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Topic: Shooting and Loading the Hornady 6.5 Creedmoor (Read 33684 times) previous topic - next topic

Shooting and Loading the Hornady 6.5 Creedmoor

Good article from NRA's American Rifleman magazine.

Re: Shooting and Loading the Hornady 6.5 Creedmoor

Reply #1
Here is some loads Ran through Quick load. It was taken from different forum
Cartridge : 6.5 Creedmoor Hornady
Bullet : .264, 120, Nosler BalTip 26120
Useable Case Capaci: 48.970 grain H2O = 3.180 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length : 26.0 inch = 660.4 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 61000 psi, or 420 MPa
or a maximum loading ratio or filling of 111 %
These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !

131 loads produced a Loading Ratio below user-defined minimum of 90%. These powders have been skipped.
Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
Norma MRP 109.2 51.4 3.33 3209 99.2 61000 10613 1.156 ! Near Maximum !
Vihtavuori N560 110.8 51.1 3.31 3185 96.3 61000 10689 1.156 ! Near Maximum !
Accurate MAGPRO 111.0 53.3 3.45 3168 94.7 60750 10667 1.163 ! Near Maximum !
Raufoss RA15 111.0 50.7 3.28 3165 98.1 60647 10360 1.163 ! Near Maximum !
Bofors RP5/NP ~approximation 111.0 50.7 3.28 3165 98.1 60647 10360 1.163 ! Near Maximum !
Alliant Reloder-22 111.0 50.7 3.28 3165 98.1 60647 10360 1.163 ! Near Maximum !
IMR 7828 SSC 108.8 50.5 3.27 3155 96.6 61000 10296 1.153 ! Near Maximum !
ADI AR 2213 109.6 50.0 3.24 3136 96.4 61000 10189 1.154 ! Near Maximum !
Somchem S365 105.2 47.2 3.06 3131 100.0 61000 8976 1.171 ! Near Maximum !
Ramshot Hunter 102.8 47.9 3.11 3123 99.6 61000 9639 1.169 ! Near Maximum !
Alliant Reloder-19 107.3 48.5 3.14 3118 97.9 61000 9847 1.164 ! Near Maximum !
Hodgdon H414 97.1 46.3 3.00 3116 99.1 61000 9631 1.172 ! Near Maximum !
Winchester 760 97.1 46.3 3.00 3116 99.1 61000 9631 1.172 ! Near Maximum !
Alliant Reloder-17 94.6 44.8 2.90 3116 100.0 61000 9107 1.159 ! Near Maximum !
ADI AR 2209 106.5 47.8 3.10 3113 97.8 61000 9762 1.159 ! Near Maximum !
Bofors RP14 ~approximation 108.1 48.8 3.16 3110 97.9 61000 9770 1.165 ! Near Maximum !
Norma URP 102.3 45.7 2.96 3104 100.0 61000 9260 1.176 ! Near Maximum !
Bofors RP19 ~approximation 102.4 45.7 2.96 3104 100.0 61000 9257 1.176 ! Near Maximum !
Vihtavuori N550 99.4 45.8 2.97 3104 100.0 61000 9382 1.181 ! Near Maximum !
Ramshot Magnum (Big Boy) 111.0 53.6 3.48 3102 96.2 57381 10344 1.184 ! Near Maximum !
Accurate 4350 106.3 45.9 2.97 3101 100.0 61000 9231 1.191 ! Near Maximum !
SNPE Vectan SP 12 111.0 53.5 3.47 3092 96.2 56796 10303 1.190 ! Near Maximum !
Bofors RP4 ~approximation 105.0 47.4 3.07 3089 97.7 61000 9564 1.167 ! Near Maximum !
Norma 204 101.7 47.4 3.07 3089 97.7 61000 9564 1.167 ! Near Maximum !
Raufoss RA4 105.0 47.4 3.07 3089 97.7 61000 9564 1.167 ! Near Maximum !
