Guy Miner
Master Loader
- Apr 6, 2006
- 17,793
- 6,044
It's California.
Weatherby rifles were/are very popular there. Flashy!
Weatherby rifles were/are very popular there. Flashy!
7mm Rem Mag or 7mm Wby
- Thread starter gerry
- Start date
Oldtrader3
Ammo Smith
- Nov 6, 2009
- 8,406
- 6
Partly California, partly Weatherby's marketing focus on technical/professional people.
- Thread starter
- #24
gerry
Ammo Smith
- Mar 1, 2007
- 6,909
- 1,791
SJB358":iyhq5tgn said:
Nice, RL 25? There is a lot to like about the Scirocco......
I hope to use H 4831 sc for mine but also have some Retumbo and some old Hercules RL 22 left. I am toying with the idea of using the 150 gr E Tip instead of the 160 gr AccuBond, the E Tip would be better at close range but the AccuBond would expand better farther out.
I'm starting with RL25 Gerry. Seems like it should work well. Although I have a brand new container of Norma MRP that may not be too bad either. I like the looks of the bullet and the results I've seen from you all with it as well.
You might have just talked me into trying MRP! Ha!
You might have just talked me into trying MRP! Ha!
LD375
Handloader
- May 18, 2009
- 1,239
- 3
SJB358":1iy72svw said:
Scotty, you well love that bullet pal :grin: ..It's my go to bullet for my 7mm Rem Mag, scary accurate, and hangs together real well, nice mushroom too.
Looking forward to your results pal
Lou
- Thread starter
- #27
gerry
Ammo Smith
- Mar 1, 2007
- 6,909
- 1,791
SJB358":364wscoy said:
MRP is one of the best, I'm sure you will like it. I would love to get my hands on some again. I may give those 150 gr Swifts a go too.......
I think I will like them Lou. I have no reason to try them other than just to try em, but I do like Swift bullets. Once Mike talked me into trying them out, I have found a few that have been very impressive, with the .257 120 A-Frame in the 25-06. It is the first bullet that went 8 jugs in such a small bore and retained just about every grain of weight. Accurate too..
Gerry, MRP looks real good as well. I am thinking anything 3100 or better would be fine. Good BC on the bullet.
Cartridge : 7 mm Rem. Mag.(CIP)
Bullet : .284, 150, Swift Scirocco
Useable Case Capaci: 72.801 grain H2O = 4.727 cm³
Cartridge O.A.L. L6: 3.290 inch = 83.57 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Norma MRP
Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% 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
-20.0 79 55.60 2532 2136 32008 11168 93.1 1.544
-18.0 81 56.99 2598 2248 34259 11514 94.3 1.504
-16.0 83 58.38 2664 2363 36680 11842 95.5 1.464
-14.0 85 59.77 2730 2482 39281 12152 96.5 1.425
-12.0 87 61.16 2795 2603 42079 12440 97.4 1.381
-10.0 89 62.55 2861 2726 45086 12706 98.2 1.337
-08.0 91 63.94 2927 2853 48331 12947 98.8 1.294
-06.0 93 65.33 2992 2981 51806 13161 99.3 1.254
-04.0 95 66.72 3057 3112 55505 13348 99.7 1.214 ! Near Maximum !
-02.0 97 68.11 3121 3245 59470 13505 99.9 1.176 ! Near Maximum !
+00.0 99 69.50 3185 3379 63724 13632 100.0 1.140 ! Near Maximum !
+02.0 101 70.89 3248 3515 68294 13737 100.0 1.105 !DANGEROUS LOAD-DO NOT USE!
+04.0 103 72.28 3311 3652 73207 13836 100.0 1.071 !DANGEROUS LOAD-DO NOT USE!
+06.0 105 73.67 3374 3791 78496 13930 100.0 1.038 !DANGEROUS LOAD-DO NOT USE!
+08.0 107 75.06 3435 3931 84197 14019 100.0 1.007 !DANGEROUS LOAD-DO NOT USE!
