A Quikload request

[Malxwal]

My laptop with Quikload has died, hence my request for some assistance:
If some kind soul could advise on the theoretical pressure increase, and resultant potential for over pressure, by altering the seating depth from 3.330 to 3.250.
Cartridge is 284W,
57.5gr N165
68.4gr H2O capacity
Case length 2.160
Much appreciated
Malc

 

[Andyquadra]

What bullet?

 

[Malxwal]

What bullet?

Hahaha, knew I'd forget something, really not my day today...
180 ELDM

 

[Dave_45]

My laptop with Quikload has died, hence my request for some assistance:
If some kind soul could advise on the theoretical pressure increase, and resultant potential for over pressure, by altering the seating depth from 3.330 to 3.250.
Cartridge is 284W,
57.5gr N165
68.4gr H2O capacity
Case length 2.160
Much appreciated
Malc

Is that with a bullet seated H2o capacity?

 

[Malxwal]

Is that with a bullet seated H2o capacity?

No, the H2O capacity is that of an empty, fired case filled to the very brim with water.

 

[Lancaster]

My laptop with Quikload has died, hence my request for some assistance:
If some kind soul could advise on the theoretical pressure increase, and resultant potential for over pressure, by altering the seating depth from 3.330 to 3.250.
Cartridge is 284W,
57.5gr N165
68.4gr H2O capacity
Case length 2.160
Much appreciated
Malc

Hope this helps.


Cartridge : .284 Win.
Bullet : .284, 180, Hornady ELD-M 28503
Useable Case Capaci: 60.663 grain H2O = 3.939 cm³
Cartridge O.A.L. L6: 3.330 inch = 84.58 mm
Barrel Length : 17.0 inch = 431.8 mm
Powder : Vihtavuori N165 *C

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.155% 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

-21.5 82 45.11 1910 1459 29747 11837 87.2 1.433
-19.4 84 46.35 1966 1545 31968 12310 88.7 1.393
-17.2 86 47.59 2022 1634 34352 12773 90.1 1.354
-15.1 88 48.83 2078 1726 36936 13225 91.5 1.315
-12.9 91 50.07 2135 1821 39693 13663 92.8 1.270
-10.8 93 51.30 2191 1920 42629 14085 94.0 1.226
-08.6 95 52.54 2249 2021 45781 14488 95.1 1.183
-06.5 97 53.78 2306 2125 49170 14871 96.1 1.143
-04.3 99 55.02 2364 2233 52821 15231 97.0 1.104
-02.2 102 56.26 2421 2343 56753 15564 97.8 1.066 ! Near Maximum !
+00.0 104 57.50 2479 2456 60994 15870 98.5 1.030 ! Near Maximum !
+02.2 106 58.74 2537 2572 65574 16146 99.0 0.995 !DANGEROUS LOAD-DO NOT USE!
+04.3 108 59.98 2595 2691 70527 16390 99.4 0.961 !DANGEROUS LOAD-DO NOT USE!
+06.5 111 61.22 2653 2812 75892 16599 99.8 0.929 !DANGEROUS LOAD-DO NOT USE!
+08.6 113 62.46 2710 2936 81714 16771 99.9 0.897 !DANGEROUS LOAD-DO NOT USE!
+10.8 115 63.70 2768 3063 88044 16905 100.0 0.867 !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 3% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 3% relative to nominal value:
+Ba 104 57.50 2519 2537 64577 15857 99.4 1.004 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 3% relative to nominal value:
-Ba 104 57.50 2435 2370 57436 15805 97.1 1.058 ! Near Maximum !

Cartridge : .284 Win.
Bullet : .284, 180, Hornady ELD-M 28503
Useable Case Capaci: 59.391 grain H2O = 3.856 cm³
Cartridge O.A.L. L6: 3.250 inch = 82.55 mm
Barrel Length : 17.0 inch = 431.8 mm
Powder : Vihtavuori N165 *C

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.155% 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

-21.5 83 45.11 1934 1495 30741 11844 87.7 1.414
-19.4 86 46.35 1991 1584 33078 12311 89.3 1.374
-17.2 88 47.59 2048 1676 35599 12767 90.7 1.334
-15.1 90 48.83 2105 1771 38321 13210 92.1 1.291
-12.9 92 50.07 2163 1869 41240 13638 93.3 1.246
-10.8 95 51.30 2221 1971 44359 14048 94.5 1.202
-08.6 97 52.54 2279 2075 47714 14438 95.6 1.160
-06.5 99 53.78 2337 2183 51331 14806 96.5 1.119
-04.3 102 55.02 2396 2294 55235 15149 97.4 1.080 ! Near Maximum !
-02.2 104 56.26 2454 2408 59454 15465 98.1 1.043 ! Near Maximum !
+00.0 106 57.50 2513 2525 64018 15751 98.8 1.007 !DANGEROUS LOAD-DO NOT USE!
+02.2 108 58.74 2572 2644 68962 16005 99.3 0.972 !DANGEROUS LOAD-DO NOT USE!
+04.3 111 59.98 2631 2767 74329 16224 99.6 0.938 !DANGEROUS LOAD-DO NOT USE!
+06.5 113 61.22 2690 2892 80164 16406 99.9 0.906 !DANGEROUS LOAD-DO NOT USE!
+08.6 115 62.46 2749 3020 86521 16550 100.0 0.875 !DANGEROUS LOAD-DO NOT USE!
+10.8 118 63.70 2807 3150 93465 16659 100.0 0.845 !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 3% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 3% relative to nominal value:
+Ba 106 57.50 2553 2605 67801 15711 99.6 0.981 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 3% relative to nominal value:
-Ba 106 57.50 2470 2437 60262 15711 97.5 1.034 ! Near Maximum !

