And you're currently not hitting your intended target? I thought it was your precision that was suffering?
6.5 Creed with 120 grain pills and H4350
- Thread starter thatmikeguy
- Start date
And you're currently not hitting your intended target? I thought it was your precision that was suffering?
thatmikeguy
Regular
- Location
- Steinbach, Manitoba
Your "help" has this negative condescending feel to it.
Are you trying to help? Are you trying to be funny?
I can assure you, I'm trying to help.
Help me help you. Do you know the difference between accuracy and precision?
thatmikeguy
Regular
- Location
- Steinbach, Manitoba
I'm trying to shrink my group sizes. I figured that was obvious. I have made new loads to try. If that doesn't work then either I need a new bullet or a new powder. So far only one powder has been suggested. And a few expensive bullets.
My goal here is to make loads that shoot as tight as possible. I thought H4350 was the go to powder for this caliber. Maybe my rifle would prefer another.
My goal here is to make loads that shoot as tight as possible. I thought H4350 was the go to powder for this caliber. Maybe my rifle would prefer another.
So now TOKAY444 will tell you that Precision is what you are talking about. More important than that though I think is to clearly define how it will be used. Tight groups really is not enough information. Tight groups for 100m Benchrest may or may not be usefull at a 1000yds. So I think folks are asking to be specific about your usage. For instance if some one tells me they want a load for competition in PRS(Ironically named I guess) in Eastern Canada then there are distance requirements to be met and then limitations on both bullet weight and velocity for some of the Usable Ranges. Or I want to shoot F Class Open, then this too sets the rules of the game with respect to equipment and precision to be considered enough.
A certain level of precision is relatively easy to achieve, but as we go down the rapid hole in gets exponentially more difficult and expensive.
Without a clear destination we dont know when we have arrived.
thatmikeguy
Regular
- Location
- Steinbach, Manitoba
I target shoot. I shoot for fun. I'm not in any competitive rifle sport. I have 4 kids ages 5 to 9. I don't have a ton of time so my load development tends to be slow. This is my hobby. I shoot when I can. My local range has only 100 yards. I like to shoot farther. I have in the past. I seldom do now. I dont have any place to go unless I drive 30 minutes to crown land. I dont take the time for that very often.
I haven't seen anything helpful from him. Don't forget to dot your i
thatmikeguy
Regular
- Location
- Steinbach, Manitoba
Has anyone here tried Hybrid100V?
No? The first to say try Varget behind the 120s?
Listing the most popular bullet selection for precision shooting in 6.5creed?
Op, as Longbow defined, you're looking for better precision, which is what I thought.
How long is your barrel? I'm sure it was mentioned.
Since you're probably not looking to change to a much slower twist barrel and run flat based light for caliber bullets, as is common in 100 yard group shooting, my recommendation is 40.6-43.0gr of H4350 (which you already have) in .3gr increments and run Berger 140 Hybrids .080" off the lands shooting for 2720-2750 or 2820-2850 fps. You can even try dropping into one of these speed ranges with the 120 ELDMs, but I don't have and personal experience with them.
Don't want to hijack the thread but I had a little incident today with a 120 gr. over 39.5 IMR 4895 as per nosler's web site data in my creedmoor.
I would sure like to know what quickload calculates for pressure with this load.
New rifle, less than 80 rounds down it and has been to published max loads with RL19,17 and H and IMR 4350 120/140loads without incident.
I would sure like to know what quickload calculates for pressure with this load.
New rifle, less than 80 rounds down it and has been to published max loads with RL19,17 and H and IMR 4350 120/140loads without incident.
Code:
Cartridge : 6.5 Creedmoor Hornady
Bullet : .264, 120, Hornady ELD-M 26175
Useable Case Capaci: 47.953 grain H2O = 3.114 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : IMR 4895
Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% 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
-10.0 80 35.55 2672 1902 48902 9626 98.9 1.162
-09.0 81 35.95 2697 1938 50111 9712 99.1 1.150
-08.0 82 36.34 2722 1975 51353 9796 99.3 1.139
-07.0 83 36.74 2747 2011 52628 9877 99.4 1.127
-06.0 84 37.13 2772 2048 53938 9956 99.6 1.116
-05.0 85 37.53 2797 2084 55282 10031 99.7 1.105 ! Near Maximum !
