top of page

Load data for .270 Win. Ackley Improved + .277 | 100gr | Hornady GMX

Recommended Powder(s): Alliant Power Pro 2000-MR, IMR 4895, Ramshot Big Game, ReloadSwiss RS 52, ReloadSwiss RS 60

.270 Win. Ackley Improved + .277 | 100gr | Hornady GMX

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.277 | 100gr | Hornady GMX
Manufacturer SKU:
27190
Bullet Weight:
100gr | 6.5g
Bullet Diameter:
0.277" | 7.04mm
Bullet Length:
<<locked>>
Caliber:
.270 Win. Ackley Improved load data
Case Length (l3):
2.540" | 64.5mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
Case Capacity:
70.0 Grains of Water | 4.55 cm³
Primer Size:
Large Rifle (LR)
Max. allowed Pressure:
72519 psi | 5000 bar
LID:
LID_B2602_C272
Last updated:
2026-03-21
Recommended Twist Rate:
1:11 - 1:10

Load data for 220 loads in caliber .270 Win. Ackley Improved with .277 | 100gr | Hornady GMX bullet and 110 powders such as Alliant Power Pro 2000-MR, IMR 4895, Ramshot Big Game, ReloadSwiss RS 52, ReloadSwiss RS 60. 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".

  • No data yet

  • We recommend you limit powder range to relevant brands to speed up re-calculation of results

    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.

    .