PB Clermont PCL 517 111.0 53.5 3.47 3086 96.0 56473 10301 1.193 ! Near Maximum !
Rottweil R905 111.0 49.7 3.22 3086 95.7 58627 9897 1.185 ! Near Maximum !
IMR 4831 107.4 46.4 3.01 3085 100.0 61000 9052 1.185 ! Near Maximum !
Ramshot BigGame 95.4 44.5 2.88 3083 100.0 61000 8913 1.177 ! Near Maximum !
SNPE Vectan SP 11 95.6 44.5 2.89 3081 100.0 61000 8900 1.177 ! Near Maximum !
Somchem S385 107.6 49.1 3.18 3080 98.7 61000 9433 1.184 ! Near Maximum !
Hodgdon H4831 SC 108.2 49.4 3.20 3076 95.7 61000 9580 1.165 ! Near Maximum !
Winchester WXR 111.0 49.6 3.21 3073 97.0 55034 10149 1.215 ! Near Maximum !
IMR 4895 92.1 41.6 2.69 3070 100.0 61000 8821 1.185 ! Near Maximum !
Bofors RP4 NT ~approximation 102.5 47.0 3.04 3068 98.9 61000 9272 1.180 ! Near Maximum !
Hodgdon Hybrid 100V 108.8 45.9 2.97 3063 100.0 61000 8501 1.175 ! Near Maximum !
Bofors RP11 ~approximation 92.9 41.9 2.72 3061 100.0 61000 8792 1.185 ! Near Maximum !
Alliant Reloder-15 92.9 41.9 2.72 3061 100.0 61000 8792 1.185 ! Near Maximum !
Raufoss RA11 92.9 41.9 2.72 3061 100.0 61000 8792 1.185 ! Near Maximum !
Winchester Supreme 780 105.5 50.2 3.25 3061 97.7 61000 9305 1.170 ! Near Maximum !
Norma 203B 93.4 42.1 2.73 3058 100.0 61000 8720 1.187 ! Near Maximum !
Hodgdon H380 94.2 43.5 2.82 3053 99.9 61000 8919 1.189 ! Near Maximum !
Lovex S070 101.6 45.4 2.94 3052 99.2 61000 9129 1.190 ! Near Maximum !
Rottweil R904 105.6 47.0 3.04 3049 96.6 61000 9265 1.173 ! Near Maximum !
Norma 203 old 94.8 43.2 2.80 3049 100.0 61000 8585 1.199 ! Near Maximum !
Hodgdon H4350 104.3 46.1 2.99 3048 98.6 61000 9066 1.176 ! Near Maximum !
IMR 4350 102.4 46.0 2.98 3047 98.7 61000 9052 1.176 ! Near Maximum !
PB Clermont PCL 516 90.9 43.7 2.83 3044 99.9 61000 8812 1.181 ! Near Maximum !
Rottweil R903 96.9 43.3 2.80 3043 100.0 61000 8508 1.199 ! Near Maximum !
IMR 4320 94.9 42.1 2.73 3042 100.0 61000 8469 1.172 ! Near Maximum !
Bofors RP7 NT ~approximation 96.1 43.8 2.84 3041 99.3 61000 8839 1.165 ! Near Maximum !
Somchem S355 96.9 42.8 2.77 3037 100.0 61000 8521 1.194 ! Near Maximum !
SNPE Vectan SP 9 90.7 42.3 2.74 3033 100.0 61000 8502 1.183 ! Near Maximum !
Hodgdon H4831 111.0 48.7 3.16 3029 95.1 57977 9458 1.191 ! Near Maximum !
ADI AP 2214 111.0 52.0 3.37 3029 95.2 56074 9820 1.200 ! Near Maximum !
Lovex S065 100.3 44.3 2.87 3029 99.7 61000 8809 1.192 ! Near Maximum !
IMR 7828 111.0 48.7 3.16 3028 94.8 53442 9969 1.223
Rottweil R907 99.0 43.9 2.84 3025 98.6 61000 8939 1.187 ! Near Maximum !
IMR 4007 SSC 95.9 43.9 2.85 3024 98.6 61000 8932 1.188 ! Near Maximum !
Hodgdon VARGET 95.6 41.8 2.71 3022 100.0 61000 8487 1.178 ! Near Maximum !
ADI AR 2208 95.3 41.8 2.71 3022 100.0 61000 8487 1.178 ! Near Maximum !
Bofors RP5 NT ~approximation 111.0 51.1 3.31 3022 92.9 56852 9734 1.199 ! Near Maximum !
