jw270wby
New Member
Trying to find some load data for the 378 wby with the sierra 350 gr matchking? not much on the internet anywhere.........
thx
thx
378 weatherby load with 350 grain matchking
- Thread starter jw270wby
- Start date
Help Support Long Range Hunting Forum
Cartridge : .378 Weath. Mag.
Bullet : .375, 350, Sierra HPBT MatchKing 9350
Useable Case Capaci: 108.436 grain H2O = 7.041 cm³
Cartridge O.A.L. L6: 3.655 inch = 92.84 mm
Barrel Length : 26.0 inch = 660.4 mm
Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 63840 psi, or 440 MPa
or a maximum loading ratio or filling of 105 %
These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !
193 loads produced a Loading Ratio below user-defined minimum of 90%. These powders have been skipped.
Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
PB Clermont PCL 517 101.6 108.4 7.03 2775 100.0 63840 11086 1.333 ! Near Maximum !
SNPE Vectan SP 12 101.4 108.2 7.01 2773 100.0 63840 11058 1.334 ! Near Maximum !
Vihtavuori N560 98.7 100.8 6.53 2770 100.0 63840 11351 1.342 ! Near Maximum !
Accurate MAGPRO 99.0 105.2 6.82 2770 99.6 63840 11562 1.347 ! Near Maximum !
Vihtavuori N570 105.0 110.7 7.17 2764 98.1 57495 12590 1.393 ! Near Maximum !
Norma MRP 96.8 101.0 6.54 2760 100.0 63840 10850 1.350 ! Near Maximum !
IMR 7828 SSC 97.6 100.2 6.49 2758 100.0 63840 10919 1.332 ! Near Maximum !
IMR 7828 103.1 100.2 6.49 2758 100.0 63840 10919 1.332 ! Near Maximum !
Alliant Reloder-25 104.6 104.0 6.74 2756 100.0 63840 10453 1.340 ! Near Maximum !
ADI AP 2214 102.7 106.5 6.90 2750 100.0 63840 10706 1.325 ! Near Maximum !
ADI AR 2213 98.7 99.7 6.46 2747 100.0 63840 10881 1.330 ! Near Maximum !
Winchester WXR 101.6 100.5 6.51 2740 100.0 63840 10798 1.350 ! Near Maximum !
Bofors RP15 101.6 100.5 6.51 2740 100.0 63840 10798 1.350 ! Near Maximum !
Raufoss RA15 99.0 100.0 6.48 2740 100.0 63840 10770 1.349 ! Near Maximum !
Alliant Reloder-22 99.0 100.0 6.48 2740 100.0 63840 10770 1.349 ! Near Maximum !
Bofors RP5/NP ~approximation 99.0 100.0 6.48 2740 100.0 63840 10770 1.349 ! Near Maximum !
Alliant Reloder-33 105.0 115.3 7.47 2739 98.2 56319 12443 1.406 ! Near Maximum !
Bofors RP30 105.0 105.0 6.80 2729 100.0 60004 11216 1.387 ! Near Maximum !
Norma MRP 2 105.0 105.0 6.80 2729 100.0 60004 11216 1.387 ! Near Maximum !
Bofors RP5 NT ~approximation 102.5 104.4 6.77 2728 99.5 63840 10978 1.331 ! Near Maximum !
Ramshot Magnum 98.9 107.6 6.97 2723 100.0 63840 10264 1.345 ! Near Maximum !
ReloadSwiss RS 70 90.6 96.5 6.25 2720 100.0 63840 10081 1.344 ! Near Maximum !
Rottweil R905 100.3 99.5 6.45 2717 100.0 63840 10657 1.349 ! Near Maximum !
ADI AR 2209 95.6 95.0 6.16 2701 100.0 63840 10227 1.340 ! Near Maximum !
Alliant Reloder-19 96.1 96.1 6.23 2700 100.0 63840 10287 1.347 ! Near Maximum !
Bofors RP14 ~approximation 96.8 96.8 6.27 2694 100.0 63840 10221 1.348 ! Near Maximum !
Hodgdon H4831 101.4 98.5 6.38 2688 99.9 63840 10342 1.344 ! Near Maximum !
Hodgdon H4831 SC 97.5 98.5 6.38 2688 99.9 63840 10342 1.344 ! Near Maximum !
Ramshot Hunter 91.7 94.7 6.13 2680 100.0 63840 9843 1.357 ! Near Maximum !
Raufoss RA4 94.3 94.2 6.11 2679 100.0 63840 10041 1.349 ! Near Maximum !
Bofors RP4 ~approximation 94.3 94.2 6.11 2679 100.0 63840 10041 1.349 ! Near Maximum !
