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Thread: New 8208 pull down target results.

  1. #1
    Join Date
    Mar 2006
    Posts
    80

    New 8208 pull down target results.

    This target is from a practice session fired 2/12/11 at Ben Avery rifle range Phoenix AZ, shot with my new rail, Krieger 13.5 twist barrel smithed by me. Velocities were exceptional 54 on my Bruno powder measurer equaled 3444 average which weighed 29.4 grain. I also shot a hotter load of which did not group very well, however the velocity kept climbing to the mid 3500 fps. Dan Sutton was kind enough to set up his Ohler 35 for me and I thank him for that. Standard deviation was 7 very good I thought. The Group height was consistent all shots went with conditions barrel length was 26.5". Over all 19 groups averaged a very respectable .1789 which for the conditions in Phoenix was excellent also 3 groups in the zeros were the highlight. Most groups were shot with my double-o bullet except the last 4 with my new bullet I call the UNO. The die was made by George Ulrich and designed by me. This is a very good powder, of which I will be keeping a bunch for myself.

    Lester Bruno
    Bruno Shooters Supply

    Click image for larger version. 

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  2. #2
    Join Date
    Feb 2004
    Location
    Davenport, Iowa
    Posts
    404

    My Results--New 8208 Pull Down

    Comments;
    This powder is cleaner than my previous lots of 8208
    This meters great

    Test Products:
    BAT Heavy Varmint Bag gun 13.5 #
    Barrel 22" length--Kreiger 1/14
    Terry Meyer 68 gr--BT--Bullets--8 1/4 Olgive
    All bullets set on jam
    Chronograph = Gamma Model, Shooting Chrony
    Jones powder measurer, also all loads weighed

    Stated Purpose:
    Determine bullet speed with different loads

    IMR 8208 powder Lot # 122910
    Load--53 clicks Jones (29.9 gr)
    Speed==3332--3341--3330----Group=0.146
    Load--54 clicks Jones (30.4 gr)
    Speed==3413--3414--3422----Group= 0.294
    Load--55 Clicks Jones (31 gr)
    Speed==3465--3456--3479----Group= 0.209
    Load--53.5 Clicks Jones (30.2 gr)
    Speed==3385--3389--3393----Group= 0.094

    For comparison

    Previous lot of 8208 on hand--Lot # unknown
    Load--53.5 Clicks Jones (30.2gr )
    Speed==3334--3328--3302-----Group= 0.204
    N-133 Lot 28708---00142
    Load--53.5 Jones (29.0 gr)
    Speed==3380--3364--3371----Group=.122

    Test conditions
    Temp 38 degrees, 42% RH
    Wind left to right at 5-10 MPH
    Did not use wind Flags--Ground froze--BUMMER
    Shooting over partial snowy and partial melted snow ground
    Bright sunny day

    Supplied for information only

    CLP

  3. #3
    Join Date
    Mar 2006
    Posts
    80
    C.L. Great report.

    Lester Bruno

  4. #4
    Join Date
    Apr 2008
    Location
    Cloudcroft, NM
    Posts
    676
    I just tested some of this same Lot (122910) of 8208. Up until now, I had only tested the new XBR version. This was a chronograph only session with the full length 30-30, 118gr bullets, and a 23" barrel. I started out by shooting a test load of 40gr of Iraeli 2015 to establish a baseline. This testing has proven that this powder is the perfect burn rate for the 30-30 with medium hot loads. Any 30 caliber case with capacities of the typical hunter class round (30X44 - 30X47) would be very well suited to this powder.

    Test load:
    40.0gr 2015 - 3123 fps

    8208 (122910) loads:
    39.0gr - 2885 & 2891 fps
    41.0gr - 2982 & 2991 fps
    42.0gr - 3062 & 3066 fps
    43.0gr - 3131 fps - very close to all I could get in case - sun went down and gave error, so just one good reading

    42.5gr - New 8208XBR - 3105 fps - chronograped on a different day

    Hunter class shooters should try some.

    Michael

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