QL Help for Granddaughter's 7-08 ?

[otter25]

Wondering if someone would please run QL data for my granddaughter's 7-08 Ruger
Rem case
55.12gr h20
RL 17 and RL 19
CCI 200
2.775 COL
145gr Speer Hot Core Soft Point
22" barrel
elev 300 ft
temp 55 deg.

 

[otter25]

TTT

 

[otter25]

Did I do something wrong in this request ?

 

[SJB358]

Did I do something wrong in this request ?

Nope, you didn't. If I can, I will run this for you once I am next to a computer with QL buddy!

 

[DrMike]

Cartridge          : 7 mm-08 Rem.
Bullet             : .284, 145, Speer BTSP 1628
Useable Case Capaci: 48.959 grain H2O = 3.179 cm³
Cartridge O.A.L. L6: 2.775 inch = 70.49 mm
Barrel Length      : 22.0 inch = 558.8 mm
Powder             : Alliant Reloder-19 *C

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  100    45.09   2530    2060   41852   9368     89.7    1.263
-09.0  101    45.59   2560    2110   43307   9500     90.3    1.242
-08.0  102    46.09   2591    2161   44816   9631     90.9    1.223
-07.0  103    46.59   2622    2213   46385   9758     91.5    1.203
-06.0  104    47.09   2653    2265   48015   9883     92.1    1.184
-05.0  105    47.60   2683    2318   49708  10006     92.7    1.165
-04.0  107    48.10   2714    2372   51445  10125     93.2    1.147  ! Near Maximum !
-03.0  108    48.60   2746    2427   53298  10241     93.7    1.129  ! Near Maximum !
-02.0  109    49.10   2777    2482   55203  10354     94.2    1.111  ! Near Maximum !
-01.0  110    49.60   2808    2539   57185  10464     94.7    1.094  ! Near Maximum !
+00.0  111    50.10   2839    2596   59248  10569     95.2    1.076  ! Near Maximum !
+01.0  112    50.60   2871    2653   61397  10671     95.6    1.059  !DANGEROUS LOAD-DO NOT USE!
+02.0  113    51.10   2902    2712   63639  10770     96.1    1.043  !DANGEROUS LOAD-DO NOT USE!
+03.0  114    51.60   2934    2771   65974  10864     96.5    1.026  !DANGEROUS LOAD-DO NOT USE!
+04.0  115    52.10   2965    2831   68411  10954     96.9    1.010  !DANGEROUS LOAD-DO NOT USE!
+05.0  117    52.61   2997    2892   70955  11039     97.2    0.994  !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    111    50.10   2994    2887   71479  10659     99.3    0.995  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    111    50.10   2642    2247   48441   9948     87.2    1.180

Cartridge          : 7 mm-08 Rem.
Bullet             : .284, 145, Speer BTSP 1628
Useable Case Capaci: 48.959 grain H2O = 3.179 cm³
Cartridge O.A.L. L6: 2.775 inch = 70.49 mm
Barrel Length      : 22.0 inch = 558.8 mm
Powder             : Alliant Reloder-17 *T

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    43.38   2609    2191   42187   9803     98.0    1.248
-09.0   93    43.86   2639    2242   43636   9897     98.4    1.229
-08.0   94    44.34   2668    2293   45133   9987     98.7    1.210
-07.0   95    44.83   2698    2344   46688  10071     99.0    1.191
-06.0   96    45.31   2728    2396   48299  10150     99.2    1.172
-05.0   97    45.79   2758    2448   49970  10223     99.4    1.154
-04.0   98    46.27   2787    2501   51707  10291     99.6    1.136  ! Near Maximum !
-03.0   99    46.75   2817    2554   53504  10352     99.7    1.119  ! Near Maximum !
-02.0  100    47.24   2846    2608   55380  10408     99.9    1.101  ! Near Maximum !
-01.0  101    47.72   2875    2662   57326  10458     99.9    1.084  ! Near Maximum !
+00.0  102    48.20   2904    2716   59348  10502    100.0    1.068  ! Near Maximum !
+01.0  103    48.68   2933    2770   61450  10540    100.0    1.052  !DANGEROUS LOAD-DO NOT USE!
+02.0  104    49.16   2962    2825   63635  10574    100.0    1.036  !DANGEROUS LOAD-DO NOT USE!
+03.0  105    49.65   2991    2880   65909  10608    100.0    1.020  !DANGEROUS LOAD-DO NOT USE!
+04.0  106    50.13   3020    2936   68278  10640    100.0    1.004  !DANGEROUS LOAD-DO NOT USE!
+05.0  107    50.61   3048    2992   70742  10672    100.0    0.989  !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    48.20   3027    2950   72455  10029    100.0    0.988  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    102    48.20   2720    2382   48035  10589     96.3    1.173

 

[otter25]

Thank you very much DrMike, I appreciate your time.

 

[DrMike]

Thank you very much DrMike, I appreciate your time.

I'm not on the forum as much as I was in the past. Moreover, I'm exceptionally busy any more. Still, when I have a moment, I try to take time to contribute. Glad to help.

 

[garyw1911]

Now that you have your QL answer , I will share my range experience from 2 years ago :Bolt action 7mm08 , 22"BL . I followed Alliant's Reloder 17 data as closely as possible : FC brass (178gr weight) ; Fed210 ; 46.0gr Re17 ; OAL 2.793" @ Jump .005" ; Speer145gr BTSP . 2834f/s w/ ES = 10f/s ; Group = 1.266" @ 125 yards (translates to around 3.00" @ 300 yards).
This is a full power Hunting load , and not necessarily a target load ! Key points that I found : Re17 is a Double Base Stick powder . It needs to be compressed slightly to burn fully in a 22" BL . After I Full Length sized the FC brass , the 46.0 gr charge filled the case nearly to the base of the neck. This helped powder ignition. With your larger capacity case, you will need more powder than I did. Recoil was OK for an adult , but maybe not ideal for a youth to hold accurately . If you need a reduced load , see Hodgdon data : the Speer 145gr Flat Base takes 38.5gr H4895 for a start load @ 2599f/s . For bullet expansion test , I would use 4x 1gal jugs full of water @ 200Yards . Look for a nice mushroomed bullet . When my son had his first deer hunt in 1988 , I downloaded the Speer 130gr Flat Base to 2600f/s ; which killed his first deer ! Good Luck. Gary

 

[otter25]

Thank you all for this very helpful info. She has been shooting 46.5 @2731 fps and I have shot 47.0 as a test for velocity only @2849 fps. This is the vel. range I want to be at, 2800/2900 as she may be hunting in MT this fall, not Maine. I have loaded test loads w/RL 17 from 47 to 48gr half gr increments. also have loads w/RL 19 from 48 to 50gr. Aliants data goes to 51.0C but don't really want to go there. She is a crack shot for sure and very comfortable with firearms.

 

[Dougfir]

I've shot that bullet a fair bit in my 7mm-08. It's a nice bullet and a great deal. I was generally able to get it shooting well. Good luck!

 

[remingtonman_25_06]

For what it's worth, I use 46 RL17 with a 150g NBT at 2850fps and 1/2 MOA groups from my wife's Kimber lightweight 7-08