-04.0 86 37.92 2822 2121 56662 10104 99.8 1.094 ! Near Maximum !
-03.0 87 38.32 2846 2159 58079 10174 99.8 1.083 ! Near Maximum !
-02.0 88 38.71 2871 2196 59534 10240 99.9 1.072 ! Near Maximum !
-01.0 88 39.11 2895 2233 61028 10304 100.0 1.061 ! Near Maximum !
[B]+00.0 89 39.50 2919 2271 62562 10365 100.0 1.051 ! Near Maximum ![/B]
+01.0 90 39.90 2944 2309 64137 10422 100.0 1.040 ! Near Maximum !
+02.0 91 40.29 2968 2347 65754 10477 100.0 1.030 !DANGEROUS LOAD-DO NOT USE!
+03.0 92 40.69 2992 2385 67416 10531 100.0 1.020 !DANGEROUS LOAD-DO NOT USE!
+04.0 93 41.08 3016 2423 69122 10584 100.0 1.010 !DANGEROUS LOAD-DO NOT USE!
+05.0 94 41.48 3039 2462 70875 10637 100.0 1.000 !DANGEROUS LOAD-DO NOT USE!
[COLOR=#ff0000][B]Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge[/B][/COLOR]
Data for burning rate increased by 10% relative to nominal value:
+Ba 89 39.50 3016 2423 71793 10009 100.0 1.001 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 89 39.50 2781 2060 53487 10474 97.5 1.113There's some details I'd need for a better prediction on PSI, but this should be close for most jacketed lead core bullets. A monometal would be much higher PSI. Did you chronograph it? Any pressure signs from a lower charge weight?
If you are looking for pure accuracy, try 123gr Lapua Scenar bullets. I've had amazing results in different 6.5 rifles. In the Creedmoor I've used H4350 , Reloder 16 and Reloder 17. My 6.5 Creedmoor Tikka T3X has shot 4 shot groups at the 1/2 inch mark using 129 Interlocks and Scirroco 2s.
Thank you for this Mark,
The bullet used was a speer 120 gr gold dot, starline new case run through the sizing die and federal 210 primer, The rifle has 70-80 rounds down the tube and the bullet was .050 off the lands. I just got back from the range here after firing two rounds with a speer 140 hot cor over 41.2 RL17 and just got stiff bolt lift and plunger marks on the brass. I'm
going to send an email to MD charlton and go pull some bullets.
Looking for the 6.5 CM load data on Alliant web site - RL17 loads data for that caliber do not exist.
So you are in uncharted territory. It mean they do not recommend RL17 for that caliber - due to a varieties of reasons.
Alliant data for the 6.5 CM is with RL16 not RL17.
Before going to 41.2 - did you work up to it ? In my book there is no calculated pressure data that hold to reality.
Powder and bullet manufacturer data IS the only lab tested data that stand on it’s legs.
So you are in uncharted territory. It mean they do not recommend RL17 for that caliber - due to a varieties of reasons.
Alliant data for the 6.5 CM is with RL16 not RL17.
Before going to 41.2 - did you work up to it ? In my book there is no calculated pressure data that hold to reality.
Powder and bullet manufacturer data IS the only lab tested data that stand on it’s legs.
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They may not show it now but the paper with the Alliant Powder logo and Alliant 6.5 creedmoor loads I printed off some time ago shows a 140gr speer spitzer @ 2.760 Coal , CCI 200 in a hornady case @ 41.8 and 2765 fps.
Did I work up to it, yes from 40.0 in .4gr increments and just shot the 40.8 grs yesterday with no pressure signs at all. 41.2 got me some bright double plunger marks and a stiff bolt handle. Is it my first rodeo? no
No, own two of them, just been in a rush with work/daylight hours available to shoot. I'll be bringing it the next time.
My 20 " Ultra light 6.5 CM loves 43.5 grs RL17 with a CCI BR primer under Barnes 120 TTSX ers ! No pressure problems at All with this load . RJ