Bofors RP3 NT ~approximation 97.8 43.9 2.84 3019 99.7 61000 8628 1.177 ! Near Maximum !
IMR 3031 92.4 39.0 2.53 3014 100.0 61000 7876 1.191 ! Near Maximum !
IMR 4064 96.2 41.0 2.66 3013 100.0 61000 8312 1.183 ! Near Maximum !
Somchem S361 104.3 50.2 3.25 3011 95.7 61000 9038 1.186 ! Near Maximum !
Lovex S062 93.9 41.2 2.67 3010 100.0 61000 8180 1.196 ! Near Maximum !
Alliant Reloder-25 111.0 49.8 3.23 3008 99.0 49584 9999 1.264
Accurate 4064 98.8 41.7 2.70 3007 100.0 61000 8039 1.221 ! Near Maximum !
Vihtavuori N165 111.0 49.6 3.21 3000 97.7 56894 9052 1.210 ! Near Maximum !
Vihtavuori N150 102.1 43.5 2.82 2992 100.0 61000 8011 1.194 ! Near Maximum !
Vihtavuori N540 92.6 42.3 2.74 2991 100.0 61000 8028 1.194 ! Near Maximum !
Rottweil R902 92.8 40.4 2.62 2990 100.0 61000 8040 1.201 ! Near Maximum !
Norma 202 90.4 40.1 2.60 2988 100.0 61000 7877 1.195 ! Near Maximum !
Vihtavuori N160 111.0 48.0 3.11 2984 95.9 57920 8963 1.203 ! Near Maximum !
Accurate 2495 91.9 39.2 2.54 2978 100.0 61000 7735 1.228 ! Near Maximum !
Lovex S060 90.5 39.8 2.58 2972 100.0 61000 7946 1.183 ! Near Maximum !
Accurate 2700 96.9 45.2 2.93 2970 98.4 61000 8405 1.193 ! Near Maximum !
Vihtavuori N140 92.4 40.9 2.65 2959 100.0 61000 7576 1.195 ! Near Maximum !
Vihtavuori N135 98.3 40.2 2.61 2950 100.0 61000 7385 1.205 ! Near Maximum !
Somchem S335 90.5 40.0 2.59 2916 100.0 61000 7293 1.206 ! Near Maximum !
Norma MRP 2 111.0 50.1 3.25 2901 93.1 44532 9985 1.334
Vihtavuori N133 92.2 38.1 2.47 2891 100.0 61000 6939 1.199 ! Near Maximum !
Accurate 3100 111.0 47.4 3.07 2888 98.1 48970 8917 1.316
Vihtavuori N570 111.0 52.8 3.42 2869 85.2 43683 10297 1.345
Hodgdon H1000 111.0 49.6 3.21 2840 92.0 46150 9266 1.312
Hodgdon Retumbo 111.0 50.4 3.26 2772 93.5 39598 9758 1.406
Lovex D100 111.0 53.9 3.49 2734 80.3 46271 8392 1.333
Vihtavuori 24N41 111.0 53.4 3.46 2691 76.4 42906 8600 1.373
ADI AR 2218 111.0 53.4 3.46 2685 78.6 40304 9470 1.407
Vihtavuori N170 111.0 49.6 3.21 2683 83.3 40912 8489 1.415
Hodgdon H870 111.0 51.7 3.35 2622 82.1 34720 9217 1.498
Alliant Reloder-50 111.0 54.2 3.51 2549 77.0 31475 9176 1.563
Hodgdon 50BMG 111.0 50.9 3.30 2493 67.7 34500 7819 1.516
Hodgdon US 869 111.0 53.4 3.46 2489 71.5 34248 7881 1.523
SNPE Vectan SP 13 111.0 51.2 3.32 2435 75.8 30721 7848 1.587
PB Clermont PCL 513/520/9520 111.0 51.2 3.32 2366 72.1 29032 7510 1.627
Vihtavuori 20N29 111.0 53.9 3.49 2359 69.7 29176 7597 1.627
Accurate 8700 111.0 51.3 3.32 2327 71.2 28750 7320 1.636
NC A3502 ,test only 111.0 49.0 3.18 2182 49.0 28499 5428 1.666
TLP A 502(RH) ,test only 111.0 49.0 3.18 2159 53.2 26371 5816 1.711
Vihtavuori N32C Tin Star 97.7 22.0 1.43 2157 100.0 61000 3302 1.340 ! Near Maximum !
IMR TrailBoss 111.0 16.9 1.09 1880 100.0 40521 2639 1.593
ADI AS 25 BP 111.0 16.9 1.09 1880 100.0 40521 2639 1.593
V1734 7-multiperf ,test only 111.0 49.0 3.18 1549 24.0 15080 2636 2.260

