they use (perhaps speer's psp?) it performs flawlessly on game. considering great success like that, i'd like to duplicate it.
Last edited on Sun Nov 30th, 2008 09:01 PM by TasunkaWitko
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8x57mm
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.308 Win 175gr SMK - 42.5 gr Reloader 15 - Win/Win super accurate at 600 yds 2635 fps Savage 12FV w/ 26" heavy Barrel
.308 Win 168gr HPBT/ Hornady- 42 gr - IMR4064 - Win/Win super accurate as well, but a bit less recoil for off-hand shooting 2592 fps Savage 12FV w/ 26" heavy Barrel
http://home.comcast.net/~v2creative
JR
Last edited on Mon Apr 6th, 2009 12:22 AM by 8x57mm
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| Posted: Fri May 22nd, 2009 05:17 AM |
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Tackleberry
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A load I worked up for my M1a that has performed well:
168 grn BTHP, Sierra Matchking
IMR4895, 42.4 grns
Federal Match brass
Winchester primer
Very close to one of Trigger_Puller's.
Last edited on Fri May 22nd, 2009 05:18 AM by Tackleberry
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