Results 1 to 37 of 37

Thread: Powder - .338 Lapua?

  1. #1
    Sergeant
    Follows
    0
    Following
    0

    Join Date
    Mar 2011
    Location
    Austin, TX
    Posts
    145

    Powder - .338 Lapua?

    I've been doing a lot of reading about reloading, have the equipment and am fixing to order components. TRG-42 .338 Lapua

    I plan to shoot 300SMK's, 285 Hornandy's, or 300 Lapua Scenars

    I plan to order 8lbs. What do you recommend if I'm going to order 8lbs to start? I do care about temp. stability as we have a wide range of temps here. F 15-115. I was looking at Retumbo. Haved read very good results with it.

    My rifle shoots fantastically with Southwest .338 Lapua .300gr SMK's. Would love to duplicate the load.

  2. #2
    Sergeant
    Follows
    0
    Following
    1
    Kevlars's Avatar
    Join Date
    Jan 2011
    Location
    USA
    Posts
    614

    Re: Powder - .338 Lapua?

    Retumbo
    Sent from a rotary phone


  3. #3
    Sergeant
    Follows
    0
    Following
    0

    Join Date
    Jan 2010
    Location
    Maryland
    Posts
    502

    Re: Powder - .338 Lapua?

    + 1 for Retumbo but also had great results using VV N170.
    Cega

    Four More Years of this President = More Poor Years for generations to come

  4. #4
    Gunny Sergeant
    Follows
    0
    Following
    0
    Yasherka's Avatar
    Join Date
    Jun 2009
    Location
    Colorado Springs, CO
    Posts
    1,131

    Re: Powder - .338 Lapua?

    Also consider H4831sc. It gives great performance with my Sako and 250 Scenars.

  5. #5
    Sergeant
    Follows
    0
    Following
    0
    SavageLapua's Avatar
    Join Date
    Jan 2012
    Location
    Alberta, Canada
    Posts
    229

    Re: Powder - .338 Lapua?

    +1 on Retumbo, H1000 is another good choice, a bit cleaner burning than Retumbo...
    Luck favors the prepared...

  6. #6
    Sergeant
    Follows
    0
    Following
    0

    Join Date
    Oct 2011
    Location
    Austin, TX
    Posts
    516

    Re: Powder - .338 Lapua?

    +1 for Retumbo. Getting GREAT results with it.

    Jim G

  7. #7
    Gunny Sergeant
    Follows
    0
    Following
    0
    ChrisGarrett's Avatar
    Join Date
    Feb 2007
    Location
    Miami, Florida
    Posts
    2,163

    Re: Powder - .338 Lapua?

    For the 300s, RL-25, VV-170, VV-N570, and/or US869 are some others to consider, depending on what's available in your market.

    Chris

  8. #8
    Sergeant
    Follows
    0
    Following
    0

    Join Date
    Mar 2011
    Location
    Austin, TX
    Posts
    145

    Re: Powder - .338 Lapua?

    I'm planning on ordering from powder valley because they have the primers I want 210M for 308 and 215M for .338 lapua. Between the savings in the primer, 16lbs powder, and the bullet cost I wanted to go this route.

  9. #9
    Sergeant
    Follows
    0
    Following
    0

    Join Date
    Mar 2011
    Location
    Austin, TX
    Posts
    145

    Re: Powder - .338 Lapua?

    Originally Posted By: JimGnitecki
    +1 for Retumbo. Getting GREAT results with it.

    Jim G

    I see you are in Austin. What rifle and bullet combo? Do you shoot at Best of the West? Where do you get your powders? Do we have any good local suppliers?

  10. #10
    Gunny Sergeant
    Follows
    1
    Following
    0
    Aimsmall55's Avatar
    Join Date
    Oct 2010
    Location
    Meridian, MS
    Posts
    2,477

    Re: Powder - .338 Lapua?

