Favorite 6mm BR Loads

Discussion in '6BR, 6BR Improved & Wildcats' started by Forum Boss, Nov 22, 2004.

  1. Forum Boss

    Forum Boss Administrator

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    We've included data on most of the most popular 6mm medium to long-range match bullets in our Bullet Comparator. Tell us how you load these pills to achieve tight groups and match-winning scores.
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    BountyHunter
    6 BRH improved: Trim necks down .200 with KM turner, then neck up to 6.5mm. Resize down until leave small false shoulder on case and bolt is tight to close on empty case. Primer pockets reamed with modified Hart primer pocket reamer.

    Load fireforming load, fire and perfectly aligned case without all the cream of wheat/tissue fuss. Very accurate practice/ground hog load.

    Bullets are 100 gr Clinch Rivers sorted by bearing surface with Buhay Ogive checker,page 19 of RW Hart catalog and $125). BC of this bullet is .540-.560 reportedly and is accurate as heck and quality is the highest.

    Varget or N540 are powders of choice. BR2 or BR 450 primers are choices. 450 cut my ES in half. With careful reloading, ES should be single digit. BR is super easy to load and accurate as heck. Great and inexpensive cartridge to shoot. -- BH
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    ReedG
    I am shooting a Savage 12 BVSS-S that has a 1:14 barrel, 22 inches long and a Rifle Basix Sav-2 trigger. Otherwise a factory rifle. I have spent ever since the snow melted this spring working up loads and have found this to be a very accurate and easy-to-load caliber. I have loads for Sierra 55-gr. BlitzKings and 70-gr. HPs; Hornady V-Maxes in 58, 65 & 75-gr.; but what it likes best so far is 68-gr. Bergers,the standard flat base HP) with 34.2-gr. of Varget. I just tried 74-gr. Bergers yesterday and it looks like they will shoot as good as the 68s. I have put 2,083 rounds through this rifle since March, and the average of all the 5-shot groups is .528",you gotta love a spreadsheet!). It will regularly shoot into the "3s" at 100 and if I'd stop fooling around "working up loads" and learn to shoot it, it probably would do a lot better. It has shot 5-shot groups in the "1s",.142" and .159" last week), but I haven't done it consistently yet.

    If any of you are shooting 1:14 twists,seems most have 1:8s or so) and want me to post some loads, let me know. I use Lapua cases, BR4 primers and Benchmark and Varget powders have been the best. Mickey cut a minimum spec factory chamber with .272" neck and I use Redding dies with .268" button. I have cases that have been loaded 18 times that still mic exactly the same as factory new.,And, by the way, this was a "used BR" barrel that Mickey installed for me. His work is meticulous.)
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    Moderator
    Read--Thanks for the info. This is actually very helpful. Richard Franklin of Richard's Custom Rifles just pulled the 1:10 bbl off his 6mm gun and is shooting a 1:14 now with 75gr V-maxs. We were surprised he could stabilize a 75-grainer in a 1:14 but he says it works fine. So you may be on to something...
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    MarkS
    Richard has chambered 3 BR's & 1 6AI for me, And I have a BAT action coming next month, that will be the 4th BR. He does Great work. Check out his stocks too. His 1000 yds stock is the best on the market, That I have seen.
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    PatL
    Re the 75 grain pills @ 1:14, I've shot 80 grain Bergers that grouped very close to my 70's. Go figure! Conventional wisdom had me thinking 1:14 was too slow. Any ideas? Was I just lucky?
    [Continued]
     
  2. Forum Boss

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    Favorite 6mm BR Loads,20 Merged Posts)

    FAVORITE Loads Cont'd

    ReedG
    My gunsmith is Mickey Coleman of Coleman Rifles,they are listed on benchrest.com), a fine Alabama gentleman who I met on BR.com. He has been a tremendous fount of information for me. He put a used Shilen BR barrel on my Savage action, without the barrel nut because the barrel was too large for the nut. These used BR barrels have lost,or never had) the ability to shoot into the "0s", but will shoot great for a long time. My barrel has over 2,000 rounds through it now and will still consistently group in the "3s". Mickey charges a pittance for these barrels plus his usual chambering and installation fee. For less than the price of a blank, you can get a great barrel with a BR quality chamber and installation. Great for us "working guys"!