+10.0 109 76.45 3497 4073 90351 14103 100.0 0.976 !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 99 69.50 3320 3670 77711 13101 100.0 1.050 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 99 69.50 2984 2967 50304 13726 96.7 1.260
RL25 isn't too bad..
Cartridge : 7 mm Rem. Mag.(CIP)
Bullet : .284, 150, Swift Scirocco
Useable Case Capaci: 72.801 grain H2O = 4.727 cm³
Cartridge O.A.L. L6: 3.290 inch = 83.57 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Alliant Reloder-25
Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% 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
-20.0 86 57.20 2535 2141 31792 11142 95.5 1.539
-18.0 88 58.63 2601 2254 34022 11461 96.6 1.498
-16.0 90 60.06 2668 2370 36425 11755 97.6 1.457
-14.0 92 61.49 2734 2489 38999 12022 98.4 1.417
-12.0 94 62.92 2800 2611 41766 12259 99.1 1.374
-10.0 96 64.35 2865 2735 44744 12466 99.6 1.330
-08.0 99 65.78 2931 2861 47951 12639 99.9 1.287
-06.0 101 67.21 2995 2988 51412 12777 100.0 1.246
-04.0 103 68.64 3059 3117 55145 12889 100.0 1.206
-02.0 105 70.07 3122 3247 59174 12995 100.0 1.168 ! Near Maximum !
+00.0 107 71.50 3185 3379 63541 13097 100.0 1.131 ! Near Maximum !
+02.0 109 72.93 3247 3512 68269 13194 100.0 1.096 !DANGEROUS LOAD-DO NOT USE!
+04.0 111 74.36 3309 3647 73397 13286 100.0 1.061 !DANGEROUS LOAD-DO NOT USE!
+06.0 114 75.79 3370 3783 78971 13373 100.0 1.028 !DANGEROUS LOAD-DO NOT USE!
+08.0 116 77.22 3431 3921 85032 13454 100.0 0.997 !DANGEROUS LOAD-DO NOT USE!
+10.0 118 78.65 3492 4062 91592 13530 100.0 0.966 !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 107 71.50 3310 3648 78464 12603 100.0 1.042 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 107 71.50 2993 2984 50629 13554 98.6 1.248
Gerry, MRP looks real good as well. I am thinking anything 3100 or better would be fine. Good BC on the bullet.
Cartridge : 7 mm Rem. Mag.(CIP)
Bullet : .284, 150, Swift Scirocco
Useable Case Capaci: 72.801 grain H2O = 4.727 cm³
Cartridge O.A.L. L6: 3.290 inch = 83.57 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Norma MRP
Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% 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
-20.0 79 55.60 2532 2136 32008 11168 93.1 1.544
-18.0 81 56.99 2598 2248 34259 11514 94.3 1.504
-16.0 83 58.38 2664 2363 36680 11842 95.5 1.464
-14.0 85 59.77 2730 2482 39281 12152 96.5 1.425
-12.0 87 61.16 2795 2603 42079 12440 97.4 1.381
-10.0 89 62.55 2861 2726 45086 12706 98.2 1.337
-08.0 91 63.94 2927 2853 48331 12947 98.8 1.294
-06.0 93 65.33 2992 2981 51806 13161 99.3 1.254
-04.0 95 66.72 3057 3112 55505 13348 99.7 1.214 ! Near Maximum !
-02.0 97 68.11 3121 3245 59470 13505 99.9 1.176 ! Near Maximum !
+00.0 99 69.50 3185 3379 63724 13632 100.0 1.140 ! Near Maximum !
+02.0 101 70.89 3248 3515 68294 13737 100.0 1.105 !DANGEROUS LOAD-DO NOT USE!
+04.0 103 72.28 3311 3652 73207 13836 100.0 1.071 !DANGEROUS LOAD-DO NOT USE!
+06.0 105 73.67 3374 3791 78496 13930 100.0 1.038 !DANGEROUS LOAD-DO NOT USE!
+08.0 107 75.06 3435 3931 84197 14019 100.0 1.007 !DANGEROUS LOAD-DO NOT USE!