    For the 300's I shoot ramshot magnum w/ excellent results. 90 grains is max and will theoretically put you at 2750 fps. ( I think). If not 2700 fps for sure
    "You know, it's really not that hard to come across as a moron".
    - Sean Little-

  11. #11
    Private
    Follows
    0
    Following
    0

    Join Date
    Dec 2011
    Posts
    75

    Re: Powder - .338 Lapua?

    I experimented with H1000 and Retumbo. Retumbo was clearly the best in my rifle.

  12. #12
    Sergeant
    Follows
    2
    Following
    0
    fireguyty's Avatar
    Join Date
    Jul 2010
    Location
    Las Vegas
    Posts
    771

    Re: Powder - .338 Lapua?

    With my 26" DTA, Retumbo was the fastest, but H1000 was easier to get accuracy with. Ended up at 89.9 under a 300 scener(2.1 under max). I get 2750 fps, and so far have made hits out to 2130 yards.

    Enjoy!
    Machining and selling custom DTA barrels.

  13. #13
    Private
    Follows
    0
    Following
    0

    Join Date
    Jun 2011
    Location
    Albuquerque, New Mexico
    Posts
    75

    Re: Powder - .338 Lapua?

    I use Retumbo, have also heard good things about H1000, guess it matters on barrel length and what your gun likes... H1000 burns quicker than Retumbo...

  14. #14
    Sergeant
    Follows
    0
    Following
    0

    Join Date
    Oct 2011
    Location
    Somewhere down in TX
    Posts
    531

    Re: Powder - .338 Lapua?

    IMR4350 has given me excellent accuracy - better than Retumbo, H1000 and R22. I don't know about how temp stable it is. My barrel is also only 26in so you may have better luck with the slower powders than I have.
    L&L

  15. #15
    Sergeant
    Follows
    0
    Following
    0
    esromvre's Avatar
    Join Date
    Dec 2008
    Location
    Black Hills SD
    Posts
    528

    Re: Powder - .338 Lapua?

    Originally Posted By: ChrisGarrett
    For the 300s, RL-25, VV-170, VV-N570, and/or US869 are some others to consider, depending on what's available in your market.

    Chris


    +1
    Best Quote that I know of.....
    "Life is hard and it's even harder when you're stupid." JOHN WAYNE.

  16. #16
    Sergeant
    Follows
    0
    Following
    0

    Join Date
    Oct 2011
    Location
    Austin, TX
    Posts
    516

    Re: Powder - .338 Lapua?

    Originally Posted By: mstang1988
    Originally Posted By: JimGnitecki
    +1 for Retumbo. Getting GREAT results with it.

    Jim G

    I see you are in Austin. What rifle and bullet combo? Do you shoot at Best of the West? Where do you get your powders? Do we have any good local suppliers?


    TRG 42
    Sierra 300g Matchking
    87g Retumbo
    Lapua cases
    Federal 215 primers
    See my current posting on "Best load is not always the most powerful".

    Yes, I shoot at Best of the West. It's the only long range facility around.

    There are no good local suppliers that I have yet found, and I;ve been trying! McBride's, which does a lot of other things right, has given up trying to be a loading supply source - their selection keeps getting smalelr and smaller. Cabela's is high priced, and seldom has 8lb powder containers anyway. Their priemrs are exhorbitantly priced. I order my powder and primers from whomever has the best current mail order price, and amortize the haz mat fee over the primers plus as much powder as I can afford to buy at the time. Bullets get added to the orders as well to at least minimize the overall freight impact (they are so darn heavy!). Powder Valley, Midsouth, Bruno's, and Midway are all typical contenders, depending on current individual prices.

    Jim G

  17. #17
    Gunny Sergeant
    Follows
    0
    Following
    0
    mouse07410's Avatar
    Join Date
    Jan 2010
    Location
    MA, USA
    Posts
    1,262

    Re: Powder - .338 Lapua?

    Originally Posted By: fireguyty
    With my 26" DTA, Retumbo was the fastest, but H1000 was easier to get accuracy with. Ended up at 89.9 under a 300 scener(2.1 under max). I get 2750 fps, and so far have made hits out to 2130 yards.