    My most consistently good load for this 6 BR is 34.2-gr. of Varget with a Berger 68-gr. HP and CCI BR4 primers. In my minimum-spec factory chamber with .272" neck this load is so mild that it doesn't even begin to flatten the primer. Never Chrony'd this load, but the same load with 70-gr. Sierras turns 3275 fps. I use Lapua cases, trimmed to 1.56" with the mouth deburred and chamferred lightly, partial neck sized,.180") with a .268" button in Redding "S" dies. I can usually load 5 times before I have to bump the shoulder back to keep the bolt closing smoothly. I don't do anything to the primer pockets except clean them with an RCBS brush during reloading.

    Lapua 6 BR cases are as close to perfect as brass gets, in my opinion. I weighed 200 cases last week and the maximum spread from lightest to heaviest was 1.9-gr. On cases that weigh +/- 126 gr. I think that is phenomenal.

    Some of my cases are getting a "donut" near the base of the necks, but it is well below where my bullets are seated and at this point doesn't seem to be a problem. My first box of 100 cases has been loaded 18 times. I annealed the necks after 15 loadings, just because I thought I should, but I cannot tell any difference.
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    JoeR
    ReedG--I have been shooting the 74 Bergers in my 14 twist 40X BBR Rem. factory barrel for 15+ yrs and love this load...6BR Rem. .266"nk.,33.3gr Varg. 74gr Berg. non coated, Lapua brass,Rem.before the good Lapua)...It has a sack full of rounds down the tube, don't keep records as I should but I would estimate 3-4000, but it still shoots much better than it should, even with a land on the right side of the throat worn off for about 3/8" from poor cleaning procedure.,I now use a Lucas bore guide and clean more carful).... Last year I shot a 200 19X at 500yds. but it or me seemed to drop off a little at 600yds.. [snip].. So don't be afraid to stretch the 74s out to around 600yds anyway...
    A friend shot it at a non-reg. 100yd score shoot last year and beat out some good shooting 6PPC full-fledged bench guns for first place... At the present time I believe it will shoot with my Panda or Teddy 6PPC guns and believe that if I had the Lapua brass back when it was new it would have been very competetive in NBRSA or IBS 100 & 200yd benchrest... I know this sounds like I am bragging, but if so, it is just on this 6BR, load and this barrel, as I know I have not done my part.... Have a good .1"...
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    MelB
    My favourite varmint load for my 6BR bench/Litefly gun with a 1x12 twist Maddco barrel is V-max 75gr with 32.5 grains of,ADI2208) Varget. This load with selected bullets will usually group in the high .2 to low .3" mark at 100 meters. Most of the custom BR bullets will shoot marginally better at this distance.For me the V/max give a better cost efective result.
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    Frank Blum
    I have been shooting some nice groups with the 75 Sierra over 30.5 of H-322. I have not yet shot pass 400. It is under .5 MOA out that far. Later! Frank
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    [continued]
     
  3. Forum Boss

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    Favorite 6mm BR Loads,20 Merged Posts)

    James in Wyoming
    I have two 6BRs, both cut with the same reamer by Mike Bryant,he is a GREAT GUNSMITH) to a .265 tight neck for the Lapua brass. One is a "walking varmint gun", 22" 1 in 14 twist Hart barrel on a Cooper model 21 action and in an awesome piece of wood. The other is a 26" 1:8 twist Hart, Panda action, McMillan MBR stock, weighs in about 14.5 lbs. The walking gun has a Leupold 6.5x20, the heavy a Nightforce NXS 8x32. Both shoot better than I can usually hold them, very nearly,and sometimes better) than my 6PPC bench gun.

