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Thread: Filler convert! 30-06 311284 w 2400 Thx Larry Gibson!

  1. #1

    Filler convert! 30-06 311284 w 2400 Thx Larry Gibson!

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    I have been trying to "tighten" up the groups I was getting w a new to me '03 Sporter clone. In general, I was getting 2.5" groups at best. Some of this was the shooter getting used to a new rifle plus experimenting with the bullet, load etc.
    I have had excellent results with my other 03 rifles with 311284 and 16.0 grains of 2400 without fillers, but while I was getting grouping in this rifle, I thought it was capable of a tighter pattern. To make a long story shorter, I had read a comment by Larry Gibson that he considered fillers anytime the load density was less than 80%. I'm working from memory here Larry, I hope I got that right. So I tried it today, and the targets above show the result of a 10 rd string at 100 yards ( first target is after the first 5, my spotting scope wasn't giving me a good picture of the group so I took a walk down range). fwiw I was shooting iron sights, Lyman 48 rear and a 17a front w aperture.

    Even w the flyer I am happy with the group, you can literally cover the 9 shot cluster with a quarter. This is the best group I have shot to date with any of my 03s.

    The only thing different in the load today was that I used a 1.0 grain dacron filler...
    installed per Larry's and others instructions in the sticky on fillers and related post comments.

    The load details are:

    LY 311284, Rotometal #2 alloy, sized .310 (nose measures .300)
    2500 lube
    LC 68 Match brass, neck sized
    WLR primers
    16.0gr 2400
    3.26" oal (bullet seated out to the edge of the first grease groove)

    Now I have to get back to my NOE 311291 and find the best combination for it.

    I find fillers tedious to make and install, but after today I'm convinced they make a difference.

  2. #2
    Boolit Master 303Guy's Avatar
    Join Date
    Oct 2008
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    New Zealand
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    I'd be very happy with that! And that with iron sights!
    Rest In Peace My Son (01/06/1986 - 14/01/2014)

    ''Assume everything that moves is a human before identifying as otherwise''

  3. #3
    Boolit Master
    avogunner's Avatar
    Join Date
    May 2011
    Location
    Northern Va
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    490
    It's always wise to follow Larry's advice but also -- Great shooting!! Even with a "perfect" load and great rifle, my eyes wouldn't allow me a group like that. It sucks getting old!

  4. #4
    Thanks for the kind words.

    fwiw I'm 70 and was wearing trifocals, and the last time I remember shooting a group this good I was about 15 shooting NRA small bore. It will probably be a while before I do it again, but luck was with me yesterday. btw I don't know why the photos came out sideways, they aren't that way in my photo file.

  5. #5
    Boolit Master Tripplebeards's Avatar
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    Apr 2017
    Location
    Southern Wisconsin
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    1,134
    Holly moly! Larry knows his stuff. Nice shooting!

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check