Load Specifications
Bullet: | .308 | 138gr | Hasler ARIETE |
Manufacturer SKU: | A30-138 |
Bullet Weight: | 138gr | 8.9g |
Bullet Diameter: | 0.308" | 7.82mm |
Bullet Length: | 1.200" | 30.5mm |
Caliber: | .300 Rem. Ultra Mag |
Case Length (l3): | 2.850" | 72.4mm |
Cartridge Length (C.O.L.): | 3.544" | 90.0mm |
Seated Depth: | 0.506" | 12.9mm |
Shank Seated Depth: | 0.286" | 7.3mm |
Case Capacity: | 112.5 Grains of Water | 7.30 cm³ |
Primer Size: | Large Rifle Magnum (LRM) |
Max. allowed Pressure: | 64977 psi | 4480 bar |
LID: | LID_B7069_C374 |
>> Use the Personalized Load Calculator further below to adjust input parameters.
Load data for 146 loads in caliber .300 Rem. Ultra Mag with .308 | 138gr | Hasler ARIETE bullet and 73 powder(s). The key underlying parameters are shown in the table above.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge unless there are reasons. Since xxlreloading.com has no control over the equipment and components used by the customer and the data used in connection with the website, any responsibility and liability for the results achieved is rejected. Also see our Terms of Service.
Questions regarding the load data: Please read the information in the next tab "Explanations".
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A load must fulfill certain criteria to be listed in the default view below - see here.
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Our load data might deviate from other sources - see the most common reasons here.
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All loads are based on the bullet and case dimensions shown under "Load Specifications" - see here what to do if you deviate.
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You can set your specifications in the "Personalized Load Calculator".
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Go to the bottom of the "My Account " page to set the measure system (imperial vs. metric)
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Use the Personalized Load Calculator to customize loads to your own specific requirements. Find more details in the help section.
Our default view only displays powders/loads that fulfill certain criteria: Max pressure of a load <=90% of Max. Standardized Pressure. Fill Rate (Min FR): >80% and <100% for rife loads, >60% and <100% for pistol loads. Min. Propellant Combustion (Min z): >90% for rifle loads , >80% for pistol/revolver loads. Relax these criteria at your own risk to potentially get more powders shown in the load tables.
Click on the desired row in the tables below to add a specific load / powder to your Diary and manage there.
Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
ADI AR 2208 | <<locked>> | 84% | 58189 | 90% | **50 | 100% |
ADI AR 2209 | <<locked>> | 94% | 57914 | 89% | **12 | 99% |
ADI AR 2213 | <<locked>> | 97% | 57899 | 89% | **35 | 98% |
[ADI AR 2217]* | <<locked>> | 97% | 41568 | 64% | **00 | 94% |
ADI AR 2225 | <<locked>> | 97% | 36912 | 57% | **38 | 95% |
Accurate 2700 | <<locked>> | 85% | 57986 | 89% | **94 | 99% |
Accurate 3100 | <<locked>> | 97% | 57014 | 88% | **20 | 100% |
Accurate 4350 | <<locked>> | 89% | 57899 | 89% | **76 | 100% |
Accurate MAGPRO | <<locked>> | 97% | 57624 | 89% | **22 | 96% |