    I use only Lapua brass and now CCI 450 primers, though it took a few rounds over the chronograph to convince me that SD and ES were a great deal better with these than with Federal 205s. I have convinced myself that this is the primer to use for this round as everything is measurably better, but why this should be the case I do not know. I have a Neil Jones custom sizing die and seat all bullets with a Wilson in line seater for both rifles. In the walking varmint gun, I shoot only 65gr bullets with 33gr of VV135,a little less in the summer as this clocks 3600+ in the 22" barrel and is quite warm). I have a large supply of Starke 65gr varmint bullets which shoot beautifully from this now defunct company, but the 65gr V-max is nearly as accurate and spectacularly explosive at these velocities.

    In the big gun, it is 107 matchkings with 30.7gr Varget for 2875fps and astonishing accuracy to 600yds, which is as far as I have shot it for groups. On a calmish day -- which we almost never see in Wyoming -- I think this would be a competitive gun in the 1000 yard light class. Case prep with the Lapua consists of neck-turning on Neilson "pumpkin" mini lathe, loading, and shooting. I don't mess with Lapua flash holes as I do not think it is worth the effort, uniform the pockets after firing with a Sinclair tool and check concentricity on a gauge of the same make. The Neil Jones dies are worth every penny as I never have a case which even approaches .001 runout if I have done a proper job of neckturning.

    Were I to do it over again, I'm not at all sure I would go for the tight neck chamber,Mike has a reamer which cuts a perfect chamber for no-neck-turn Lapua brass) and for a high volume varmint gun I think this would be the way to go, as practical varmint accuracy would probably not be diminished....
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    RCole
    James--Mike did my 6mmBR with his .265 reamer also and it shoots very well. And to add to what you have already said, he is one of the nicest guys you will ever meet. He truly wants the guns he works on to be the best that they can be so you can be the best that you can be.
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    James in Wyoming
    RCole--absolutely, Mike Bryant is, in addition to being extremely skilled, an extraordinarily nice guy. I forgot to mention very reasonable, and quite quick to complete his projects. If any readers of this board are searching for a gunsmith for a 6BR project, he would definitely have my unqualified recommendation, and happy to see him on the list of "top gunsmiths".
    - - -
    6brguy
    Favorite Loads:

    In 1:8 twist: 105amax, 30+g of varget with CCI 450
    In 1:14 twist: 70g blitzking, 30+g of h322 with CCI BR4
     
  4. CRGuns

    CRGuns

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    Favorite 6mm BR Loads,20 Merged Posts)

    32.8gr Vargetand 75gr Sierra's are grouping at .5 @ 200yds for me on a rainy breezy day. Savage single shot trued by SSS with their BR trigger & reciol lug in a factory laminate stock with a lightly used Kreiger barrel that came off a 6ppc BR rig. I had a local guy chamber it regular neck and turn the barrel down so I could still use the barrel nut.
     
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  5. SHa

    SHa

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    Favorite 6mm BR Loads,20 Merged Posts)

    34gr N140 70gr Blizking slightly into lands works well. v3 3300fps from 21" barrel
     
  6. jacquemet

    jacquemet

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    Favorite 6mm BR Loads,20 Merged Posts)

    As I also shoot at long range, heavy bullet : 105gr. Lapua Scenar, Lapua brass, CCI BR 4 primer and 31 grains of Vihtavuori N150.
    But, may be, the Norma brss could allowetter accuracy : it is more flexible than Lapua brass and my lats tests showed that I can get better groups with it .... veryting else beeing thevsame,bushing included).
     
  7. jacquemet

    jacquemet

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    Favorite 6mm BR Loads,20 Merged Posts)

    As I use my rounds not only at short / middle range, but also up to 850 meters,more than 900 yards), I use a heavy 6mm : Lapua Sceanr moly 105 grains, loaded on a Lapua 6 BR case, with 31 grains of N150 and CCI BR4 primers. But, even with this heavy bullet for a 6mm, it is still sensitive to traverse wind at very long range !
     