Norma 204 91.3 94.2 6.11 2679 100.0 63840 10041 1.349 ! Near Maximum !
ADI AR 2217 105.0 103.8 6.73 2672 100.0 57763 10578 1.385 ! Near Maximum !
Hodgdon H1000 105.0 103.8 6.73 2672 100.0 57763 10578 1.385 ! Near Maximum !
Somchem S385 96.3 97.3 6.30 2661 100.0 63840 9754 1.369 ! Near Maximum !
Winchester Supreme 780 95.0 100.1 6.49 2660 100.0 63840 9817 1.355 ! Near Maximum !
ReloadSwiss RS 80 105.0 113.9 7.38 2659 97.7 50847 12173 1.468
Rottweil R904 95.2 93.9 6.08 2657 100.0 63840 9887 1.350 ! Near Maximum !
Vihtavuori N165 101.4 100.3 6.50 2650 100.0 63840 9562 1.360 ! Near Maximum !
ADI AR 2218 105.0 111.8 7.24 2650 96.6 50207 12506 1.462
Norma URP 91.2 90.2 5.84 2650 100.0 63840 9404 1.366 ! Near Maximum !
Bofors RP19 ~approximation 91.2 90.2 5.85 2650 100.0 63840 9402 1.366 ! Near Maximum !
Bofors RP4 NT ~approximation 92.0 93.3 6.05 2649 100.0 63840 9576 1.363 ! Near Maximum !
Vihtavuori N160 101.7 97.5 6.31 2644 100.0 63840 9726 1.353 ! Near Maximum !
Accurate 4350 90.3 90.2 5.85 2644 100.0 63840 9330 1.385 ! Near Maximum !
Lovex S071 104.8 99.1 6.42 2642 100.0 63840 9427 1.387 ! Near Maximum !
Accurate 3100 99.1 99.1 6.42 2642 100.0 63840 9427 1.387 ! Near Maximum !
Somchem S365 92.7 92.2 5.97 2642 100.0 63840 9109 1.376 ! Near Maximum !
ADI AR 2225 105.0 105.5 6.84 2638 100.0 51147 10817 1.463
Hodgdon Retumbo 105.0 105.5 6.84 2638 100.0 51147 10817 1.463
Hodgdon H4350 94.0 91.9 5.95 2637 100.0 63840 9418 1.354 ! Near Maximum !
Somchem S361 94.4 100.5 6.51 2637 99.9 63840 9802 1.360 ! Near Maximum !
IMR 4350 92.2 91.7 5.94 2636 100.0 63840 9394 1.355 ! Near Maximum !
IMR 4831 95.7 91.6 5.94 2633 100.0 63840 9193 1.376 ! Near Maximum !
Lovex S070 91.3 90.3 5.85 2632 100.0 63840 9389 1.371 ! Near Maximum !
Lovex S065 90.4 88.4 5.73 2605 100.0 63840 9034 1.372 ! Near Maximum !
Hodgdon Hybrid 100V 93.6 90.5 5.86 2601 100.0 63840 8666 1.372 ! Near Maximum !
Lovex D100 105.0 112.9 7.32 2596 93.5 57952 10597 1.409 ! Near Maximum !
Vihtavuori 24N41 105.0 111.8 7.24 2587 91.5 52938 11184 1.446
Norma 217 105.0 103.4 6.70 2573 100.0 46194 11059 1.552
Hodgdon H870 105.0 108.4 7.02 2561 97.2 45836 11625 1.548
Vihtavuori N150 91.7 86.5 5.61 2543 100.0 63840 8246 1.384 ! Near Maximum !
Vihtavuori N170 105.0 103.8 6.73 2541 95.6 52911 10464 1.483
Alliant Reloder-50 105.0 113.5 7.36 2541 94.7 43967 12056 1.599
Bofors 12,7mmRA NC1214 Lot20115087 105.0 111.0 7.19 2478 86.9 45764 11290 1.605
Hodgdon US 869 105.0 111.8 7.24 2426 88.1 43400 10568 1.594
Hodgdon 50BMG 105.0 106.6 6.90 2423 84.0 43654 10585 1.590
SNPE Vectan SP 13 105.0 107.2 6.95 2380 92.4 40172 10306 1.660
Accurate 8700 105.0 109.5 7.10 2363 91.7 39083 10324 1.665
Vihtavuori 20N29 105.0 112.9 7.32 2347 88.6 37922 10471 1.699
PB Clermont PCL 513/520/9520 105.0 107.2 6.95 2325 89.7 37667 10103 1.708
NC A3502 ,test only 105.0 102.7 6.65 2139 66.1 34341 8265 1.776
TLP A 502(RH) ,test only 105.0 102.7 6.65 2119 70.3 32423 8549 1.811
Vihtavuori N32C Tin Star 98.7 49.2 3.19 1883 100.0 63840 3814 1.524 ! Near Maximum !