    And you have the standard DTA barrel, right? With the standard 1:10" twist?
    Mouse
    NRA Life Member

    Sniper's Hide search engine

  18. #18
    Sergeant
    Follows
    0
    Following
    0
    dstewart51's Avatar
    Join Date
    Oct 2011
    Location
    Lake Hughes, CA
    Posts
    248

    Re: Powder - .338 Lapua?

    Ive used Retumbo, H1000, and VV-N570. Found good loads with all three. I have jugs of Reloader 25 and US869 waiting for me to try. Really looking forward to trying US869.

    I liked Retumbo but it was just so damn dirty. H1000 is consistent but cant push 300gr'ers out as fast. VV-N570 has been great.

    Also going to try Reloader 33 when its out.
    Savage 110FCP HS Precision 338 Lapua Mag
    Nightforce NXS 5.5-22x56 MLR .1MIL
    20MOA Ken Farrel Steel base, NF Ultralight Med rings
    Atlas BT10 + Seekins sling rail
    Karsten Cheek Rest

  19. #19
    Private
    Follows
    0
    Following
    0

    Join Date
    Jun 2011
    Location
    Albuquerque, New Mexico
    Posts
    75

    Re: Powder - .338 Lapua?

    Now that you mention it, retumbo is pretty dirty... But it works good...

  20. #20
    Sergeant
    Follows
    2
    Following
    0
    fireguyty's Avatar
    Join Date
    Jul 2010
    Location
    Las Vegas
    Posts
    771

    Re: Powder - .338 Lapua?

    Originally Posted By: mouse07410
    Originally Posted By: fireguyty
    With my 26" DTA, Retumbo was the fastest, but H1000 was easier to get accuracy with. Ended up at 89.9 under a 300 scener(2.1 under max). I get 2750 fps, and so far have made hits out to 2130 yards.

    And you have the standard DTA barrel, right? With the standard 1:10" twist?


    Yes sir
    Machining and selling custom DTA barrels.

  21. #21
    Sergeant
    Follows
    0
    Following
    0

    Join Date
    Oct 2009
    Posts
    108

    Re: Powder - .338 Lapua?

    Originally Posted By: dstewart51
    Ive used Retumbo, H1000, and VV-N570. Found good loads with all three. I have jugs of Reloader 25 and US869 waiting for me to try. Really looking forward to trying US869.

    I liked Retumbo but it was just so damn dirty. H1000 is consistent but cant push 300gr'ers out as fast. VV-N570 has been great.

    Also going to try Reloader 33 when its out.


    Dstewart, when you checked your loads from H1000 to VN570 what were your loads relative to each other. I'm at 90 grains of H1000 and no pressure signs witht the 300 bergers , I'm getting 2715. How does that compare to N570? Are in the same grain weights

    Thanks
    Savage 110FCP H&S precision .338 Lapua Mag.
    NightForce NSX 5.5-22x56, NP-R1. ZS
    Seekins Low rings(.860)
    Murphy precision 20 Moa 110 BA base(steel)
    Accuracy 1st scope level

  22. #22
    Sergeant
    Follows
    0
    Following
    0
    dstewart51's Avatar
    Join Date
    Oct 2011
    Location
    Lake Hughes, CA
    Posts
    248

    Re: Powder - .338 Lapua?

    Just going off the top of my head, 89gr of N570 was right at 2700FPS. I ran it up to 94gr with out trouble (with virgin brass). I started to see issues with H1000 at 92gr. In the 89-91gr range velocity was comparable but you could load up N570 more and push them much faster then H1000 if you wanted to.
    Savage 110FCP HS Precision 338 Lapua Mag
    Nightforce NXS 5.5-22x56 MLR .1MIL
    20MOA Ken Farrel Steel base, NF Ultralight Med rings
    Atlas BT10 + Seekins sling rail
    Karsten Cheek Rest

  23. #23
    Sergeant
    Follows
    0
    Following
    0

    Join Date
    Oct 2009
    Posts
    108

    Re: Powder - .338 Lapua?

