thoughts on a 7-08 improved

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by wildchild, Jul 30, 2011.

  1. wildchild

    wildchild Well-Known Member

    Messages:
    127
    Joined:
    Jul 27, 2010
    I have a 6 dasher with a benchmark 3 groove lilja tactical taper on a BAT SV RBLP in a mic A5 stock.
    With hunting season coming Im looking for a cal. swap for hunting so I called Benchmark and they happen to have a 7 mm in a 9 twist on a remmy sendaro taper flutted so I hade em send it out.
    So I have reamer options and one is a 7-08 imp none turn neck and set up for 150 to 168 ish bullets.
    This sounds like an all around MN cal. and was wondering from everyone or anyone who owns one (1)if you would do another (2) what kind velocity are you seeing with these bullets weights(3) have you tried the 308 small primer brass?
     
  2. TikkaShooters

    TikkaShooters Official LRH Sponsor

    Messages:
    387
    Joined:
    May 19, 2010
    Hi WildChild

    I thought about a project like this a few years ago and came across on article on 6mmbr.com about the .284 Winchester. With RL17, you can push a 180 Berger at almost 3000 fps.

    That would be a significant improvement over the 7-08 and would not require custom dies or fireforming.

    Just get Lapua 6.5-284 brass and run them through a 284 die and you're done.

    My 2 cents
     
  3. J E Custom

    J E Custom Well-Known Member

    Messages:
    7,783
    Joined:
    Jul 29, 2004

    I have both the 7/08 and the 7/08 x 40 improved and find they both have there good points.

    The 7/08 is a great round for hunting and targets out to long distances. (600 yards+ for hunting
    and 1000 yards for targets.

    The 7/08x40imp ads about 150 to 200 ft/sec to the same bullets as the 7/08 but is still less than
    the 7 WSM is capable of.

    The 7/08x40 imp is good on brass like most 40o shouldered cases but some say not worth the
    difference between it and the 7/08.

    They both will work in a short action and if you want to use 140+ grain bullets the 7/08x40 has
    the edge.

    But for deer size game the 7/08 is ideal and capable of great accuracy and stopping ability, plus
    it is easy to load and doesent beat you up in a short, light rifle.

    When fire forming brass for the 7/08x40 I use the 308 Lapua brass and like the end results.

    I hope this is not to much information and will help you decide which one to go with.

    J E CUSTOM
     
  4. wildchild

    wildchild Well-Known Member

    Messages:
    127
    Joined:
    Jul 27, 2010
     
  5. TikkaShooters

    TikkaShooters Official LRH Sponsor

    Messages:
    387
    Joined:
    May 19, 2010
    No debate necesary. Go to 6mmbr.com and read the article about the new f-class record.
     
  6. diriel

    diriel Well-Known Member

    Messages:
    409
    Joined:
    Sep 22, 2010
    7mm-08 is certainly a nice round in stock form. In the Ackley form about the only thing that comes to mind is just making sure that it feeds reliably. They are not exactly notorious, but at the same time you do occasionally see FTF out of the 308 case-type Ackleys.

    I wonder if the AI version would allow you to make best use of H4350?

    Another powder I have not yet tried but I really want to is Alliant Power Pro 2000MR. It is a ball powder, but it is pretty temp stable @ about .85 FPS per degree of temp change from -20 to +165 I think is what was listed. Velocity increases have been pretty nice, and some folks are saying that this powder does really well in the 7mm-08. It was actually designed with the 308win using a 175gr bullet in mind.

    A little OT, I have actually been looking at the 6mmXC brass necked up to 7mm here recently. Reason being, it is a lot like the old 7mm IHMSA, but you can get Top Notch brass from David Tub for about .69c a piece per 100 which is not too bad. My thoughts are to use Varget / IMR8208XBR / AR-Comp with the 139gr Hornady GMX bullet. These powders are very temp stable, which is something I like for an ALL Weather All Use type round. Less Shoulder Thump, and less to go wrong in general. I am sorry for the OT part here!

    The 7mm-08 is definitely a great round!
    Gary
     
  7. backwoods83

    backwoods83 Well-Known Member

    Messages:
    2,208
    Joined:
    Jan 8, 2011
    Well I agree with 1 thing, a 284win loaded to length is a hassle on a short action, but I've been seeing 2940-2960 with 180 bergers and around 3070 with 168s from a 28" 9 twist in win brass with H4831. So its not that much of an exaggeration, they are becoming quite popular in ibs.
     
  8. J E Custom

    J E Custom Well-Known Member

    Messages:
    7,783
    Joined:
    Jul 29, 2004
     
    Last edited: Aug 2, 2011