IMR TrailBoss 105.0 35.4 2.29 1581 100.0 39356 2852 1.882
ADI AS 25 BP 105.0 35.4 2.29 1581 100.0 39356 2852 1.882
V1734 7-multiperf ,test only 105.0 102.7 6.65 1518 32.8 17794 4086 2.389
Bullet : .375, 350, Sierra HPBT MatchKing 9350
Useable Case Capaci: 108.436 grain H2O = 7.041 cm³
Cartridge O.A.L. L6: 3.655 inch = 92.84 mm
Barrel Length : 26.0 inch = 660.4 mm
Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 63840 psi, or 440 MPa
or a maximum loading ratio or filling of 105 %
These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !
193 loads produced a Loading Ratio below user-defined minimum of 90%. These powders have been skipped.
Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
PB Clermont PCL 517 101.6 108.4 7.03 2775 100.0 63840 11086 1.333 ! Near Maximum !
SNPE Vectan SP 12 101.4 108.2 7.01 2773 100.0 63840 11058 1.334 ! Near Maximum !
Vihtavuori N560 98.7 100.8 6.53 2770 100.0 63840 11351 1.342 ! Near Maximum !
Accurate MAGPRO 99.0 105.2 6.82 2770 99.6 63840 11562 1.347 ! Near Maximum !
Vihtavuori N570 105.0 110.7 7.17 2764 98.1 57495 12590 1.393 ! Near Maximum !
Norma MRP 96.8 101.0 6.54 2760 100.0 63840 10850 1.350 ! Near Maximum !
IMR 7828 SSC 97.6 100.2 6.49 2758 100.0 63840 10919 1.332 ! Near Maximum !
IMR 7828 103.1 100.2 6.49 2758 100.0 63840 10919 1.332 ! Near Maximum !
Alliant Reloder-25 104.6 104.0 6.74 2756 100.0 63840 10453 1.340 ! Near Maximum !
ADI AP 2214 102.7 106.5 6.90 2750 100.0 63840 10706 1.325 ! Near Maximum !
ADI AR 2213 98.7 99.7 6.46 2747 100.0 63840 10881 1.330 ! Near Maximum !
Winchester WXR 101.6 100.5 6.51 2740 100.0 63840 10798 1.350 ! Near Maximum !
Bofors RP15 101.6 100.5 6.51 2740 100.0 63840 10798 1.350 ! Near Maximum !
Raufoss RA15 99.0 100.0 6.48 2740 100.0 63840 10770 1.349 ! Near Maximum !
Alliant Reloder-22 99.0 100.0 6.48 2740 100.0 63840 10770 1.349 ! Near Maximum !
Bofors RP5/NP ~approximation 99.0 100.0 6.48 2740 100.0 63840 10770 1.349 ! Near Maximum !
Alliant Reloder-33 105.0 115.3 7.47 2739 98.2 56319 12443 1.406 ! Near Maximum !
Bofors RP30 105.0 105.0 6.80 2729 100.0 60004 11216 1.387 ! Near Maximum !
Norma MRP 2 105.0 105.0 6.80 2729 100.0 60004 11216 1.387 ! Near Maximum !
Bofors RP5 NT ~approximation 102.5 104.4 6.77 2728 99.5 63840 10978 1.331 ! Near Maximum !
Ramshot Magnum 98.9 107.6 6.97 2723 100.0 63840 10264 1.345 ! Near Maximum !
ReloadSwiss RS 70 90.6 96.5 6.25 2720 100.0 63840 10081 1.344 ! Near Maximum !
Rottweil R905 100.3 99.5 6.45 2717 100.0 63840 10657 1.349 ! Near Maximum !
ADI AR 2209 95.6 95.0 6.16 2701 100.0 63840 10227 1.340 ! Near Maximum !
Alliant Reloder-19 96.1 96.1 6.23 2700 100.0 63840 10287 1.347 ! Near Maximum !
Bofors RP14 ~approximation 96.8 96.8 6.27 2694 100.0 63840 10221 1.348 ! Near Maximum !
Hodgdon H4831 101.4 98.5 6.38 2688 99.9 63840 10342 1.344 ! Near Maximum !
Hodgdon H4831 SC 97.5 98.5 6.38 2688 99.9 63840 10342 1.344 ! Near Maximum !
Ramshot Hunter 91.7 94.7 6.13 2680 100.0 63840 9843 1.357 ! Near Maximum !