    Thanks!
    Savage 110FCP H&S precision .338 Lapua Mag.
    NightForce NSX 5.5-22x56, NP-R1. ZS
    Seekins Low rings(.860)
    Murphy precision 20 Moa 110 BA base(steel)
    Accuracy 1st scope level

  24. #24
    Gunny Sergeant
    Follows
    0
    Following
    0
    mouse07410's Avatar
    Join Date
    Jan 2010
    Location
    MA, USA
    Posts
    1,262

    Re: Powder - .338 Lapua?

    I wonder why so few seem to use/try Ramshot Magnum. I was told it's one of the cleanest-burning powders, and gives decent (maybe not the best) velocity...

    Anybody cares to comment?
    Mouse
    NRA Life Member

    Sniper's Hide search engine

  25. #25
    Sergeant
    Follows
    2
    Following
    0
    fireguyty's Avatar
    Join Date
    Jul 2010
    Location
    Las Vegas
    Posts
    771

    Re: Powder - .338 Lapua?

    Originally Posted By: mouse07410
    I wonder why so few seem to use/try Ramshot Magnum. I was told it's one of the cleanest-burning powders, and gives decent (maybe not the best) velocity...

    Anybody cares to comment?


    I always try all the most popular powders to see what my rifle gets velocity with. All were shot in my 1-10" twist 26" factory DTA 338 LM. I started low and shot one shot until I found pressure.
    Remington 9 1/2M
    300 Scenar
    2.969 at olgive

    4831 SC
    77g 2456 fps
    78g 2488 fps Sticky bolt...stopped
    79 is max

    Ramshot Magnum
    86g 2507
    87 2564
    88 2543 sticky bolt, stopped
    90 is max

    Magpro
    87 2615
    88 2636
    89 2623
    90 2665
    91 2677 max
    92 2714 no pressure signs, but stopped

    Retumbo
    89 2675
    90 2692
    91 2746
    92 2762
    93 2800 raised primer, stopped
    94 is max

    H1000
    87 2576
    88 2622
    89 2647
    90 2691
    91 2706
    92 2750 max
    93 2761 sticky bolt, stopped

    My OCW test with H1000 worked out to 89.9. Shots at distance puts adjusted fps at 2750. If I told you guys the accuracy I am able to achieve with this load, most would call me a liar.
    Machining and selling custom DTA barrels.

  26. #26
    Long range rifle shooter
    Follows
    1
    Following
    0
    JFComfort's Avatar
    Join Date
    Mar 2009
    Location
    Las Vegas, Nevada
    Posts
    1,792

    Re: Powder - .338 Lapua?

    I can vouche for Ty's .338 load. I have been fortunate to spend some time behind it.

  27. #27
    Sergeant
    Follows
    0
    Following
    0

    Join Date
    May 2011
    Location
    Pleasant Shade ,Tn 37145
    Posts
    325

    Re: Powder - .338 Lapua?

    I have settled on 89 grs H1000 with the 300 Scenar in Lapua brass loaded .010 jammed at 3.715 COL,,

    I havent chronied it but it works out on my charts to be right at 2700 fps,

    shooting a Savage 110 FCPHS and I am not sure but I think it shoots better than Daddys TRG42,,

    I know there is a lot of gun there for 1200 $$$$
    you never met a

  28. #28
    Sergeant
    Follows
    0
    Following
    0
    dstewart51's Avatar
    Join Date
    Oct 2011
    Location
    Lake Hughes, CA
    Posts
    248

    Re: Powder - .338 Lapua?

    ^ Jammed? Have you played with the seating depth much? I ran the Scenars jammed to find max charge but then ran 3 round groups every .005" from .010 jam to .030 jump. I found the Scenars didn't like to be jammed at all. Best groups came in around .015 jump but they still grouped well when I tested then at .075 and .100 jump. The more jump the lower the MV by a surprising amount.
    Savage 110FCP HS Precision 338 Lapua Mag
    Nightforce NXS 5.5-22x56 MLR .1MIL
    20MOA Ken Farrel Steel base, NF Ultralight Med rings
    Atlas BT10 + Seekins sling rail
    Karsten Cheek Rest

  29. #29
    Sergeant
    Follows
    0
    Following
    0

    Join Date
    Oct 2009
    Posts
    108

    Re: Powder - .338 Lapua?