  8. PatL

    PatL

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    Favorite 6mm BR Loads,20 Merged Posts)

    Tried my first loads with 68 grain Chism bullets today. Haven't had time to tune them yet, but my best 5 shot groups were in the low .3's That's with 32.0 Benchmark and the bullets touching per Guy Chism's advice.
     
  9. jwv2001

    jwv2001

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    Favorite 6mm BR Loads,20 Merged Posts)

    Here are a couple of loads that have shown to be very good for me with absolutely no signs of excessive pressure in my rifle. The static components are:
    6mmBR Lapua brass
    70 gr. Nosler Ballistic Tips
    Remington 7 1/2 primers
    My rifle is a Cooper M22 Montana Varminter with a 26" barrel.
    Chronograph is an Oehler Model 35P.

    34 gr. Varget 3361 fps. avg. 12 Sd
    32.5 gr. VV N135 3400 fps. avg. 9 Sd

    Both grouped in the high .1's - low .2's
     
  10. Forum Boss

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    Favorite 6mm BR Loads,20 Merged Posts)

    FYI, I'm getting about 2810-2850 fps with the 30.0 gr Varget load with naked 105s, and CCI 450s, in a PacNor 27" 3-groove barrel. The Velocity varies with seating depth. Lower number .020" into the lands,2.355" OAL), higher number .010" jumped,2.325" OAL).

    Some of the variance between German's values and mine could be the chronograph, but also the moly-coating on his bullets reduces pressure. One barrel may shoot faster than another as well.

    NOTE how moving AWAY from the lands can actually increase pressures in a small case like the 6BR. Also, if you have a longer freebore and seat in to the lands you may need more powder to reach these same velocities.
     
  11. Bret

    Bret

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    Favorite 6mm BR Loads,20 Merged Posts)

    My best load is 31gr. of VV N133 with 66gr. Barts Ultra's or 66gr. Fowlers just touching for my 200yrd. shooting. My rifle is a Ruger M77 MK2 with a 22in. HV Broughton 1/14 twist with a .263nk. chambered in 6mmBR Norma using Lapua brass, Action is trued and bedded, trigger is at 1 1/2 lbs., Scope is a Weaver T-36. All work was done by Bob Green,top 'smiths on BR site) and shoots very well. The gun and a target are pictured on the wildcat forum under 6talldog. Thanks again Bret.
     
  12. USAPatriot

    USAPatriot

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    Favorite 6mm BR Loads,20 Merged Posts)

    Bret, what sort of velocity did you get with your 66 Barts and 31g of N133? That seems a bit much pressure wise but will research it further. I have a few dozen of those slugs still here to use up. -Rod-
     
  13. roebuck

    roebuck

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    Favorite 6mm BR Loads,20 Merged Posts)

    Help I need some reloading info please. I am currently shooting an RPA rifle 6mbr using factory loads such as lapua and Norma 105s in a 1-8 twist with a 28 inch bull border barrel. This rifle has produced 1.5 inch group at 600 yds with lapua 105s,there are 15 witnesses on the day of the shoot) i have just won 2 f class shoots out to 600 yards last week with this rifle but i still think it will shoot better with home loads:crazy: can anyone help with suggestions, real ones ) as to trying diffrent loads in this rifle i have shot it at 1oooyds and it shot very well but i need some help trying to improve its performance and using the 28 barrel with maximum effect. over to you boys now regards Chris:thumb:
     
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  14. Forum Boss

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    Favorite 6mm BR Loads,20 Merged Posts)

    Chris--1.5" at 600 yards is about as good as it gets. If you want some more velocity, try Norma 203B or RL 15. Put those Scenars .010-.015" into the lands. You should also try the Berger 105 VLDs, jammed the same amount or more. A good starting load for 203B or RL15,very similar powders) is 30.0 grains, but some guys are running as much as 31.2 in canted land barrels.