Re: Shooting and Loading the Hornady 6.5 Creedmoor

Reply #2
Courtesy of a member of this forum
Case capacity and propellant properties may vary considerably from lot to lot!

**** Input data:                         Date: 16-Apr-2013     Time: 16:45:02
Cartridge................. = 6.5 Creedmoor Hornady
Projectile type........... = .264, 120, Hornady GMX 26110 with boattail

Max.avg.pressure(Piezo    )= 60191 psi   Shot start / init pressure = 3626 psi
Projectile weight      (gr)= 120         Groove caliber         (in)= 0.264
Length of cartridge    (in)= 2.670       Length of case         (in)= 1.920
Case capacity(Grains Water)= 52.80       Length of projectile   (in)= 1.300
Length of barrel       (in)= 28.000
**** Values calculated:
Seating depth          (in)= 0.550       Volume displaced   (gn H2O)= 7.41
Comb.chamber volume(gn H2O)= 45.39       Projectile travel      (in)= 26.630
**** Input data:
Propellant type........... = Vihtavuori N135
Charge weight..........(gr)= 37.8        Load density......(g/cu.cm)= 0.831
Heat of Explosion  (cal/lb)= 388942      Ratio of spec. heats cp/cv = 1.240
Solid density    (gr/cu.in)= 397.0       Weighting factor...........= 0.5
Burning rate factor Ba(1/s)= 0.575       Pro-/degressivity factor a = 1.830
Burning limit ......... z1 = 0.5         Combust.Chamber Vb(ft³)= 1.040738E-4
Factor.................. b = 1.963       X-S.Area of Bore A(ft²)= 3.723358E-4
Bulk density     (gr/cu.in)= 210.9       Projectile mass mp (lb)= 1.714286E-2
Loading ratio           (%)= 99.6        Projectile travel x(ft)= 2.219167E+0

**** Results calculated:
Maximum pressure ........ = 58671 psi    Way of projectile at Pmax = 1.85 in
Muzzle velocity  ......Ve = 2930 fps     Muzzle pressure .......Pe = 6315 psi
Project. energy at muzzle = 2287 ft.lbs  Fraction of powder burnt  = 100  %
Projectile travel time from 10% Pmax to muzzle = 1.28 ms

Re: Shooting and Loading the Hornady 6.5 Creedmoor

Reply #3
Courtesy of a member of this forum

**** Input data:                         Date: 16-Apr-2013     Time: 16:42:16
Cartridge................. = 6.5 Creedmoor Hornady
Projectile type........... = .264, 100, Hornady SP 2610 with flatbase

Max.avg.pressure(Piezo    )= 60191 psi   Shot start / init pressure = 3626 psi
Projectile weight      (gr)= 100         Groove caliber         (in)= 0.264
Length of cartridge    (in)= 2.655       Length of case         (in)= 1.920
Case capacity(Grains Water)= 52.80       Length of projectile   (in)= 0.982
Length of barrel       (in)= 28.000
**** Values calculated:
Seating depth          (in)= 0.247       Volume displaced   (gn H2O)= 3.42
Comb.chamber volume(gn H2O)= 49.38       Projectile travel      (in)= 26.327
**** Input data:
Propellant type........... = Vihtavuori N135
Charge weight..........(gr)= 40.0        Load density......(g/cu.cm)= 0.808
Heat of Explosion  (cal/lb)= 388942      Ratio of spec. heats cp/cv = 1.240
Solid density    (gr/cu.in)= 397.0       Weighting factor...........= 0.5
Burning rate factor Ba(1/s)= 0.575       Pro-/degressivity factor a = 1.830
Burning limit ......... z1 = 0.5         Combust.Chamber Vb(ft³)= 1.132086E-4
Factor.................. b = 1.963       X-S.Area of Bore A(ft²)= 3.723358E-4
Bulk density     (gr/cu.in)= 210.9       Projectile mass mp (lb)= 1.428571E-2
Loading ratio           (%)= 96.9        Projectile travel x(ft)= 2.193898E+0

**** Results calculated:
Maximum pressure ........ = 51291 psi    Way of projectile at Pmax = 2.17 in
Muzzle velocity  ......Ve = 3133 fps     Muzzle pressure .......Pe = 6769 psi
Project. energy at muzzle = 2179 ft.lbs  Fraction of powder burnt  = 100  %
Projectile travel time from 10% Pmax to muzzle = 1.25 ms

Real maximum of pressure inside barrel.
End of combustion before the projectile passes muzzle.

