A favor from Dr. Mike?;-)

Dougfir

Beginner
Mar 2, 2018
74
0
Barnes doesn't seem to have any data for H 4350 and the 7mm-08. I'm looking to try the following load:

7mm-08
2.775"
139 grain Barnes LRX
H 4350
22" barrel

If you were willing to run that for me, on Quick Loads, I'd be very grateful!
 
Unfortunately, my data set does not have the 139 grain Barnes LRX included. Perhaps the current update will have it, but I haven't secured that data set yet.
 
The current update does have the 139 grain Barnes LRX BT. I don't feel comfortable running it as I am just learning but if you need any bullet data I can get it for you
 
close nuff

Cartridge : 7 mm-08 Rem.
Bullet : .284, 140, Barnes 'TTSX'BT 30300
Useable Case Capaci: 45.280 grain H2O = 2.940 cm³
Cartridge O.A.L. L6: 2.775 inch = 70.49 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : Hodgdon H4350

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 82 33.61 2068 1329 26694 6247 80.3 1.505
-18.0 84 34.45 2117 1393 28262 6472 81.6 1.470
-16.0 86 35.29 2167 1459 29929 6695 82.9 1.436
-14.0 88 36.13 2217 1528 31701 6917 84.1 1.402
-12.0 91 36.97 2267 1598 33586 7136 85.3 1.370
-10.0 93 37.81 2318 1671 35591 7352 86.5 1.338
-08.0 95 38.65 2369 1745 37726 7565 87.7 1.306
-06.0 97 39.49 2421 1822 40001 7774 88.8 1.275
-04.0 99 40.33 2472 1900 42427 7978 89.8 1.245
-02.0 101 41.17 2524 1981 45015 8177 90.8 1.216
+00.0 103 42.01 2576 2063 47779 8370 91.8 1.187
+02.0 105 42.85 2629 2148 50734 8556 92.7 1.158
+04.0 107 43.69 2681 2235 53897 8734 93.6 1.128 ! Near Maximum !
+06.0 109 44.53 2734 2324 57285 8905 94.5 1.098 ! Near Maximum !
+08.0 111 45.37 2787 2415 60920 9067 95.2 1.068 !DANGEROUS LOAD-DO NOT USE!
+10.0 113 46.21 2840 2508 64825 9219 96.0 1.040 !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 103 42.01 2719 2298 56616 8633 97.3 1.107 ! Near Maximum !
Data for burning rate decreased by 10% relative to nominal value:
-Ba 103 42.01 2404 1797 39756 7772 83.4 1.276
 
Thanks all! I'm surprised, I thought H 4350 would push it a little faster than that. I'm guessing the LRX is a tad longer than the ttsx and might eat up a little more case capacity, as well.
 
Max pressure listed is 60191 per saami. I load them to 64k or under. Same as my 280 and 30-06. If a 270 and 308 can take it so can they but you're on your own at that point.
 
FOTIS":2ljvv6nh said:
close nuff

Cartridge : 7 mm-08 Rem.
Bullet : .284, 140, Barnes 'TTSX'BT 30300
Useable Case Capaci: 45.280 grain H2O = 2.940 cm³
Cartridge O.A.L. L6: 2.775 inch = 70.49 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : Hodgdon H4350

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 82 33.61 2068 1329 26694 6247 80.3 1.505
-18.0 84 34.45 2117 1393 28262 6472 81.6 1.470
-16.0 86 35.29 2167 1459 29929 6695 82.9 1.436
-14.0 88 36.13 2217 1528 31701 6917 84.1 1.402
-12.0 91 36.97 2267 1598 33586 7136 85.3 1.370
-10.0 93 37.81 2318 1671 35591 7352 86.5 1.338
-08.0 95 38.65 2369 1745 37726 7565 87.7 1.306
-06.0 97 39.49 2421 1822 40001 7774 88.8 1.275
-04.0 99 40.33 2472 1900 42427 7978 89.8 1.245
-02.0 101 41.17 2524 1981 45015 8177 90.8 1.216
+00.0 103 42.01 2576 2063 47779 8370 91.8 1.187
+02.0 105 42.85 2629 2148 50734 8556 92.7 1.158
+04.0 107 43.69 2681 2235 53897 8734 93.6 1.128 ! Near Maximum !
+06.0 109 44.53 2734 2324 57285 8905 94.5 1.098 ! Near Maximum !
+08.0 111 45.37 2787 2415 60920 9067 95.2 1.068 !DANGEROUS LOAD-DO NOT USE!
+10.0 113 46.21 2840 2508 64825 9219 96.0 1.040 !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 103 42.01 2719 2298 56616 8633 97.3 1.107 ! Near Maximum !
Data for burning rate decreased by 10% relative to nominal value:
-Ba 103 42.01 2404 1797 39756 7772 83.4 1.276

Fotis, any chance you'd run the same load for me, but with the 140 Nosler e-tip instead? I can't find any reliable load data for that. Thanks!
 
It's not Quick Load but the Nosler #9 book lists powders and loads for 140 grain bullets to include the 140 grain E-tip. Right below the 140 gr. E-Tip listing at the top of the page it shows this.

"Due to internal construction differences always begin with starting loads when using E-tip products."

That should get you started on the right track. I do like the quick load stuff though. I don't have the program myself but I just might have to take the leap and get it. If you don't have the Nosler book you can search it on -line and just start as they suggest. Hope this helps.
David

David
 
6mm Remington":1wpfzuzq said:
It's not Quick Load but the Nosler #9 book lists powders and loads for 140 grain bullets to include the 140 grain E-tip. Right below the 140 gr. E-Tip listing at the top of the page it shows this.

"Due to internal construction differences always begin with starting loads when using E-tip products."

That should get you started on the right track. I do like the quick load stuff though. I don't have the program myself but I just might have to take the leap and get it. If you don't have the Nosler book you can search it on -line and just start as they suggest. Hope this helps.
David

David
Thanks. I do use their data quite a bit, they just don't have any 140 data for H 4350.
 
Nosler #9. :shock: Didn't take then long to replace #8. :roll: :roll: :roll: :roll: :lol: :lol: :lol: :lol: :lol: Typo I'm sure :wink:
Paul B.
 
PJGunner":csaz96dw said:
Nosler #9. :shock: Didn't take then long to replace #8. :roll: :roll: :roll: :roll: :lol: :lol: :lol: :lol: :lol: Typo I'm sure :wink:
Paul B.
Are you saying that there's a new version of the book that has the H 4350 data for 140 grain bullets, now? I called Nosler the other day and they said they didn't. They recommended I use the 140 and 145 grain data on the Hodgdon website as guidance, which I can do, I just like having as much data as possible to compare!
 
DrMike":3a1wdlme said:
Unfortunately, my data set does not have the 139 grain Barnes LRX included. Perhaps the current update will have it, but I haven't secured that data set yet.

It's because he left the "U" out of "favor", ins't it :lol: :lol:
 
hunter24605":13dr2hsh said:
DrMike":13dr2hsh said:
Unfortunately, my data set does not have the 139 grain Barnes LRX included. Perhaps the current update will have it, but I haven't secured that data set yet.

It's because he left the "U" out of "favor", ins't it :lol: :lol:

Well, that and I guess I haven't been neighboUrly. :mrgreen:
 
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