338 Fed Quick Load Request Please

Divernhunter

Handloader
Apr 1, 2009
777
142
I used some book data for the 338Fed and 210gr Sirocco Swift bullets. It was Starline brass, win mag primers and 45.5grs of Win 748 for 2441FPS and SD 4 in my short barrel rifle.
I also tested a 200gr Nosler BT bullet with same brass/primer and 50.5grs of Win 748 for 2592FPS and SD 1.
OAL for both was 2.280"

My question is how much more powder can I safely use for the 210gr Sirocco load?? I understand there is 10grs difference in bullet weight and also a difference in the jacket material (Swift bullet is bonded and 100% pure copper) but would like to safely get a bit more FPS with the Swift bullet. This is what I was thinking about for a Wisconsin Whitetail deer hunt.

Thanks for any help you can give me.
 
Code:
Cartridge          : .338 Federal
Bullet             : .338, 210, Swift Scirocco
Useable Case Capaci: 44.356 grain H2O = 2.880 cm³
Cartridge O.A.L. L6: 2.820 inch = 71.63 mm
Barrel Length      : 22.0 inch = 558.8 mm
Powder             : Winchester 748

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% 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

-10.0   92    40.32   2279    2422   42162   6217     96.3    1.283
-09.0   93    40.77   2304    2475   43592   6280     96.7    1.264
-08.0   94    41.22   2329    2529   45077   6341     97.0    1.246
-07.0   95    41.66   2353    2583   46616   6399     97.4    1.227
-06.0   96    42.11   2378    2638   48213   6456     97.7    1.209
-05.0   97    42.56   2403    2693   49873   6509     98.0    1.192
-04.0   98    43.01   2428    2748   51597   6560     98.3    1.174  ! Near Maximum !
-03.0   99    43.46   2452    2805   53384   6609     98.5    1.157  ! Near Maximum !
-02.0  100    43.90   2477    2861   55247   6654     98.8    1.141  ! Near Maximum !
-01.0  101    44.35   2502    2919   57181   6697     99.0    1.124  ! Near Maximum !
+00.0  102    44.80   2526    2976   59193   6737     99.2    1.108  ! Near Maximum !
+01.0  103    45.25   2551    3034   61287   6774     99.4    1.092  !DANGEROUS LOAD-DO NOT USE!
+02.0  104    45.70   2575    3093   63464   6808     99.5    1.076  !DANGEROUS LOAD-DO NOT USE!
+03.0  105    46.14   2600    3152   65737   6839     99.7    1.061  !DANGEROUS LOAD-DO NOT USE!
+04.0  106    46.59   2624    3211   68102   6867     99.8    1.046  !DANGEROUS LOAD-DO NOT USE!
+05.0  107    47.04   2649    3271   70568   6891     99.9    1.031  !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    102    44.80   2632    3230   71937   6439    100.0    1.032  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    102    44.80   2375    2630   48042   6686     94.1    1.209
 
have the Swift reloading manual and looked at the Hodgdon website. I was just wondering what Quick load had to show
 
Thanks DrMike. I posted my 2nd post before your post showed up on my computer. The quick load is less than the Hodgdon data and as I remember the Swift book data also. Thank you for taking the time to do this for me.
 
Interesting results with the 200 gr BT! What was the accuracy like?

I have the 200 gr AB that I want to develop a load for in my Sako with a 22" Wilson carbon fibre barrel.
I have found reference for a load of 50.6 gr of Re-17 that is supposed to produce 2652 fps in a 24" barrel. Will see how working up a load in my rifle performs. I have Federal brass and F210 and 210M primers. Also have some WLRM primers too, if that works better.
Hopefully I can get a SD as low as yours!
 
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