    Originally Posted By: dstewart51
    ^ Jammed? Have you played with the seating depth much? I ran the Scenars jammed to find max charge but then ran 3 round groups every .005" from .010 jam to .030 jump. I found the Scenars didn't like to be jammed at all. Best groups came in around .015 jump but they still grouped well when I tested then at .075 and .100 jump. The more jump the lower the MV by a surprising amount.


    I saw the same thing with the Lapua factory round, using 300 scenars. Great load and jumping a whole bunch!
    Savage 110FCP H&S precision .338 Lapua Mag.
    NightForce NSX 5.5-22x56, NP-R1. ZS
    Seekins Low rings(.860)
    Murphy precision 20 Moa 110 BA base(steel)
    Accuracy 1st scope level

  30. #30
    Gunny Sergeant
    Follows
    0
    Following
    0
    mouse07410's Avatar
    Join Date
    Jan 2010
    Location
    MA, USA
    Posts
    1,262

    Re: Powder - .338 Lapua?

    Originally Posted By: fireguyty
    Originally Posted By: mouse07410
    I wonder why so few seem to use/try Ramshot Magnum. I was told it's one of the cleanest-burning powders, and gives decent (maybe not the best) velocity...

    Anybody cares to comment?


    I always try all the most popular powders to see what my rifle gets velocity with. All were shot in my 1-10" twist 26" factory DTA 338 LM. I started low and shot one shot until I found pressure.
    Remington 9 1/2M
    300 Scenar
    2.969 at ogive

    ........

    Ramshot Magnum
    86g 2507
    87 2564
    88 2543 sticky bolt, stopped
    90 is max

    .................

    H1000
    87 2576
    88 2622
    89 2647
    90 2691
    91 2706
    92 2750 max
    93 2761 sticky bolt, stopped

    My OCW test with H1000 worked out to 89.9. Shots at distance put adjusted fps at 2750......

    Looks like I need to get some H1000 and start playing with it. How dirty does it burn, BTW? Compared to other powders?

    And I am very surprised wrt. Ramshot Magnum performance, to say the least (and I got an 8-lb jug of it)... Ramshot manual says to expect 2500fps from 83gr and 2700fps from 90gr (max) of this powder with 300gr SMK and Win WLRM primer (barrel is 26" w/1:10 twist, like what we're using).

    Does 300gr Scenar behave that much differently from SMK presure/speed-wise? Any idea why it shows such a poor (worst in the group) performance?
    Mouse
    NRA Life Member

    Sniper's Hide search engine

  31. #31
    Gunny Sergeant
    Follows
    1
    Following
    0
    Aimsmall55's Avatar
    Join Date
    Oct 2010
    Location
    Meridian, MS
    Posts
    2,477

    Re: Powder - .338 Lapua?

    Ramshot mag is very slow, smooth and clean. Have a 700 p .338 that with 89.0 grains seated @ 3.680" will give me 3 " groups at 520 yards. That is with lapua brass and 300 smk's. Velocity is slow...2520 but I don't care. Still supersonic at 1k
    "You know, it's really not that hard to come across as a moron".
    - Sean Little-

  32. #32
    Sergeant
    Follows
    0
    Following
    0

    Join Date
    May 2011
    Location
    Pleasant Shade ,Tn 37145
    Posts
    325

    Re: Powder - .338 Lapua?

    3 shots 100 yards 89 H1000 .010 jammed 300 Scenar



    4 shots 500 yards same load,,I may shorten them and try it,,I am just getting used to the rifle,,did make hits on the 12 inch gong at 900 in the tornado this morning,,

    you never met a

  33. #33
    Gunny Sergeant
    Follows
    0
    Following
    0
    mouse07410's Avatar
    Join Date
    Jan 2010
    Location
    MA, USA
    Posts
    1,262

    Re: Powder - .338 Lapua?