Alliant Reloder- TS 15.5 | <<locked>> | 84% | 58349 | 90% | **43 | 100% |
Alliant Reloder-16 | <<locked>> | 90% | 57783 | 89% | **19 | 100% |
Alliant Reloder-17 | <<locked>> | 85% | 58204 | 90% | **19 | 100% |
Alliant Reloder-19 | <<locked>> | 94% | 58262 | 90% | **05 | 99% |
Alliant Reloder-22 | <<locked>> | 97% | 57464 | 88% | **32 | 99% |
Alliant Reloder-23 | <<locked>> | 97% | 54491 | 84% | **50 | 100% |
Alliant Reloder-25 | <<locked>> | 97% | 46789 | 72% | **68 | 100% |
Alliant Reloder-26 👍 | <<locked>> | 94% | 57841 | 89% | **61 | 100% |
[Hodgdon H1000]* | <<locked>> | 97% | 41568 | 64% | **00 | 94% |
Hodgdon H414 | <<locked>> | 85% | 58175 | 90% | **02 | 100% |
Hodgdon H4350 | <<locked>> | 92% | 58001 | 89% | **53 | 99% |
Hodgdon H4831 | <<locked>> | 97% | 53476 | 82% | **97 | 96% |
Hodgdon H4831 SC | <<locked>> | 95% | 57943 | 89% | **73 | 97% |
Hodgdon Hybrid 100V | <<locked>> | 92% | 58291 | 90% | **46 | 100% |
Hodgdon LVR | <<locked>> | 87% | 58276 | 90% | **92 | 100% |
Hodgdon Retumbo | <<locked>> | 97% | 36912 | 57% | **38 | 95% |
Hodgdon Superperformance | <<locked>> | 87% | 58160 | 90% | **19 | 100% |
Hodgdon VARGET | <<locked>> | 84% | 58189 | 90% | **50 | 100% |
Hodgdon TrailBoss | <<locked>> | 97% | 34780 | 54% | **47 | 100% |
IMR 4064 | <<locked>> | 85% | 58218 | 90% | **36 | 100% |
IMR 4166 Enduron | <<locked>> | 85% | 57812 | 89% | **36 | 100% |
IMR 4350 | <<locked>> | 90% | 58073 | 89% | **53 | 99% |
IMR 4451 Enduron | <<locked>> | 86% | 57856 | 89% | **46 | 100% |
IMR 4831 | <<locked>> | 94% | 58044 | 89% | **59 | 100% |
IMR 4955 Enduron | <<locked>> | 97% | 58349 | 90% | **50 | 98% |
IMR 7828 SSC | <<locked>> | 96% | 58001 | 89% | **48 | 98% |
Lovex S065 | <<locked>> | 88% | 58102 | 89% | **36 | 100% |
Lovex S070 | <<locked>> | 89% | 58102 | 89% | **59 | 100% |
Lovex S071 | <<locked>> | 97% | 46847 | 72% | **59 | 99% |
Norma 204 👍 | <<locked>> | 90% | 58218 | 90% | **92 | 99% |
Norma MRP | <<locked>> | 95% | 57870 | 89% | **51 | 100% |
Norma URP | <<locked>> | 90% | 58276 | 90% | **92 | 100% |
Ramshot Hunter 👍 | <<locked>> | 90% | 58030 | 89% | **99 | 100% |
Ramshot Magnum | <<locked>> | 97% | 57464 | 88% | **86 | 99% |
ReloadSwiss RS 14 | <<locked>> | 96% | 35186 | 54% | **83 | 100% |
ReloadSwiss RS 60 | <<locked>> | 86% | 58305 | 90% | **38 | 100% |
ReloadSwiss RS 62 | <<locked>> | 88% | 57798 | 89% | **89 | 100% |
ReloadSwiss RS 70 | <<locked>> | 89% | 57812 | 89% | **41 | 100% |
ReloadSwiss RS 76 | <<locked>> | 97% | 46688 | 72% | **07 | 99% |
[ReloadSwiss RS 80]* | <<locked>> | 97% | 41698 | 64% | **43 | 92% |
Rottweil R 903 | <<locked>> | 85% | 58334 | 90% | **40 | 100% |
Rottweil R 904 | <<locked>> | 93% | 58436 | 90% | **66 | 98% |
Rottweil R 905 | <<locked>> | 95% | 58334 | 90% | **99 | 99% |
Rottweil R 907 | <<locked>> | 87% | 58073 | 89% | **50 | 99% |
SNPE Vectan SP 11 | <<locked>> | 84% | 57957 | 89% | **73 | 100% |
SNPE Vectan Tubal 5000 | <<locked>> | 85% | 58218 | 90% | **22 | 100% |
SNPE Vectan Tubal 7000 | <<locked>> | 88% | 57986 | 89% | **97 | 100% |
Shooters World Long Rifle | <<locked>> | 88% | 58102 | 89% | **36 | 100% |
Somchem S355 | <<locked>> | 85% | 57943 | 89% | **33 | 100% |
Somchem S361 | <<locked>> | 92% | 58436 | 90% | **14 | 97% |
Somchem S365 | <<locked>> | 91% | 57885 | 89% | **76 | 100% |