Raufoss RA4 94.3 94.2 6.11 2679 100.0 63840 10041 1.349 ! Near Maximum !
Bofors RP4 ~approximation 94.3 94.2 6.11 2679 100.0 63840 10041 1.349 ! Near Maximum !
Norma 204 91.3 94.2 6.11 2679 100.0 63840 10041 1.349 ! Near Maximum !
ADI AR 2217 105.0 103.8 6.73 2672 100.0 57763 10578 1.385 ! Near Maximum !
Hodgdon H1000 105.0 103.8 6.73 2672 100.0 57763 10578 1.385 ! Near Maximum !
Somchem S385 96.3 97.3 6.30 2661 100.0 63840 9754 1.369 ! Near Maximum !
Winchester Supreme 780 95.0 100.1 6.49 2660 100.0 63840 9817 1.355 ! Near Maximum !
ReloadSwiss RS 80 105.0 113.9 7.38 2659 97.7 50847 12173 1.468
Rottweil R904 95.2 93.9 6.08 2657 100.0 63840 9887 1.350 ! Near Maximum !
Vihtavuori N165 101.4 100.3 6.50 2650 100.0 63840 9562 1.360 ! Near Maximum !
ADI AR 2218 105.0 111.8 7.24 2650 96.6 50207 12506 1.462
Norma URP 91.2 90.2 5.84 2650 100.0 63840 9404 1.366 ! Near Maximum !
Bofors RP19 ~approximation 91.2 90.2 5.85 2650 100.0 63840 9402 1.366 ! Near Maximum !
Bofors RP4 NT ~approximation 92.0 93.3 6.05 2649 100.0 63840 9576 1.363 ! Near Maximum !
Vihtavuori N160 101.7 97.5 6.31 2644 100.0 63840 9726 1.353 ! Near Maximum !
Accurate 4350 90.3 90.2 5.85 2644 100.0 63840 9330 1.385 ! Near Maximum !
Lovex S071 104.8 99.1 6.42 2642 100.0 63840 9427 1.387 ! Near Maximum !
Accurate 3100 99.1 99.1 6.42 2642 100.0 63840 9427 1.387 ! Near Maximum !
Somchem S365 92.7 92.2 5.97 2642 100.0 63840 9109 1.376 ! Near Maximum !
ADI AR 2225 105.0 105.5 6.84 2638 100.0 51147 10817 1.463
Hodgdon Retumbo 105.0 105.5 6.84 2638 100.0 51147 10817 1.463
Hodgdon H4350 94.0 91.9 5.95 2637 100.0 63840 9418 1.354 ! Near Maximum !
Somchem S361 94.4 100.5 6.51 2637 99.9 63840 9802 1.360 ! Near Maximum !
IMR 4350 92.2 91.7 5.94 2636 100.0 63840 9394 1.355 ! Near Maximum !
IMR 4831 95.7 91.6 5.94 2633 100.0 63840 9193 1.376 ! Near Maximum !
Lovex S070 91.3 90.3 5.85 2632 100.0 63840 9389 1.371 ! Near Maximum !
Lovex S065 90.4 88.4 5.73 2605 100.0 63840 9034 1.372 ! Near Maximum !
Hodgdon Hybrid 100V 93.6 90.5 5.86 2601 100.0 63840 8666 1.372 ! Near Maximum !
Lovex D100 105.0 112.9 7.32 2596 93.5 57952 10597 1.409 ! Near Maximum !
Vihtavuori 24N41 105.0 111.8 7.24 2587 91.5 52938 11184 1.446
Norma 217 105.0 103.4 6.70 2573 100.0 46194 11059 1.552
Hodgdon H870 105.0 108.4 7.02 2561 97.2 45836 11625 1.548
Vihtavuori N150 91.7 86.5 5.61 2543 100.0 63840 8246 1.384 ! Near Maximum !
Vihtavuori N170 105.0 103.8 6.73 2541 95.6 52911 10464 1.483
Alliant Reloder-50 105.0 113.5 7.36 2541 94.7 43967 12056 1.599
Bofors 12,7mmRA NC1214 Lot20115087 105.0 111.0 7.19 2478 86.9 45764 11290 1.605
Hodgdon US 869 105.0 111.8 7.24 2426 88.1 43400 10568 1.594
Hodgdon 50BMG 105.0 106.6 6.90 2423 84.0 43654 10585 1.590
SNPE Vectan SP 13 105.0 107.2 6.95 2380 92.4 40172 10306 1.660
Accurate 8700 105.0 109.5 7.10 2363 91.7 39083 10324 1.665
Vihtavuori 20N29 105.0 112.9 7.32 2347 88.6 37922 10471 1.699
PB Clermont PCL 513/520/9520 105.0 107.2 6.95 2325 89.7 37667 10103 1.708
NC A3502 ,test only 105.0 102.7 6.65 2139 66.1 34341 8265 1.776
TLP A 502(RH) ,test only 105.0 102.7 6.65 2119 70.3 32423 8549 1.811
Vihtavuori N32C Tin Star 98.7 49.2 3.19 1883 100.0 63840 3814 1.524 ! Near Maximum !
