308 loads for Hoosier deer

The #1 community for Gun Owners in Indiana

Member Benefits:

  • Fewer Ads!
  • Discuss all aspects of firearm ownership
  • Discuss anti-gun legislation
  • Buy, sell, and trade in the classified section
  • Chat with Local gun shops, ranges, trainers & other businesses
  • Discover free outdoor shooting areas
  • View up to date on firearm-related events
  • Share photos & video with other members
  • ...and so much more!
  • Broom_jm

    Master
    Rating - 0%
    0   0   0
    Dec 10, 2009
    3,691
    48
    I just ordered 100 Hornady 165gr Spire Point Boat Tail bullets to load in my 308 for deer hunting this fall. This gun shoots the 155gr A-Max bullets very well, so hopefully the 165gr SPBT's group somewhere around an inch.

    Anybody else loading up 30 caliber or 243/6mm loads for deer hunting in Indiana this fall?
     

    djones

    Sharpshooter
    Rating - 100%
    26   0   0
    Jan 4, 2011
    515
    18
    Greenfield
    40 grains of IMR3031 in LC brass under a Speer flat base 165 hot core 2.800" OAL. I look forward to using my 308 for opening weekend then I will probably break the 35 Rem or 45 colt Marlins out for the remainder of season.

    David
     

    Leadeye

    Grandmaster
    Rating - 100%
    4   0   0
    Jan 19, 2009
    36,972
    113
    .
    I'm taking the old Winchester's out to hunt this year, 1894s and 1895s in 30-30, 30-40, and 32-40. I think they all deserve to go hunting after what has probably been decades of absence.
     

    djones

    Sharpshooter
    Rating - 100%
    26   0   0
    Jan 4, 2011
    515
    18
    Greenfield
    My dad has some 30-40s. The actions are super smooth. Always admired the 30-40s just never could do much with them here. Looks like a new day for the 30 cal here in Indiana
     

    Broom_jm

    Master
    Rating - 0%
    0   0   0
    Dec 10, 2009
    3,691
    48
    My guess is we should enjoy the 6mm rounds and 30-caliber rounds as much as we can for the next few years...cuz after that, it will probably be wide open to just about any rifle cartridge.
     

    HuntMeister

    Sharpshooter
    Rating - 100%
    8   0   0
    Dec 21, 2010
    355
    18
    I have some 150 grain Hornady Interbonds over IMR4350 that my 06 really likes and I also have some 80 grain GMX's setup up for my 243. It is good to have choices!
     

    Sling10mm

    Expert
    Rating - 0%
    0   0   0
    Mar 12, 2012
    1,117
    38
    I just ran some 308 Winchester's loaded with 155 gr GMX's and 165 gr SST's today. The best load (approx. .75" @ 100 yards) was the GMX and IMR-4895, but unfortunately I don't think I will get the velocity I need out of my 20" barrel for the GMX to perform. I might try the SST with IMR-4895 and see if it likes it better than Varget.
     

    indyjohn

    PATRIOT
    Site Supporter
    Rating - 100%
    78   0   0
    Dec 26, 2010
    7,531
    77
    In the trees
    [STRIKE][/STRIKE]
    I just ran some 308 Winchester's loaded with 155 gr GMX's and 165 gr SST's today. The best load (approx. .75" @ 100 yards) was the GMX and IMR-4895, but unfortunately I don't think I will get the velocity I need out of my 20" barrel for the GMX to perform. I might try the SST with IMR-4895 and see if it likes it better than Varget.

    IMR-4895 is marginally slower than Varget so you stand a better chance of getting into the [STRIKE]2800s[/STRIKE] 2700s before you see signs of high pressure. I didn't catch what gun it was?

    I don't know what the GMXs want but if it is beyond 2600 fps at the muzzle, I'd say you're looking at IMR-4064 to get there.
     
    Last edited:

    Sling10mm

    Expert
    Rating - 0%
    0   0   0
    Mar 12, 2012
    1,117
    38
    IMR-4895 is marginally slower than Varget so you stand a better chance of getting into the [STRIKE]2800s[/STRIKE] 2700s before you see signs of high pressure. I didn't catch what gun it was?

    I don't know what the GMXs want but if it is beyond 2600 fps at the muzzle, I'd say you're looking at IMR-4064 to get there.

    I'm using a Savage 10 FCM Scout. My understanding is that the GMX needs 2700 fps minimum to expand, and I don't think I'll be there at 200-300 yards, the furthest I would feel comfortable taking a shot. The gun likes 125 gr SST's with Varget, but I have read those don't perform consistently on deer-sized game. I wonder how a 125 gr GMX would do on white tail?
     

    indyjohn

    PATRIOT
    Site Supporter
    Rating - 100%
    78   0   0
    Dec 26, 2010
    7,531
    77
    In the trees
    I'm using a Savage 10 FCM Scout. My understanding is that the GMX needs 2700 fps minimum to expand, and I don't think I'll be there at 200-300 yards, the furthest I would feel comfortable taking a shot. The gun likes 125 gr SST's with Varget, but I have read those don't perform consistently on deer-sized game. I wonder how a 125 gr GMX would do on white tail?