    Originally Posted By: fireguyty
    Originally Posted By: mouse07410
    I wonder why so few seem to use/try Ramshot Magnum. I was told it's one of the cleanest-burning powders, and gives decent (maybe not the best) velocity...

    Anybody cares to comment?


    I always try all the most popular powders to see what my rifle gets velocity with. All were shot in my 1-10" twist 26" factory DTA 338 LM. I started low and shot one shot until I found pressure.
    Remington 9 1/2M
    300 Scenar
    2.969 at ogive........

    Could you please post the COAL? Is it around 3.760" (CIP standard)? As I don't use Scenars, I don't know what the ogive-measured length translates to in COAL terms.

    Originally Posted By: Aimsmall55
    Ramshot mag is very slow, smooth and clean. Have a 700 p .338 that with 89.0 grains seated @ 3.680" will give me 3 " groups at 520 yards. That is with lapua brass and 300 smk's. Velocity is slow...2520 but I don't care. Still supersonic at 1k

    That's good to hear.

    I'm still surprised why Ramshot manual claims 2500fps with 83gr starting load, while you and TY seem to be getting 2500-ish near the max load (instead of 2700fps like Ramshot claims). Still, a smooth, consistent and clean powder will work for me...
    Mouse
    NRA Life Member

    Sniper's Hide search engine

  34. #34
    Gunny Sergeant
    Follows
    3
    Following
    0
    lazy21's Avatar
    Join Date
    Dec 2007
    Location
    Houston, Tx.
    Posts
    3,148

    Re: Powder - .338 Lapua?

    tag
    Send me a PM for the best deal on a US Optics
    I'm now a Dealer for Vortex Optics and Schmidt & Bender
    After the hide update, I'm having problems with my PM's.....text if you need to contact me (832)519-5041

  35. #35
    Sergeant
    Follows
    2
    Following
    0
    fireguyty's Avatar
    Join Date
    Jul 2010
    Location
    Las Vegas
    Posts
    771

    Re: Powder - .338 Lapua?

    Originally Posted By: mouse07410

    Looks like I need to get some H1000 and start playing with it. How dirty does it burn, BTW? Compared to other powders?

    And I am very surprised wrt. Ramshot Magnum performance, to say the least (and I got an 8-lb jug of it)... Ramshot manual says to expect 2500fps from 83gr and 2700fps from 90gr (max) of this powder with 300gr SMK and Win WLRM primer (barrel is 26" w/1:10 twist, like what we're using).

    Does 300gr Scenar behave that much differently from SMK presure/speed-wise? Any idea why it shows such a poor (worst in the group) performance?


    Dirty? I go about 300 rounds between cleanings. I haven't seen a fall off in accuracy, but 300 seems like a good round number.

    I couldn't comment on the SMK, I have never used it.
    Machining and selling custom DTA barrels.

  36. #36
    Private
    Follows
    0
    Following
    0

    Join Date
    Feb 2012
    Posts
    42

    Re: Powder - .338 Lapua?

    So whitch powder do you run, Retumbo or H1000. I have the same gun and having trouble getting consistent groups. Have been testing with H1000 @ 89-91 grs. with a .035" jump.Can you help me?

  37. #37
    Sergeant
    Follows
    0
    Following
    0

    Join Date
    Oct 2009
    Posts
    108

    Re: Powder - .338 Lapua?

    If your ok with not using magazine length rounds try loading the bullet so it just touches the lands, this is typically where most start then if required back off from there. Some bullets are finicky about jump and some are more tolerant. True vlds usually like to be closer to the lands, bullets like smk, and Berger hybrids have a little more tolerance to amount of jump.

    So start on the lands and back out if needed, I usually back out .005 intervals.
    Savage 110FCP H&S precision .338 Lapua Mag.
    NightForce NSX 5.5-22x56, NP-R1. ZS
    Seekins Low rings(.860)
    Murphy precision 20 Moa 110 BA base(steel)
    Accuracy 1st scope level