Somchem S385 | <<locked>> | 94% | 57856 | 89% | **53 | 99% |
Vihtavuori N135 | <<locked>> | 86% | 58305 | 90% | **58 | 100% |
Vihtavuori N150 | <<locked>> | 90% | 58276 | 90% | **97 | 100% |
Vihtavuori N160 | <<locked>> | 87% | 58059 | 89% | **40 | 100% |
Vihtavuori N165 | <<locked>> | 97% | 52895 | 81% | **61 | 99% |
Vihtavuori N550 | <<locked>> | 87% | 58363 | 90% | **89 | 100% |
Vihtavuori N555 👍 | <<locked>> | 96% | 58276 | 90% | **02 | 100% |
Vihtavuori N560 | <<locked>> | 97% | 58044 | 89% | **48 | 98% |
Vihtavuori N565 | <<locked>> | 97% | 49066 | 76% | **68 | 96% |
[Vihtavuori N568]* | <<locked>> | 97% | 42743 | 66% | **66 | 92% |
Winchester 6.5 StaBALL | <<locked>> | 88% | 58015 | 89% | **94 | 100% |
Winchester 760 | <<locked>> | 85% | 58175 | 90% | **02 | 100% |
Winchester StaBALL HD 👍 | <<locked>> | 97% | 51808 | 80% | **09 | 100% |
Max Load - Barrel Length: 23.60''
Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
ADI AR 2208 | <<locked>> | 81% | 52707 | 81% | **54 | 100% |
[ADI AR 2209]* | <<locked>> | 81% | 36724 | 57% | **89 | 93% |
[ADI AR 2213]* | <<locked>> | 83% | 35331 | 54% | **66 | 90% |
[ADI AR 2217]* | <<locked>> | 92% | 35244 | 54% | **33 | 90% |
[ADI AR 2225]* | <<locked>> | 91% | 29675 | 46% | **15 | 90% |
Accurate 2700 | <<locked>> | 81% | 50879 | 78% | **76 | 98% |
[Accurate 3100]* | <<locked>> | 81% | 31546 | 49% | **21 | 94% |
Accurate 4350 | <<locked>> | 81% | 43279 | 67% | **33 | 99% |
[Accurate MAGPRO]* | <<locked>> | 87% | 39508 | 61% | **77 | 90% |
Alliant Reloder- TS 15.5 | <<locked>> | 81% | 53519 | 82% | **84 | 100% |
Alliant Reloder-16 | <<locked>> | 81% | 42032 | 65% | **49 | 99% |
Alliant Reloder-17 | <<locked>> | 81% | 49313 | 76% | **87 | 100% |
[Alliant Reloder-19]* | <<locked>> | 81% | 36463 | 56% | **76 | 93% |
[Alliant Reloder-22]* | <<locked>> | 81% | 32140 | 49% | **94 | 91% |
Alliant Reloder-23 | <<locked>> | 81% | 30530 | 47% | **54 | 97% |
[Alliant Reloder-25]* | <<locked>> | 81% | 26687 | 41% | **36 | 91% |
Alliant Reloder-26 | <<locked>> | 81% | 33823 | 52% | **99 | 97% |
[Hodgdon H1000]* | <<locked>> | 92% | 35244 | 54% | **33 | 90% |
Hodgdon H414 | <<locked>> | 81% | 50125 | 77% | **74 | 99% |
Hodgdon H4350 | <<locked>> | 81% | 40234 | 62% | **28 | 96% |
[Hodgdon H4831]* | <<locked>> | 86% | 36695 | 56% | **59 | 90% |
[Hodgdon H4831 SC]* | <<locked>> | 83% | 36695 | 56% | **59 | 90% |
Hodgdon Hybrid 100V | <<locked>> | 81% | 39363 | 61% | **25 | 100% |
Hodgdon LVR | <<locked>> | 81% | 46441 | 71% | **92 | 99% |
[Hodgdon Retumbo]* | <<locked>> | 91% | 29675 | 46% | **15 | 90% |
Hodgdon Superperformance | <<locked>> | 81% | 45948 | 71% | **09 | 98% |
Hodgdon VARGET | <<locked>> | 81% | 52170 | 80% | **45 | 100% |
Hodgdon TrailBoss | <<locked>> | 81% | 27644 | 43% | **83 | 100% |
IMR 4064 | <<locked>> | 81% | 51576 | 79% | **35 | 100% |
IMR 4166 Enduron | <<locked>> | 81% | 50227 | 77% | **12 | 99% |
IMR 4350 | <<locked>> | 81% | 42612 | 66% | **81 | 97% |
IMR 4451 Enduron | <<locked>> | 81% | 48689 | 75% | **95 | 98% |
IMR 4831 | <<locked>> | 81% | 37362 | 58% | **82 | 98% |
[IMR 4955 Enduron]* | <<locked>> | 82% | 35418 | 54% | **00 | 90% |
[IMR 7828 SSC]* | <<locked>> | 83% | 35636 | 55% | **85 | 90% |
