IMR 4064 quickload help

[Timitus]

Good day to you all. I am loading up Ruger American Predator. I have 4 lbs of IMR 4064 and would like to use it up. While not ideal I did find a good load that puts a 3 shot group into 5/16 of an inch at 2227 fps average muzzle velocity using 26g of IMR 4064. I would like to get up to another 2300-2400 fps with the powder but would like some pressure data if any one can run the info through Quick Load. I am using Hornady 123g eld with and overall loaded coal of 2.270 inchs.

[Zeneffect]

I have run it through quick load for you, the results dont match what you are observing at all so this data looks fancy but is probably near useless

Cartridge : 6.5 Grendel (SAAMI)
Bullet : .264, 123, Hornady ELD-M 26176
Useable Case Capaci: 29.657 grain H2O = 1.926 cm³
Cartridge O.A.L. L6: 2.270 inch = 57.66 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : IMR 4064

Predicted data by increasing and decreasing the given charge,
incremented in steps of 3.0% 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

-30.0 70 18.20 1667 759 17942 3950 76.9 1.876
-27.0 73 18.98 1733 820 19608 4201 79.0 1.804
-24.0 77 19.76 1800 885 21427 4452 81.0 1.735
-21.0 80 20.54 1867 952 23414 4702 82.9 1.669
-18.0 83 21.32 1935 1022 25586 4948 84.8 1.606
-15.0 86 22.10 2003 1096 27960 5191 86.6 1.545
-12.0 89 22.88 2071 1171 30559 5428 88.3 1.487
-09.0 92 23.66 2139 1250 33404 5658 89.9 1.432
-06.0 95 24.44 2208 1331 36525 5879 91.3 1.378
-03.0 98 25.22 2276 1415 39949 6092 92.7 1.324
+00.0 101 26.00 2345 1502 43678 6293 94.0 1.272
+03.0 104 26.78 2414 1591 47748 6482 95.2 1.223 ! Near Maximum !
+06.0 107 27.56 2482 1683 52226 6657 96.2 1.176 !DANGEROUS LOAD-DO NOT USE!
+09.0 110 28.34 2551 1777 57163 6817 97.1 1.131 !DANGEROUS LOAD-DO NOT USE!
+12.0 113 29.12 2620 1874 62616 6961 97.9 1.088 !DANGEROUS LOAD-DO NOT USE!
+15.0 116 29.90 2688 1973 68656 7087 98.6 1.048 !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 101 26.00 2467 1662 51874 6386 98.5 1.183 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 101 26.00 2193 1313 35810 5933 86.3 1.385

[Timitus]

Thank you. This is interesting.

[Zeneffect]

quickload is very hit and miss. i think this time its a solid miss. im updated to latest available as well, so its not a version issue.

if you have the software you can find in the install directory a barrels index and proof house/lab where the data was validated. under 6.5 grendel, there is no proof house/lab listed.

[Timitus]

Even as a miss this info gives me some idea for future load work. Small increases of powder and watching for pressure signs. Thanks again for running it.

[Timitus]

Has anybody worked their own loads up with IMR 4064?

[LRRPF52]

I checked:

6.5 Grendel Reloading Handbooks
Hornady Reloading Manual
Sierra 6.5 Grendel Reloading Data
Nosler Reloading online
Barnes 6.5 Grendel reloading Data

I could not find any published data for IMR 4064. Burn rate shows it within range of common 6.5 Grendel powders. The problem you run into with it is that it’s a long extruded powder that has a hard time metering and fitting into small cases.



It might be worth exploring in 6.5 Grendel though since it’s slower-burning that 8208XBR, very close to AA2520.

You might not be able to get enough in the case to produce velocities you’re looking for though.

That Quick Load data will be meaningless since QL never tested IMR 4064 in a pressure test breach, so it’s entirely theoretical with zero real world data points to reference.

[Harpoon1]

Has anybody worked their own loads up with IMR 4064?

Looking for speed in the Grendel with it’s low case volume and extruded powders is futile, especially with the “heavier for class” projectiles. If you want speed for that weight range, IMO CFE 223 or Leverevelution is the way to go. I find Lever superior to CFE 223! YMMV.

[Timitus]

I will keep leverevelution in mind.

[Mark611]

IMR4064 is to slow, that powder is to dense for the 6.5GRR case, so is H4895, Varget, A2495, other powders I have tried do not produce enough velocity due to case volume or burn rate are A2520, Shooters World Match Rifle same as 2520, A2460, H322, none of the powders will break 2400fps accept SWMR, but it has pressure signs @29.1gns with 120gn ELDM from my 18'' 1&8 barrel, 29gns SWMR no pressure signs but aved 2385fps, the best powder I have found for my 18'' and 24'' 1&8 barrels is AR Comp, both of my AR rifles are very accurate with this powder using the 120gn SMK's, I'm running 27.1gns of this powder and the 120 SMK's, my 18'' aves 2495fps my 24'' aves 2545fps, ES is 21fps the SD 7. and change for both barrels and accurate, the 18'' 1.25'' in a 20mph wind @200 +yds the 24'' 7/8'' same distance! can't ask for more than that from an AR platform, JMO

[DIANEB]

I will keep leverevelution in mind.

I've had very good luck with leverevolution sns the 123gr SMK's...30.0 and 30.5 grains...

[Timitus]

Thanks. I do have a lb of that powder. I have used that in my 30-30.

[Harpoon1]

Thanks. I do have a lb of that powder. I have used that in my 30-30.

http://www.65grendel.com/forum/showthrea...revolution

[Timitus]

That is some good info Harpoon1. Thanks

[Constitutionalist]

Just a thought but maybe you should consider a trade for something more Grendel-friendly. I'm in SE MI and I'd trade you a couple pounds of LVR or H335 for some 4064. I use it in.308 and .30-06 Not sure where you are but there might be someone near you that you could work something out with.


John