IMR TrailBoss 105.0 35.4 2.29 1581 100.0 39356 2852 1.882
ADI AS 25 BP 105.0 35.4 2.29 1581 100.0 39356 2852 1.882
V1734 7-multiperf ,test only 105.0 102.7 6.65 1518 32.8 17794 4086 2.389
Velocity and accuracy?
Thanks for posting the Quick Load info and actual results on this round.
I don't have one, but I am close to buying QL. I am very impressed that the QL MV calculation is within 1% of the actual result posted by fasttrax88. Given the number of factors involved, astounded might be more descriptive.
I don't have one, but I am close to buying QL. I am very impressed that the QL MV calculation is within 1% of the actual result posted by fasttrax88. Given the number of factors involved, astounded might be more descriptive.
Tikkamike
Well-Known Member
That is because most people are not badass enough to shoot a 378! 378 was on my short list of dream rifles when I was a kid. I wanted one in a mxv deluxe. When the 375 rum came out I bought one of those in an XCR and ended up selling it after some bad gunsmith experiences. I now have a custom and love the big 375's what are the details on your rifle?
I was wondering if someone can comment about the powder type vs. felt recoil from the data ?
For example, just looking at the Norma powder data
MRP2...... 2729 fps.......60k psi
204.........2679 fps.......63k psi
217.........2573 fps.......46k psi
I could imagine times when it would make sense to give up 150 fps to soften the recoil, if this actually results in a 20 - 25% reduction in recoil (using the pressure number).
Is this felt recoil vs. peak pressure a viable indication ? Yes of course there is the effect of bullet mass x velocity, but sometimes there are other factors as well.
The other interesting thing for me is H50BMG. The reason this is interesting is that even when a lot of other powders were not available, this one often is. Is it correct to assume that since about 15% of the powder is unburned, it will "flash" in front of the barrel, and leave a lot of fouling mess, or will it largely be blown out of the barrel ?
For example, just looking at the Norma powder data
MRP2...... 2729 fps.......60k psi
204.........2679 fps.......63k psi
217.........2573 fps.......46k psi
I could imagine times when it would make sense to give up 150 fps to soften the recoil, if this actually results in a 20 - 25% reduction in recoil (using the pressure number).
Is this felt recoil vs. peak pressure a viable indication ? Yes of course there is the effect of bullet mass x velocity, but sometimes there are other factors as well.
The other interesting thing for me is H50BMG. The reason this is interesting is that even when a lot of other powders were not available, this one often is. Is it correct to assume that since about 15% of the powder is unburned, it will "flash" in front of the barrel, and leave a lot of fouling mess, or will it largely be blown out of the barrel ?
Tikkamike
Well-Known Member
if recoil is a consideration you are shooting the wrong gun. Get a brake and shoot a full power load. otherwise sell it and get something you are comfortable with.
I wish life were that easy. I will probably only purchase one more good quality rifle setup, and it will likely be used by not only me, but also family.
My approach is to buy a bit more gun than is needed and use hand loading to tune the result for the task. It isn't optimal, but doing it this way, I can cover a lot of ground with 2 rifles.
My approach is to buy a bit more gun than is needed and use hand loading to tune the result for the task. It isn't optimal, but doing it this way, I can cover a lot of ground with 2 rifles.
jw270wby
New Member
Thanks guys for the information. I have a Mk V that shoots great and I was looking for a caliber between my 30-378 and 50 cal....like maybe a cheytec, but thought maybe I could turn my 378 into a longgggg ranger with the 350 gr sierra. I ordered a box, so we shall see.
Marine sniper
Well-Known Member
Digging up an old thread; any updates on your 378? I am considering building one for long range hunting.
This is a 338 LAI I have. If I did a 378 it would be similar build to this. This rifles weighs 11.5 lbs including scope. I would run a 30 in tube on the 378, so probably 12 lbs. out the door.
Attachments
This does nicely as a long range hunting rifle
memtb
Well-Known Member
Darn Fotis, I hate that you couldn't find much data…..
nothing but a tease!
memtb
nothing but a tease!
memtb