Lovex S065 | <<locked>> | 81% | 45658 | 70% | **33 | 99% |
Lovex S070 | <<locked>> | 81% | 44048 | 68% | **13 | 98% |
[Lovex S071]* | <<locked>> | 81% | 26527 | 41% | **67 | 91% |
Norma 204 | <<locked>> | 81% | 42670 | 66% | **10 | 95% |
[Norma MRP]* | <<locked>> | 81% | 33605 | 52% | **62 | 93% |
Norma URP | <<locked>> | 81% | 43076 | 66% | **33 | 99% |
Ramshot Hunter | <<locked>> | 81% | 42337 | 65% | **23 | 98% |
[Ramshot Magnum]* | <<locked>> | 81% | 30008 | 46% | **12 | 90% |
ReloadSwiss RS 14 | <<locked>> | 81% | 28050 | 43% | **23 | 100% |
ReloadSwiss RS 60 | <<locked>> | 81% | 47572 | 73% | **77 | 100% |
ReloadSwiss RS 62 | <<locked>> | 81% | 43874 | 68% | **49 | 99% |
ReloadSwiss RS 70 | <<locked>> | 81% | 42540 | 65% | **72 | 99% |
[ReloadSwiss RS 76]* | <<locked>> | 86% | 30458 | 47% | **64 | 90% |
[ReloadSwiss RS 80]* | <<locked>> | 94% | 37739 | 58% | **54 | 90% |
Rottweil R 903 | <<locked>> | 81% | 50879 | 78% | **31 | 100% |
[Rottweil R 904]* | <<locked>> | 81% | 37927 | 58% | **69 | 92% |
[Rottweil R 905]* | <<locked>> | 81% | 35447 | 55% | **59 | 93% |
Rottweil R 907 | <<locked>> | 81% | 46905 | 72% | **63 | 98% |
SNPE Vectan SP 11 | <<locked>> | 81% | 53026 | 82% | **00 | 100% |
SNPE Vectan Tubal 5000 | <<locked>> | 81% | 51532 | 79% | **30 | 100% |
SNPE Vectan Tubal 7000 | <<locked>> | 81% | 44918 | 69% | **77 | 98% |
Shooters World Long Rifle | <<locked>> | 81% | 45658 | 70% | **33 | 99% |
Somchem S355 | <<locked>> | 81% | 50691 | 78% | **31 | 100% |
[Somchem S361]* | <<locked>> | 81% | 38986 | 60% | **56 | 92% |
Somchem S365 | <<locked>> | 81% | 39842 | 61% | **77 | 100% |
[Somchem S385]* | <<locked>> | 81% | 36172 | 56% | **43 | 94% |
Vihtavuori N135 | <<locked>> | 81% | 49081 | 76% | **33 | 100% |
Vihtavuori N150 | <<locked>> | 81% | 43337 | 67% | **61 | 100% |
Vihtavuori N160 | <<locked>> | 81% | 46833 | 72% | **69 | 100% |
[Vihtavuori N165]* | <<locked>> | 81% | 30110 | 46% | **66 | 90% |
Vihtavuori N550 | <<locked>> | 81% | 47195 | 73% | **12 | 100% |
Vihtavuori N555 | <<locked>> | 81% | 34055 | 52% | **46 | 97% |
[Vihtavuori N560]* | <<locked>> | 84% | 36289 | 56% | **15 | 90% |
[Vihtavuori N565]* | <<locked>> | 88% | 35157 | 54% | **56 | 90% |
[Vihtavuori N568]* | <<locked>> | 94% | 38870 | 60% | **74 | 90% |
Winchester 6.5 StaBALL | <<locked>> | 81% | 44251 | 68% | **90 | 100% |
Winchester 760 | <<locked>> | 81% | 50125 | 77% | **74 | 99% |
Winchester StaBALL HD | <<locked>> | 81% | 25875 | 40% | **28 | 97% |
Start Load - Barrel Length: 23.60''
Any powder missing? Then click here.
FR ... fill rate of the cartridge in percent
MaxP ... max. pressure of load in psi or bar
% ... max. pressure of load in percent of the maximum allowed pressure for this caliber
V(0) ... muzzle velocity in feet per second (fps) or meters per second (m/s)
z ... powder burnt in percent
[...] *... not dangerous but load has suboptimal powder burnt with possible characteristics such as extensive muzzle flash or inaccurate loads.
[...] ²... fill rate low - you might want to consider using a filler to ensure proper ignition.
[...] ᴾ... possible press load - work up slowly to this load while watching for signs of excessive pressure.
👍 ... recommended powder/load for this caliber and bullet combination based on its ballistic performance.