    Generally speaking, the closer you can get to 3000 fps with the Bergers the better, but watch your pressure signs, particularly the ejector marks.

    For your handloads we advise not to mess with the flash-holes--you can gently deburr them,if you see some burrs in a hole) but don't ream them larger. Note: recent lots of Scenar 105s are about .005" narrower in diameter than the Bergers--your barrel may show a strong preference for one over the other--but this also means a max load with the Lapuas may be too hot for the Bergers. Start .5 gr lower for your Berger load.
     
  15. Mikem

    Mikem

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    Favorite 6mm BR Loads,20 Merged Posts)

    This load works well for me from a 6-BR, 26" Pac-Nor SM 1 in 8 twist, three groove barrel. 80g Berger FB match, with 30.5g of Varget and CCI BR4 primers, in Lapua fire formed and neck sized brass, with the bullet set .015 into the lands.
    It Cronyed at 3022fps Avg, from this barrel, and no sign of high pressure.
    I have only used it out to 300 yds so far. But shoots in the .2 moa most of the time. But I'm getting old, so you might do better.
    Sorry if you were only interested in 105g bullet loads.
    Mike..
     
  16. mitchellchandler_au

    mitchellchandler_au

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    Favorite 6mm BR Loads,20 Merged Posts)

    Rifle: trued rem700
    Stock: aussie laminate in MBR profile
    Scope: NF 12-24
    Load: 105 A-MAX, 29.9 of varget,AR2208), Lapua case, federal SR primer.
    Barrel: Lilja 3 grove with 6mmbr chamber with a .270 neck
    Velocity: 2835
    ES 19fps
     
  17. jarhead1104

    jarhead1104

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    Favorite 6mm BR Loads,20 Merged Posts)

    I have a trued Remington 700 action with an 8 twist Kreiger barrel. It will shoot 31.7 grainss of RL15 and 105 Lapua Scenars consistently under 2" at 600 yards,5-shot groups). The cases are Lapua 6BR with CCI 450 primers. I have tried the CCI BR4 primers but got better resluts with he 450's.
     
  18. Forum Boss

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    Favorite 6mm BR Loads,20 Merged Posts)

    NOTE: I have no doubt this is a good load for Jarhead. Some rifles can handle this much RL15. However, this load will be WAY hot for some other guns. Much depends on the freebore of your chamber and your bore dimensions. With RL15 and 105s we recommend you start at 29.5 grains and work up. A practical max load in many 6BR rifles will be 30.5-30.7 grains.
     
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  19. AckleymanII

    AckleymanII Gold $$ Contributor

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    Favorite 6mm BR Loads,20 Merged Posts)

    I'll throw in some data for the guys that like light bullets. I had a 21 1/2" HS fluted barrel,light varmint), .265 neck match standard match chamber. I shot my 60's at 3550 with 33.5g of H335 with a 7 1/2 primer,205's too thin cupped for this load). My bullets have a .2433 shank with a .2436 pressure ring.

    In a 27" barrel, this same load shot 3750 fps. Accuracy is extreme,Gene Harwood set a NBRSA 100 yd record with the 60's at 3700 fps with 335).

    Due to variations in lots of 335, I would start off at 31.5g and work up. In the guns that I have shot, the hotter the load, the more accurate it got...every gun is different.
     
  20. Clark

    Clark

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    Favorite 6mm BR Loads,20 Merged Posts)

    I find that:
    36 gr H335 65 gr Vmax moly will pierce CCI450
    35 gr H335 65 gr Vmax moly will not pierce CCI450
    35 gr H335 65 gr Vmax moly will pierce WSR
    33.5 gr W748 75 gr Vmax moly will not pierce CCI450
    33.5 gr W748 75 gr Vmax moly will not pierce WSR
    33.5 gr W748 65 gr Vmax moly will not pierce WSR
     

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