Re: Shooting and Loading the Hornady 6.5 Creedmoor

Reply #4
One more

Case capacity and propellant properties may vary considerably from lot to lot!

**** Input data:                         Date: 13-Apr-2013     Time: 19:03:38
Cartridge................. = 6.5 Creedmoor Hornady
Projectile type........... = .264, 140, Hornady A-MAX 26332 with boattail

Max.avg.pressure(Piezo    )= 60191 psi   Shot start / init pressure = 3626 psi
Projectile weight      (gr)= 140         Groove caliber         (in)= 0.264
Length of cartridge    (in)= 2.810       Length of case         (in)= 1.920
Case capacity(Grains Water)= 50.50       Length of projectile   (in)= 1.375
Length of barrel       (in)= 28.000
**** Values calculated:
Seating depth          (in)= 0.485       Volume displaced   (gn H2O)= 6.26
Comb.chamber volume(gn H2O)= 44.24       Projectile travel      (in)= 26.565
**** Input data:
Propellant type........... = Vihtavuori N160
Charge weight..........(gr)= 42.5        Load density......(g/cu.cm)= 0.959
Heat of Explosion  (cal/lb)= 392193      Ratio of spec. heats cp/cv = 1.242
Solid density    (gr/cu.in)= 402.1       Weighting factor...........= 0.5
Burning rate factor Ba(1/s)= 0.466       Pro-/degressivity factor a = 0.352
Burning limit ......... z1 = 0.5         Combust.Chamber Vb(ft³)= 1.01432E-4
Factor.................. b = 1.451       X-S.Area of Bore A(ft²)= 3.723386E-4
Bulk density     (gr/cu.in)= 223.0       Projectile mass mp (lb)= 1.999966E-2
Loading ratio           (%)= 108.7       Projectile travel x(ft)= 2.213747E+0

**** Results calculated:
Maximum pressure ........ = 54693 psi    Way of projectile at Pmax = 1.59 in
Muzzle velocity  ......Ve = 2729 fps     Muzzle pressure .......Pe = 7503 psi
Project. energy at muzzle = 2315 ft.lbs  Fraction of powder burnt  = 96.7  %
Projectile travel time from 10% Pmax to muzzle = 1.38 ms

WARNING: Near Maximum Average Pressure - tolerances can cause dangerous pressures !
Real maximum of pressure inside barrel.
End of combustion after the projectile passes muzzle.

Re: Shooting and Loading the Hornady 6.5 Creedmoor

Reply #5
Some more data that I got from other forum
6.5 Creedmoor load over 139 Lapua

6.5 base line.........2772, 2772

Varget:
38.....2478
38.5.....2496, 2506, 2515
39.....2539
39.5.....2583
40.....2614
40.5.....2688
41.....2693
Notes: No signs of any pressure.

CFE223:
44.....2754
44.5.....2749
45.....2818, 2766, 2789
45.5.....2836
Notes: All primers were flat, but no other signs of pressure presented. Bolt lift very easy, no signs of e-swipe.

IMR8208XBR:
39.....2693
39.5.....2732
40.....2726
40.5.....2760
41.....2789 BLOWN PRIMER!!! Stopped.

H414:
41.....2442
41.5.....2455
42.....2501
42.5.....2534
42.9.....2564
Notes: No pressure seen.

H4350:
42.1.....2534
42.6.....2594, 2588, 2578
43.1.....2624
43.6.....2661
Notes: No pressure seen.



2/22/13 Follow up, 55 degrees.

6.5 CM base line......2801, 2795, 2801, 2795, 2801 (that seems about right for this load)

H4350: (decided to continue up to see where pressure is seen)
44.....2745
44.5.....2766
45.....2772
45.5.....2783
Notes: No pressure seen. 45, and 45.5 were compressed loads. Also the same two were through the same hole.

Power Pro 2000 MR (Federal 308 cases used)
42......wouldn't chamber
42.5.....2795
43.....wouldn't chamber
43.5.....2818
44......2855 (slightest of e-swipe)
Notes: Going to reshoot with Hornady brass.

CFE223 (reshoot higher to see where pressure is starting)
45.....2842, 2812, 2801 (.25" group!!)
46.....2873
46.5.....2911 (flat primer)
47.....2936 (Heavy bolt, stopped!!!)
Notes: Happy with group size, and velocity. I don't know what to think about the extreme spread.

