Firstly just joined so thank you for letting me join.
I have done some reloading 223 and been happy with the results, but enjoying the challenge of the Hornet.
I have a CZ American and although I had managed to get a good grouping from 17g cheep BT was having difficulty getting 20g Nosler and Vmax to work. Vmax were better than nosler.
In order for me to improve I have gone through the riffle and found the action was not torqued down. I have bought a torque screw driver and now made sure scope and action is done.
I am reloading to COAL 1.720 case: 1.345 and using an comparator. Hornady FL die and seating die.
Findings: since doing every up my 17g bullets are not grouping, I need to rework this load.
I am using H110 and data of quickload. Comment I have read is that the 17g do not like speed. so what do people run these at?
20g vmax: I have both H110 and N120.
N120 give me 3500 on my chrono at 11.5g, with a fill of 112%. 43300 psi .Data from Quickload. This again appears more powder than others are using: any thoughts on this?
Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms
-10.0 101 10.35 3201 455 31297 4927 91.4 0.952
-09.0 102 10.46 3236 465 32315 4988 91.9 0.940
-08.0 103 10.58 3272 475 33367 5047 92.5 0.929
-07.0 104 10.69 3307 486 34458 5105 93.1 0.917
-06.0 105 10.81 3342 496 35587 5160 93.6 0.906
-05.0 106 10.92 3377 507 36757 5214 94.1 0.895
-04.0 107 11.04 3413 517 37968 5267 94.6 0.883
-03.0 108 11.15 3448 528 39223 5317 95.1 0.871
-02.0 109 11.27 3483 539 40525 5365 95.5 0.859
-01.0 111 11.38 3518 550 41872 5412 96.0 0.847
+00.0 112 11.50 3553 561 43275 5456 96.4 0.835
H110: These seam excessive when Hodgdon has the max at 9.5: Again any thought please.
Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms
-10.0 79 9.81 3321 490 35076 5185 95.7 0.937
-09.0 79 9.92 3354 500 36147 5237 96.1 0.927
-08.0 80 10.03 3387 509 37249 5288 96.5 0.916
-07.0 81 10.14 3420 519 38383 5337 96.9 0.904
-06.0 82 10.25 3453 529 39551 5385 97.2 0.892
-05.0 83 10.36 3485 539 40753 5431 97.5 0.880
-04.0 84 10.46 3518 550 41991 5475 97.8 0.868
-03.0 85 10.57 3550 560 43266 5518 98.1 0.857
-02.0 86 10.68 3583 570 44578 5559 98.3 0.846
-01.0 86 10.79 3615 580 45930 5598 98.6 0.835 ! Near Maximum !
+00.0 87 10.90 3647 591 47322 5635 98.8 0.824 ! Near Maximum !
Sorry for so many questions, just trying to get this right , so thank you in advance
David