 

[Malxwal]

Hmm, not what I wanted to see, but rather that than a face full of bolt shroud (at best).
Many thanks !

 

[Lancaster]

Hmm, not what I wanted to see, but rather that than a face full of bolt shroud (at best).
Many thanks !

Is the shorter length that you want to try because of max mag size?
I'm happy to run the figures again with charge variation to fit that length.

 

[Dave_45]

My max h20 with a bullet seated was 60
120gr pro hunter
108gr hasler ariete was the same

Rs70 which I believe is similar burn to N165
Pro hunter was 53gr giving me 3200fps

108gr 52.5 warp speed Mr sulu

Both close to maximum

 

[Malxwal]

Is the shorter length that you want to try because of max mag size?
I'm happy to run the figures again with charge variation to fit that length.

It's ammo I had from a previous rifle, would need to seat bullets deeper to chamber in new one, which is throated differentlt. It's only for barrel run in, so I'll just load new rounds.
Much appreciate your assistance though

 

[Lancaster]

It's ammo I had from a previous rifle, would need to seat bullets deeper to chamber in new one, which is throated differentlt. It's only for barrel run in, so I'll just load new rounds.
Much appreciate your assistance though

No problem, I think you've made the right call.

 

[Malxwal]

No problem, I think you've made the right call.

Rebuilt at 54.0 gr and 3.240.

 

[Lancaster]

Rebuilt at 54.0 gr and 3.240.

That should be a really nice load to shoot.

Cartridge : .284 Win.
Bullet : .284, 180, Hornady ELD-M 28503
Useable Case Capaci: 59.228 grain H2O = 3.846 cm³
Cartridge O.A.L. L6: 3.240 inch = 82.30 mm
Barrel Length : 17.0 inch = 431.8 mm
Powder : Vihtavuori N165 *C

Predicted data by increasing and decreasing the given charge,
incremented in steps of 0.556% 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

-05.6 94 51.00 2210 1952 43798 13944 94.3 1.209
-05.0 95 51.30 2224 1977 44579 14041 94.6 1.199
-04.4 96 51.60 2238 2002 45375 14138 94.8 1.189
-03.9 96 51.90 2252 2028 46185 14233 95.1 1.178
-03.3 97 52.20 2266 2053 47010 14326 95.4 1.168
-02.8 97 52.50 2281 2079 47850 14418 95.6 1.158
-02.2 98 52.80 2295 2105 48706 14509 95.8 1.148
-01.7 98 53.10 2309 2131 49578 14599 96.1 1.138
-01.1 99 53.40 2323 2157 50465 14687 96.3 1.128
-00.6 99 53.70 2337 2183 51370 14774 96.5 1.119
+00.0 100 54.00 2351 2210 52291 14859 96.8 1.109
+00.6 101 54.30 2366 2237 53230 14943 97.0 1.100
+01.1 101 54.60 2380 2264 54186 15025 97.2 1.090
+01.7 102 54.90 2394 2291 55161 15106 97.4 1.081 ! Near Maximum !
+02.2 102 55.20 2408 2318 56153 15185 97.6 1.072 ! Near Maximum !
+02.8 103 55.50 2423 2346 57165 15262 97.7 1.062 ! Near Maximum !

Results caused by ± 3% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 3% relative to nominal value:
+Ba 100 54.00 2393 2289 55407 14939 98.1 1.081 ! Near Maximum !
Data for burning rate decreased by 3% relative to nominal value:
-Ba 100 54.00 2306 2126 49207 14708 95.0 1.140

 

[Malxwal]

It's a 30" barrel, another thing I forgot to mention.

 

[Neddle]

Down load GRT

 

[Lancaster]

It's a 30" barrel, another thing I forgot to mention.

I've just noticed that the calc I ran was for a 17" barrel for another persons rifle, a 30" barrel makes quite a difference, around 350fps!

+00.0 100 54.00 2703 2920 52291 7658 99.8 1.535

If you have access to a chrono when your testing let me know your real life figures and I can tweak it and also look at OBT nodes.
Cheers

 

[Malxwal]

I've just noticed that the calc I ran was for a 17" barrel for another persons rifle, a 30" barrel makes quite a difference, around 350fps!

+00.0 100 54.00 2703 2920 52291 7658 99.8 1.535

If you have access to a chrono when your testing let me know your real life figures and I can tweak it and also look at OBT nodes.
Cheers

Many thanks. I have a good chrono. At the moment, it's just breaking in the barrel, hoping to get round to load development over next couple weeks, with an eye to having it at least competitive at 500/600 by the 26th November.