I have a custom 6.5x55 shooting Berger 153.5gr using Lapua brass and 43.2gr of RL17 @ 2830fps from a 29” barrel. When my brass was virgin it extracted smoothly. I have found after reloading that brass I am getting clickers
here's some Quickload predicted data at 62,000 PSI in a 29" barrel :
Cartridge : 6.5 x 55
Bullet : .264, 153.5,Berger LRBTHP #26786
Useable Case Capaci: 52.418 grain H2O = 3.403 cm³
Cartridge O.A.L. L6: 3.185 inch = 80.90 mm
Barrel Length : 29.0 inch = 736.6 mm
Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 62000 psi, or 427 MPa
or a maximum loading ratio or filling of 105 %
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 !
52 loads produced a Loading Ratio below user-defined minimum of 80%. 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
--------------------------------- -----------------------------------------------------------------
Vihtavuori N568 104.8 52.9 3.42 2915 99.2 62000 9797 1.386 ! Near Maximum !
Alliant Reloder-26 92.9 48.3 3.13 2889 100.0 62000 8695 1.376 ! Near Maximum !
Norma MRP 2 104.0 50.2 3.26 2884 99.9 62000 9231 1.374 ! Near Maximum !
Alliant Reloder-25 102.1 49.1 3.18 2882 100.0 62000 8530 1.363 ! Near Maximum !
Alliant Reloder-33 105.0 55.0 3.57 2877 97.4 57805 10138 1.409 ! Near Maximum !
Vihtavuori N560 96.1 47.4 3.07 2874 99.6 62000 9284 1.374 ! Near Maximum !
Norma MRP 94.1 47.5 3.08 2873 100.0 62000 8869 1.378 ! Near Maximum !
IMR 7828SSC 95.3 47.3 3.07 2868 99.8 62000 8962 1.363 ! Near Maximum !
Accurate MAGPRO 96.4 49.5 3.21 2865 98.9 62000 9406 1.379 ! Near Maximum !
Vihtavuori N565 100.3 49.8 3.23 2851 99.7 62000 9162 1.390 ! Near Maximum !
Alliant Reloder-22 96.3 47.0 3.05 2847 100.0 62000 8835 1.382 ! Near Maximum !
Hodgdon H1000 105.0 50.2 3.25 2841 99.9 60865 8748 1.367 ! Near Maximum !
Ramshot Magnum 96.6 50.8 3.29 2835 100.0 62000 8411 1.373 ! Near Maximum !
Hodgdon Retumbo 105.0 51.0 3.31 2829 100.0 55160 8901 1.407
Alliant Reloder-19 93.7 45.3 2.93 2807 100.0 62000 8464 1.387 ! Near Maximum !
Alliant Reloder-16 89.2 42.0 2.72 2803 100.0 62000 7775 1.384 ! Near Maximum !
Alliant Reloder-17 84.3 42.7 2.77 2801 100.0 62000 7781 1.391 ! Near Maximum !
Alliant Reloder-23 97.5 46.1 2.99 2799 100.0 62000 7784 1.393 ! Near Maximum !
Ramshot Hunter 89.3 44.5 2.89 2793 100.0 62000 8065 1.395 ! Near Maximum !
Hodgdon H414 84.3 43.1 2.79 2791 100.0 62000 8087 1.396 ! Near Maximum !
Winchester 760 84.3 43.1 2.79 2791 100.0 62000 8087 1.396 ! Near Maximum !
Vihtavuori N555 94.1 44.6 2.89 2787 100.0 62000 7832 1.410 ! Near Maximum !
Hodgdon H4831SC 95.1 46.4 3.01 2786 99.4 62000 8476 1.387 ! Near Maximum !
Norma 204 89.1 44.4 2.88 2784 100.0 62000 8273 1.391 ! Near Maximum !
Vihtavuori N550 86.3 42.6 2.76 2769 100.0 62000 7823 1.408 ! Near Maximum !
Norma URP 88.7 42.4 2.75 2765 100.0 62000 7695 1.405 ! Near Maximum !
IMR 4955 Enduron 96.7 45.4 2.94 2758 99.5 62000 8260 1.396 ! Near Maximum !
Vihtavuori N165 98.8 47.2 3.06 2752 100.0 62000 7853 1.401 ! Near Maximum !
Accurate 4350 87.4 42.2 2.74 2751 100.0 62000 7602 1.417 ! Near Maximum !
Hodgdon H4350 91.8 43.4 2.81 2746 100.0 62000 7766 1.402 ! Near Maximum !
IMR 4350 90.1 43.3 2.81 2745 100.0 62000 7745 1.403 ! Near Maximum !
IMR 4831 93.0 43.0 2.79 2745 100.0 62000 7508 1.414 ! Near Maximum !
IMR 4451 Enduron 86.7 41.4 2.68 2733 100.0 62000 7652 1.387 ! Near Maximum !
Vihtavuori N160 86.4 42.6 2.76 2726 100.0 62000 7297 1.411 ! Near Maximum !
Hodgdon Hybrid 100V 91.0 42.5 2.76 2717 100.0 62000 7063 1.412 ! Near Maximum !