AR Comp: (Federal cases)
37.....2619
38.....2715
38.5.....2710 (Heavy bolt lift, Stopped)

Varget (reshoot higher to see where pressure is starting)
40.6.....2789 (Federal brass)
40.8.....2743 (Federal brass)
41.5.....2780 (back to Hornady)
42.....2766
42.5.....2777
Notes: No pressure seen. Interesting that the Federal brass had higher velocity with lower charge.

Re: Shooting and Loading the Hornady 6.5 Creedmoor

Reply #6
I AM VERY IMPRESSED WITH THE INFO IN THIS POST.
IVE BEEN RELOADING WITH SUCCESS ( I THOUGHT) FOR A PRETTY LONG TIME BUT THIS IS THE MOST TECHNICAL INFORMATION I HAVE SEEN. WOW!! IT REALLY TELLS YOU EVERYTHING I WOULD HAVE NEVER THOUGHT OF. ITS REALLY OVER MY HEAD BUT I STILL ENJOYED THE READ AND DETAIL INFORMATION
"kill em all"

Re: Shooting and Loading the Hornady 6.5 Creedmoor

Reply #7
Any idea what barrel length that H4350 info came from as those velocities are very low. With 43.5grns in my 26.5" barrel I am getting 2930fps with my 140 AMAXs.

Re: Shooting and Loading the Hornady 6.5 Creedmoor

Reply #8
i wish i could get that with mine i run 42,7 behind 140 vld and can only get 2785 with a 28 " bartlein1:8 5r
"kill em all"

Re: Shooting and Loading the Hornady 6.5 Creedmoor

Reply #9

Any idea what barrel length that H4350 info came from as those velocities are very low. With 43.5grns in my 26.5" barrel I am getting 2930fps with my 140 AMAXs.

Maybe your bullet goes into  the lands and there is initial pressure buildup

Re: Shooting and Loading the Hornady 6.5 Creedmoor

Reply #10
It doesn't. It's loaded well out of the lands. The velocities below are very low for the Creedmoor and H4350 and that's why I was wondering. It's either a very short barrel or a short semi.

H4350:
42.1.....2534
42.6.....2594, 2588, 2578
43.1.....2624
43.6.....2661
Notes: No pressure seen.

Re: Shooting and Loading the Hornady 6.5 Creedmoor

Reply #11
I agree with Rob. Those velocities are way off. Maybe they are for a 14" Creedmoor handgun.

Re: Shooting and Loading the Hornady 6.5 Creedmoor

Reply #12
Great info!
Thanks

Any more on the Alliant PP 2000-MR loads?
I have several pounds and would like to work up some loads.

Anyone with quickload data?


Re: Shooting and Loading the Hornady 6.5 Creedmoor

Reply #13
robo1.
please help me figure this thing out if we can. as you have seen my load works. but for the life of me I cant figure out what our diffrences are.
heres my complete breakdown for you to go off of.
1-necksize brass
2chambfer with a 22 degree tool
3-uniformed primer pockets
4CAREFULLY AND METICULOUSLY load 42.7 gr of h-4350 check accuracy on a certified 10-10 scale also
5 seat 140 gr vld using redding competition die with vld stem
take the time before a match to weight sort all brass ,bullets and even fed 210match primers. neck tension is 3-4 thousanths and seating depth is .020 off the lands using a hornady .264 caliber insert measuring off the ogive.
I typically shoot at 350ft above sealevel with 73%(this morning) to 90% humidity.
I have a 28" bartlein 5r-1"8 twist barrel and get ONLY 2785 FPS with an es of 12 fps
I wish I new how your getting so much faster than me.
everybody look at my info and tell me whats causing the difference.
"kill em all"

Re: Shooting and Loading the Hornady 6.5 Creedmoor

Reply #14
Honestly it probably boils down to three things as the brass, primers and although the bullets aren't the same they should be close enough. Slower barrel, chamber dimensions and different lot of powder. Slower barrels happen. Just one of those things.

Chamber reamers aren't all the same either. A new reamer will be slightly larger than one that has been sharpened over the years. The reamer GAP used in my set back barrel above was the original reamer they used when building those first Creedmoor rifles of ours 5 years ago. Over that time it's been sharpened and does get minimally smaller in doing so. I actually gained about 60-80fps, depending on load and lot of ammo, over my 28" barrel when I had it set back. The chamber is the only thing that changed besides the barrel being 1.5" shorter.

And of course lots of powder will be slightly different. Any one or a small combination of all of them might be doing it.