    So with a bolt gun you can push pressures just a little higher. If you're reading GMXs need 2700 then I would wager that is muzzle velocity, not impact velocity, so a 200 yd shot across a field is within reasonable limits. As for what a 125 gr GMX would do, I don't know but if hunters are taking down deer with .223 rounds, I'd say you have no worries.
     

    Sling10mm

    Expert
    Rating - 0%
    0   0   0
    Mar 12, 2012
    1,117
    38
    Sorry, I misspoke/typed. Hornady says they will expand from 3400 down to 2000 fps, but I saw on Chuck Hawks some testing that showed expansion at 2000 fps was minimal. At 2700 fps the expansion was good, but I think it might be a challenge to even get the MV up to 2700 fps out of this shorter barrel. Guess I need to break out the chronograph and see where I am. Maybe if I'm still at 2300-2400 fps at 300 yards the expansion would be adequate. Of course, then I will need some ballistic software to figure out the impact velocity at that range…. it's always something.
     

    indyjohn

    PATRIOT
    Site Supporter
    Rating - 100%
    78   0   0
    Dec 26, 2010
    7,531
    77
    In the trees
    Sorry, I misspoke/typed. Hornady says they will expand from 3400 down to 2000 fps, but I saw on Chuck Hawks some testing that showed expansion at 2000 fps was minimal. At 2700 fps the expansion was good, but I think it might be a challenge to even get the MV up to 2700 fps out of this shorter barrel. Guess I need to break out the chronograph and see where I am. Maybe if I'm still at 2300-2400 fps at 300 yards the expansion would be adequate. Of course, then I will need some ballistic software to figure out the impact velocity at that range…. it's always something.

    I've used this app on my android phone for target shooting. If I put in good data, it's provided very good elevation and windage info out to 1,000 yds. Shooter - Ballistics Calculator for iOS and Android
     

    Sling10mm

    Expert
    Rating - 0%
    0   0   0
    Mar 12, 2012
    1,117
    38
    Thanks John, good info. Hornady just mentions that the bullets are made to expand between 3400 and 2000 fps. The Chuck hawks article actually calls out impact velocities of 3400, 2700, and 2000 fps, and the picture they show says it is courtesy of Hornady. At 2000 fps it just barely expands at all, but I would hope at 300 yards I would have greater than 2000 fps. Good point about deer and 223.
     

    two70

    Master
    Rating - 100%
    19   0   0
    Feb 5, 2016
    3,753
    113
    Johnson
    I'm using a Savage 10 FCM Scout. My understanding is that the GMX needs 2700 fps minimum to expand, and I don't think I'll be there at 200-300 yards, the furthest I would feel comfortable taking a shot. The gun likes 125 gr SST's with Varget, but I have read those don't perform consistently on deer-sized game. I wonder how a 125 gr GMX would do on white tail?

    Personally, I would choose the 125 GMX over the 165 SST if you want to ensure complete penetration. I don't have direct experience with either in .308 but have used a 150 gr SST and 110 gr Barnes TTSX in .270 on a Texas whitetail and a hog. The SST did a tremendous amount of internal damage but left a roughly bullet diameter exit on a behind the shoulder shot. With our much larger deer and a shoulder shot, I wouldn't expect a full pass through. The 110 Barnes TTSX entered a 170 lb. hog from just behind the right ear and lodged just under the skin behind the left hip, penetrating through neck vertebrae, chest cavity, and hip bone for about 34". From what I have read the GMX is a bit tougher than the TTSX.
     

    Broom_jm

    Master
    Rating - 0%
    0   0   0
    Dec 10, 2009
    3,691
    48
    Personally, I would choose the 125 GMX over the 165 SST if you want to ensure complete penetration. I don't have direct experience with either in .308 but have used a 150 gr SST and 110 gr Barnes TTSX in .270 on a Texas whitetail and a hog. The SST did a tremendous amount of internal damage but left a roughly bullet diameter exit on a behind the shoulder shot. With our much larger deer and a shoulder shot, I wouldn't expect a full pass through. The 110 Barnes TTSX entered a 170 lb. hog from just behind the right ear and lodged just under the skin behind the left hip, penetrating through neck vertebrae, chest cavity, and hip bone for about 34". From what I have read the GMX is a bit tougher than the TTSX.

    Having hunted big deer in Wisconsin and Michigan, using plain old cup-n-core bullets, I can assure you that a 165gr SST, fired from a 308 Winchester, is VERY likely to exit, even on a shoulder shot.

    I'm not saying the TTSX or GMX bullets aren't tougher, but for thin-skinned medium game, the SST gets the job done very well.
     

    Hookeye

    Grandmaster
    Rating - 100%
    4   0   0
    Dec 19, 2011
    15,120
    77
    armpit of the midwest
    Have not decided on a bullet yet.
    For my rigs it'll be 4350 (have 4# left).........in .243 win.
    Pops has a pre 64 Win 94 with very good wood, FAL and a Savage bolt rig in '06.
    In any of them I figure a cup n core 150 would be fine. Maybe 130.
    All my shots will be under 200, most likely under 100.

    If the regs blow wide open in 4 yrs I'd really like to take the TC custom out in .256 Win.
    Anemic, but the cool factor pretty high IMHO.
     
    Top Bottom