225gr IB COL

[Alaska]

What is the COL for the 338 Win with the 225gr Hornady Interbond bullet?

Thanks for any help!

 

[JD338]

I don't have any spec on the Hornady bullet but I would think that if loaded to the cannelure, it would be at or slightly under the COL SAAMI spec of 3.340".

JD338

 

[hubcap]

I loaded up the 225 grain hornady this past summer. Here is the skinny. The cart. overall length in the win. model-70 I was working with was 3.420 ". I seated the bullet .025" deeper and went with that. The load turned out to shoot well in that particular rifle. Used IMR-4350, 71 grains. This is half a grain below nosler loading book number- 5 max. Used cci-250 primers and win. brass. Also if you seat this bullet all the way to the crimping cannular the cart overall length is right around the 3.330 to 3.340 area. Hope that helps a little. This is for the traditional interlock bullet in lieu of the the interbond.

 

[hubcap]

I guess Mr. Alaska is hybernating in the north pole. He,ll probably show up in the spring. :roll:

 

[FOTIS]

Cartridge : .338 Win Mag.
Bullet : .338, 225, Hornady InterBond 33209
Cartridge O.A.L. L6: 3.340 inch or 84.84 mm
Barrel Length : 24.0 inch or 609.6 mm
Powder : IMR 4350

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% 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

-20.0 87 56.80 2286 2611 34019 7910 88.3 1.526
-18.0 89 58.22 2343 2742 36352 8163 89.6 1.484
-16.0 92 59.64 2399 2876 38846 8409 90.7 1.439
-14.0 94 61.06 2456 3013 41513 8648 91.9 1.395
-12.0 96 62.48 2513 3154 44346 8879 92.9 1.353
-10.0 98 63.90 2569 3298 47356 9101 93.9 1.312
-08.0 100 65.32 2626 3446 50575 9313 94.8 1.273
-06.0 103 66.74 2683 3597 54021 9514 95.7 1.236 ! Near Maximum !
-04.0 105 68.16 2740 3751 57715 9703 96.4 1.199 ! Near Maximum !
-02.0 107 69.58 2797 3908 61677 9880 97.1 1.164 !DANGEROUS LOAD-DO NOT USE!
+00.0 109 71.00 2854 4069 65932 10044 97.8 1.130 !DANGEROUS LOAD-DO NOT USE!
+02.0 111 72.42 2911 4233 70506 10194 98.3 1.098 !DANGEROUS LOAD-DO NOT USE!
+04.0 114 73.84 2967 4399 75430 10328 98.8 1.066 !DANGEROUS LOAD-DO NOT USE!
+06.0 116 75.26 3024 4569 80740 10447 99.2 1.036 !DANGEROUS LOAD-DO NOT USE!
+08.0 118 76.68 3081 4741 86475 10548 99.5 1.006 !DANGEROUS LOAD-DO NOT USE!
+10.0 120 78.10 3137 4917 92681 10632 99.8 0.978 !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 109 71.00 2979 4432 78014 9887 100.0 1.054 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 109 71.00 2687 3608 54164 9739 91.8 1.230 ! Near Maximum !

 

[Alaska]

Thanks for the info.....spend my winters reloading and my summers hunting and shooting..........-32 deg F here today.......happy new year!