+10.0 109 76.45 3497 4073 90351 14103 100.0 0.976 !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 99 69.50 3320 3670 77711 13101 100.0 1.050 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 99 69.50 2984 2967 50304 13726 96.7 1.260
RL25 isn't too bad..
Cartridge : 7 mm Rem. Mag.(CIP)
Bullet : .284, 150, Swift Scirocco
Useable Case Capaci: 72.801 grain H2O = 4.727 cm³
Cartridge O.A.L. L6: 3.290 inch = 83.57 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Alliant Reloder-25
Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% 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
-20.0 86 57.20 2535 2141 31792 11142 95.5 1.539
-18.0 88 58.63 2601 2254 34022 11461 96.6 1.498
-16.0 90 60.06 2668 2370 36425 11755 97.6 1.457
-14.0 92 61.49 2734 2489 38999 12022 98.4 1.417
-12.0 94 62.92 2800 2611 41766 12259 99.1 1.374
-10.0 96 64.35 2865 2735 44744 12466 99.6 1.330
-08.0 99 65.78 2931 2861 47951 12639 99.9 1.287
-06.0 101 67.21 2995 2988 51412 12777 100.0 1.246
-04.0 103 68.64 3059 3117 55145 12889 100.0 1.206
-02.0 105 70.07 3122 3247 59174 12995 100.0 1.168 ! Near Maximum !
+00.0 107 71.50 3185 3379 63541 13097 100.0 1.131 ! Near Maximum !
+02.0 109 72.93 3247 3512 68269 13194 100.0 1.096 !DANGEROUS LOAD-DO NOT USE!
+04.0 111 74.36 3309 3647 73397 13286 100.0 1.061 !DANGEROUS LOAD-DO NOT USE!
+06.0 114 75.79 3370 3783 78971 13373 100.0 1.028 !DANGEROUS LOAD-DO NOT USE!
+08.0 116 77.22 3431 3921 85032 13454 100.0 0.997 !DANGEROUS LOAD-DO NOT USE!
+10.0 118 78.65 3492 4062 91592 13530 100.0 0.966 !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 107 71.50 3310 3648 78464 12603 100.0 1.042 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 107 71.50 2993 2984 50629 13554 98.6 1.248
- Thread starter
- #29
gerry
Ammo Smith
- Mar 1, 2007
- 6,909
- 1,791
It looks like you will be able to move those out pretty quick.
- Thread starter
- #31
gerry
Ammo Smith
- Mar 1, 2007
- 6,909
- 1,791
Hope you let us know how it all works out, we need to get out soon for some more shooting too.
I will Gerry. It has been a few months since ive gotten to shoot. Going to mount up the old M8 4x Leupold on my grandpas 300 Savage and get it zeroed I think. I've got a 2-10 Minox for my sons 243. Wanna get that one mounted as well. I've got some work to do and I'm looking forward to it!
I haven't used my old 7mm Rem Mag in a long time so getting it loaded up and ready to hunt feels like the right thing to do.
I haven't used my old 7mm Rem Mag in a long time so getting it loaded up and ready to hunt feels like the right thing to do.
- Thread starter
- #33
gerry
Ammo Smith
- Mar 1, 2007
- 6,909
- 1,791
The old Leupold is a great match for a 300 Savage, should be a fun project.
- Thread starter
- #36
gerry
Ammo Smith
- Mar 1, 2007
- 6,909
- 1,791
I have a couple of boxes of 160 gr Accubonds on order so that's will be the first bullet I will try. Was going to get some 150 gr E Tips but since this will be my long range gun for everything from moose down to deer the AccuBond probably is the better all around choice whether near or far.
Oldtrader3
Ammo Smith
- Nov 6, 2009
- 8,406
- 6
I get about 2950 in my 7mm Rem Mag with Sub-MOA accuracy to 300 yards with 160 Partitions. That combination has killed everything which I have ever shot with it, so no reason to change.
- Thread starter
- #39
gerry
Ammo Smith
- Mar 1, 2007
- 6,909
- 1,791
The barrel made it here this week and looks to be in excellent shape. I'm just deciding whether to send it all off now or wait a couple months.
