26" Bartlein bbl 8"twist >Hearing we should try slower powders than H4350 behind 105-115 bullets . Any experience with Re#26 ?
Re#26 in a 6mm Creedmoor
- Thread starter Iron Worker
- Start date
I am using it in my mid range F/O rifle with very good results and no pressure signs.
43.5 gr RL-26
Lapua Brass
BR4's
Berger 105 HB
COAL 2,805
Barrel is a Bartlein 32" 5R 7.5:1
Freebore is .185 and would significantly reduce the starting load with a shorter freebore. Had good results testing H1000 but the RL-26 was working so well stopped load development with it.
43.5 gr RL-26
Lapua Brass
BR4's
Berger 105 HB
COAL 2,805
Barrel is a Bartlein 32" 5R 7.5:1
Freebore is .185 and would significantly reduce the starting load with a shorter freebore. Had good results testing H1000 but the RL-26 was working so well stopped load development with it.
Cool. I have a 6mm barrel here and a 6 creedmoor reamer. I have the hopes that h1000 will put me at 3100fps and get me 2000 rounds out of a barrel. I guess time will tell.
Before you start cutting make sure you have an estimate on speed in relation to barrel length. I started a new project with heard all these great speeds, then when I started shooting i was disappointed cause I was 200fps off of projected....then I ask "what barrel length" the response almost floored me. "Oh that's in my 30" barrel". I mean who in the hell realistically shoots a 30" barrel except in an f-class gun that just sits in a front rest on a bench.
Best I could get with my 6creed with a 24" bartlein was 3086. And I'd occasionally pierce primers so it was a tad on the warm side. No primer issues put me back at 2980.
I couldn't shove enough H1000 to get anywhere enough speed.
Ymmv
Sent from my iPhone using Tapatalk
Best I could get with my 6creed with a 24" bartlein was 3086. And I'd occasionally pierce primers so it was a tad on the warm side. No primer issues put me back at 2980.
I couldn't shove enough H1000 to get anywhere enough speed.
Ymmv
Sent from my iPhone using Tapatalk
I'll be running 26". Based on your results I should be pretty close to my desired mv. Maybe slightly less which I'm okay with.
Don't have info on the 6 Creed, but I use RL26 in my 6.5 Creed
I listed info on the 6x47 Lapua with the RL26 just to give you an Idea.
The RL26 used here is based on speeds I get with my 6.5 Creed 26" with lot # 08014Y050115
Cartridge : 6 x 47 - Lapua - 6mm HOT
Bullet : .243, 105, JLK VLD 24105
Useable Case Capaci: 43.981 grain H2O = 2.856 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Alliant Reloder-26 lot # 08014Y050115
Predicted data by increasing and decreasing the given charge,
incremented in steps of 0.393% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !
Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms
-03.9 98 42.56 3051 2170 50112 10320 100.0 1.285
-03.5 98 42.73 3064 2188 50855 10333 100.0 1.276
-03.1 98 42.91 3077 2207 51609 10346 100.0 1.268
-02.7 99 43.08 3090 2225 52377 10359 100.0 1.260
-02.4 99 43.26 3102 2244 53158 10371 100.0 1.251
-02.0 100 43.43 3115 2263 53952 10384 100.0 1.243 ! Near Maximum !
-01.6 100 43.60 3128 2281 54759 10396 100.0 1.235 ! Near Maximum !
-01.2 100 43.78 3141 2300 55582 10408 100.0 1.227 ! Near Maximum !
-00.8 101 43.95 3153 2318 56418 10421 100.0 1.219 ! Near Maximum !
-00.4 101 44.13 3166 2337 57269 10432 100.0 1.211 ! Near Maximum !
+00.0 102 44.30 3179 2356 58134 10444 100.0 1.203 ! Near Maximum !
+00.4 102 44.47 3191 2375 59014 10456 100.0 1.195 ! Near Maximum !
+00.8 102 44.65 3204 2394 59913 10467 100.0 1.188 ! Near Maximum !
+01.2 103 44.82 3217 2412 60822 10478 100.0 1.180 ! Near Maximum !
+01.6 103 45.00 3229 2431 61753 10490 100.0 1.172 ! Near Maximum !
+02.0 104 45.17 3242 2450 62698 10501 100.0 1.165 !DANGEROUS LOAD-DO NOT USE!
Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba 102 44.30 3315 2563 73867 9961 100.0 1.102 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 102 44.30 2965 2050 45104 10833 98.0 1.339
With the RL26 burn rate that came with QL.
Cartridge : 6 x 47 - Lapua - 6mm HOT
Bullet : .243, 105, JLK VLD 24105
Useable Case Capaci: 43.981 grain H2O = 2.856 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Alliant Reloder-26
Predicted data by increasing and decreasing the given charge,
incremented in steps of 0.382% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !
Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms
-03.8 101 43.86 3060 2183 49960 10678 99.8 1.281
-03.4 101 44.03 3073 2202 50695 10696 99.9 1.273
-03.1 101 44.21 3087 2221 51444 10713 99.9 1.265
-02.7 102 44.38 3100 2240 52205 10729 99.9 1.256
-02.3 102 44.56 3113 2260 52980 10744 100.0 1.248
-01.9 103 44.73 3127 2279 53768 10757 100.0 1.240 ! Near Maximum !
-01.5 103 44.90 3140 2299 54570 10770 100.0 1.232 ! Near Maximum !
-01.1 103 45.08 3153 2318 55385 10781 100.0 1.223 ! Near Maximum !
-00.8 104 45.25 3166 2338 56216 10791 100.0 1.215 ! Near Maximum !
-00.4 104 45.43 3180 2357 57060 10800 100.0 1.207 ! Near Maximum !
+00.0 105 45.60 3193 2377 57921 10810 100.0 1.199 ! Near Maximum !
+00.4 105 45.77 3206 2396 58796 10819 100.0 1.191 ! Near Maximum !
+00.8 105 45.95 3219 2416 59687 10828 100.0 1.183 ! Near Maximum !
+01.1 106 46.12 3232 2436 60594 10837 100.0 1.176 ! Near Maximum !
+01.5 106 46.30 3245 2455 61518 10846 100.0 1.168 ! Near Maximum !
+01.9 107 46.47 3258 2475 62459 10854 100.0 1.160 !DANGEROUS LOAD-DO NOT USE!
Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba 105 45.60 3344 2608 73830 10269 100.0 1.095 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 105 45.60 2958 2041 45157 11009 96.4 1.337
May give you an Idea how it reacts with 6 mm in small cases about the size of Creed.
243 shows good results with RL26 as well.
I listed info on the 6x47 Lapua with the RL26 just to give you an Idea.
The RL26 used here is based on speeds I get with my 6.5 Creed 26" with lot # 08014Y050115
Cartridge : 6 x 47 - Lapua - 6mm HOT
Bullet : .243, 105, JLK VLD 24105
Useable Case Capaci: 43.981 grain H2O = 2.856 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Alliant Reloder-26 lot # 08014Y050115
Predicted data by increasing and decreasing the given charge,
incremented in steps of 0.393% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !
Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms
-03.9 98 42.56 3051 2170 50112 10320 100.0 1.285
-03.5 98 42.73 3064 2188 50855 10333 100.0 1.276
-03.1 98 42.91 3077 2207 51609 10346 100.0 1.268
-02.7 99 43.08 3090 2225 52377 10359 100.0 1.260
-02.4 99 43.26 3102 2244 53158 10371 100.0 1.251
-02.0 100 43.43 3115 2263 53952 10384 100.0 1.243 ! Near Maximum !
-01.6 100 43.60 3128 2281 54759 10396 100.0 1.235 ! Near Maximum !
-01.2 100 43.78 3141 2300 55582 10408 100.0 1.227 ! Near Maximum !
-00.8 101 43.95 3153 2318 56418 10421 100.0 1.219 ! Near Maximum !
-00.4 101 44.13 3166 2337 57269 10432 100.0 1.211 ! Near Maximum !
+00.0 102 44.30 3179 2356 58134 10444 100.0 1.203 ! Near Maximum !
+00.4 102 44.47 3191 2375 59014 10456 100.0 1.195 ! Near Maximum !
+00.8 102 44.65 3204 2394 59913 10467 100.0 1.188 ! Near Maximum !
+01.2 103 44.82 3217 2412 60822 10478 100.0 1.180 ! Near Maximum !
+01.6 103 45.00 3229 2431 61753 10490 100.0 1.172 ! Near Maximum !
+02.0 104 45.17 3242 2450 62698 10501 100.0 1.165 !DANGEROUS LOAD-DO NOT USE!
Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba 102 44.30 3315 2563 73867 9961 100.0 1.102 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 102 44.30 2965 2050 45104 10833 98.0 1.339
With the RL26 burn rate that came with QL.
Cartridge : 6 x 47 - Lapua - 6mm HOT
Bullet : .243, 105, JLK VLD 24105
Useable Case Capaci: 43.981 grain H2O = 2.856 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Alliant Reloder-26
Predicted data by increasing and decreasing the given charge,
incremented in steps of 0.382% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !
Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms
-03.8 101 43.86 3060 2183 49960 10678 99.8 1.281
-03.4 101 44.03 3073 2202 50695 10696 99.9 1.273
-03.1 101 44.21 3087 2221 51444 10713 99.9 1.265
-02.7 102 44.38 3100 2240 52205 10729 99.9 1.256
-02.3 102 44.56 3113 2260 52980 10744 100.0 1.248
-01.9 103 44.73 3127 2279 53768 10757 100.0 1.240 ! Near Maximum !
-01.5 103 44.90 3140 2299 54570 10770 100.0 1.232 ! Near Maximum !
-01.1 103 45.08 3153 2318 55385 10781 100.0 1.223 ! Near Maximum !
-00.8 104 45.25 3166 2338 56216 10791 100.0 1.215 ! Near Maximum !
-00.4 104 45.43 3180 2357 57060 10800 100.0 1.207 ! Near Maximum !
+00.0 105 45.60 3193 2377 57921 10810 100.0 1.199 ! Near Maximum !
+00.4 105 45.77 3206 2396 58796 10819 100.0 1.191 ! Near Maximum !
+00.8 105 45.95 3219 2416 59687 10828 100.0 1.183 ! Near Maximum !
+01.1 106 46.12 3232 2436 60594 10837 100.0 1.176 ! Near Maximum !
+01.5 106 46.30 3245 2455 61518 10846 100.0 1.168 ! Near Maximum !
+01.9 107 46.47 3258 2475 62459 10854 100.0 1.160 !DANGEROUS LOAD-DO NOT USE!
Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba 105 45.60 3344 2608 73830 10269 100.0 1.095 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 105 45.60 2958 2041 45157 11009 96.4 1.337
May give you an Idea how it reacts with 6 mm in small cases about the size of Creed.
243 shows good results with RL26 as well.
That's a good point and why my 6mm will have a 28" barrel. With the brake it will be 30" and there's no problem getting around PRS matches with that.
I agree to a certain extent. I run a 24" creed and once you add the 7" Ultra it gets to be a pain in the ass. Especially at the Mouse trap at Rifles Only
If I was to run a 28" barrel and then add my 7" Ultra to my AXMC that would be one huge stick to get in & out of. I guess the only very cumbersome positions would be the mouse trap, rat trap, roof tops or other props that you have to shove the barrel through. Barricades, culverts or tower would be fine as no obstructions in the front of the barrel to fidget with.
Cause of this I've thought about dumping my can and adding the extra in barrel length with a good brake.
But it's dam hard to beat the enjoyment of a suppressor.
Sent from my iPhone using Tapatalk
If I was to run a 28" barrel and then add my 7" Ultra to my AXMC that would be one huge stick to get in & out of. I guess the only very cumbersome positions would be the mouse trap, rat trap, roof tops or other props that you have to shove the barrel through. Barricades, culverts or tower would be fine as no obstructions in the front of the barrel to fidget with.
Cause of this I've thought about dumping my can and adding the extra in barrel length with a good brake.
But it's dam hard to beat the enjoyment of a suppressor.
Sent from my iPhone using Tapatalk
I just gave up on the 6Creed-DTAC-H1000 experiment, and am going back to H4350. In a 28" Bart with 47 grains of H1K, 2950 was all I could get and that was a pretty compressed load. It shot pretty well at 100 yards, but my ES and SD numbers were not great at all. I attribute that mainly to not being in the sweet spot of the node. The next node was down around 45 grains and velocity was in the mid 2800s. I'm just not willing to give up that much speed. With 41.5 grains of H4350, I'm smack in the middle of a good node and getting 3035 FPS. That'll work.
I run R26 in my 6 Creed with the 105 Hybrids. I've got the 110 Sierras but have yet to shoot them. It likes around 45 grains with the 105's. Speeds are a little over 3000 in a 25" bbl. I use R26 because I have a lot of it and it's crazy accurate. 45 - 46 grains of 4831SC gives me closer to 3100 fps with good accuracy.
Just started with H1000 46.5 gave me 3040 out of a 24 inch Hawk Hill. That's enough velocity for me now just need to find that node. I had good groups with 46.5 but had the magneto hanging off the end.
Anyone try Retumbo? I am liking the H1000 but the talk about bad carbon build up makes me want to try Retumbo but it looks like it takes a little more of it to match H1000.
I'm thinking the fact that it takes a little more will make it not work for this application. Guys are already having trouble getting enough h1000 in the cases.
H4831SC has been a good powder for 6x47 so it should be the same for 6mmCreed. H1000 wouldn't work well in my 6x47, slow fps and poor SD.
Personally I'd lean towards R16 for 6mmCreed if you want to try the R powders.
Personally I'd lean towards R16 for 6mmCreed if you want to try the R powders.
Actually close to 3000 with that barrel is pretty decent with H1000. Was wondering what twist rate and what bullet ?
Similar threads