    Loading_icon.gif

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 APS 450
<<locked>>
87%
64803
89%
**97
101%
ADI AR 2206H
<<locked>>
93%
65151
90%
**91
100%
ADI AR 2208
<<locked>>
97%
61046
84%
**12
99%
ADI AR 2219
<<locked>>
84%
64992
90%
**38
100%
ADI Benchmark 8208
<<locked>>
92%
64963
90%
**51
100%
Accurate 2015
<<locked>>
90%
64484
89%
**66
100%
Accurate 2200
<<locked>>
91%
64107
88%
**32
99%
Accurate 2230
<<locked>>
87%
64411
89%
**22
100%
Accurate 2460
<<locked>>
87%
64411
89%
**25
100%
Accurate 2495
<<locked>>
92%
64368
89%
**32
100%
Accurate 2520
<<locked>>
91%
64150
88%
**51
100%
Accurate 2700
<<locked>>
97%
60220
83%
**04
96%
Accurate 4064
<<locked>>
97%
62555
86%
**28
100%
Accurate 4350
<<locked>>
96%
47108
65%
**28
97%
Alliant AR-Comp
<<locked>>
92%
65180
90%
**15
100%
Alliant Power Pro 2000-MR 👍
<<locked>>
95%
65224
90%
**25
100%
Alliant Reloder- TS 15.5
<<locked>>
97%
60205
83%
**25
100%
Alliant Reloder-10x
<<locked>>
87%
64194
89%
**79
100%
Alliant Reloder-15
<<locked>>
96%
64121
88%
**97
100%
Alliant Reloder-16
<<locked>>
97%
46731
64%
**51
97%
Alliant Reloder-17
<<locked>>
97%
54462
75%
**28
100%
[Alliant Reloder-23]*
<<locked>>
97%
33069
46%
**07
93%
Baschieri & Pellagri 106
<<locked>>
86%
64992
90%
**23
100%
Baschieri & Pellagri 107
<<locked>>
93%
64281
89%
**88
99%
Bofors RP3
<<locked>>
97%
61859
85%
**55
100%
Bofors RP7
<<locked>>
97%
54389
75%
**71
95%
Hodgdon BL-C2
<<locked>>
91%
64484
89%
**94
100%
Hodgdon Benchmark
<<locked>>
91%
64861
89%
**02
100%
Hodgdon CFE223
<<locked>>
96%
65006
90%
**30
100%
Hodgdon H322
<<locked>>
90%
64992
90%
**38
100%
Hodgdon H335
<<locked>>
85%
64846
89%
**45
100%
Hodgdon H380
<<locked>>
97%
63266
87%
**68
99%
Hodgdon H414
<<locked>>
97%
56246
78%
**96
96%
Hodgdon H4198
<<locked>>
85%
64774
89%
**56
100%
[Hodgdon H4350]*
<<locked>>
97%
45382
63%
**10
92%
Hodgdon H4895
<<locked>>
93%
64774
89%
**88
100%
Hodgdon Hybrid 100V
<<locked>>
97%
43062
59%
**17
98%
Hodgdon LVR
<<locked>>
96%
51343
71%
**01
97%
[Hodgdon Superperformance]*
<<locked>>
97%
52199
72%
**30
94%
Hodgdon VARGET
<<locked>>
97%
60524
83%
**96
99%
Hodgdon TrailBoss
<<locked>>
96%
33054
46%
**51
100%
IMR 3031
<<locked>>
96%
63991
88%
**61
100%
IMR 4064
<<locked>>
97%
59190
82%
**73
99%
IMR 4166 Enduron
<<locked>>
96%
58334
80%
**23
96%
IMR 4198
<<locked>>
87%
64556
89%
**43
100%
[IMR 4350]*
<<locked>>
97%
47805
66%
**59
93%
IMR 4451 Enduron
<<locked>>
97%
56405
78%
**17
96%
IMR 4831
<<locked>>
96%
39871
55%
**48
95%
IMR 4895 👍
<<locked>>
95%
64759
89%
**20
100%
IMR 8208 XBR
<<locked>>
92%
64963
90%
**51
100%
Lovex D073.4
<<locked>>
86%
65238
90%
**25
100%
Lovex D073.5
<<locked>>
87%
64788
89%
**25
100%
Lovex D073.6
<<locked>>
93%
64150
88%
**51
100%
Lovex S060
<<locked>>
94%
65064
90%
**15
100%
Lovex S062
<<locked>>
97%
63788
88%
**38
100%
Lovex S065
<<locked>>
97%
52315
72%
**48
97%
[Lovex S070]*
<<locked>>
97%
49153
68%
**02
94%
Norma 200
<<locked>>
84%
65108
90%
**66
100%
Norma 201
<<locked>>
94%
64803
89%
**48
100%
Norma 202
<<locked>>
94%
65267
90%
**42
100%
Norma 203B
<<locked>>
96%
64136
88%
**91
100%
Norma URP
<<locked>>
97%
47050
65%
**32
97%
Ramshot Big Game 👍
<<locked>>
96%
64701
89%
**07
100%
Ramshot Hunter
<<locked>>
97%
46804
65%
**12
95%
Ramshot TAC
<<locked>>
91%
64353
89%
**51
99%
Ramshot Wild Boar
<<locked>>
92%
65064
90%
**84
100%
Ramshot X-Terminator
<<locked>>
89%
64266
89%
**22
100%
ReloadSwiss RS 14
<<locked>>
96%
33185
46%
**96
100%
ReloadSwiss RS 40
<<locked>>
88%
65209
90%
**45
100%
ReloadSwiss RS 50
<<locked>>
97%
63788
88%
**48
98%
ReloadSwiss RS 52 👍
<<locked>>
94%
65267
90%
**86
100%
ReloadSwiss RS 60 👍
<<locked>>
97%
58044
80%
**07
100%
ReloadSwiss RS 62
<<locked>>
97%
47514
66%
**64
97%
ReloadSwiss RS 70
<<locked>>
97%
48066
66%
**87
96%
Rottweil R 901
<<locked>>
92%
64484
89%
**22
100%
Rottweil R 902
<<locked>>
96%
64455
89%
**28
100%
Rottweil R 903
<<locked>>
97%
56942
79%
**66
100%
Rottweil R 907
<<locked>>
97%
54389
75%
**71
95%
SNPE Vectan BA6 1/2
<<locked>>
85%
64629
89%
**51
100%
SNPE Vectan SP 10
<<locked>>
84%
64687
89%
**48
100%
SNPE Vectan SP 11
<<locked>>
97%
60365
83%
**58
100%
SNPE Vectan SP 7
<<locked>>
92%
64194
89%
**45
99%
SNPE Vectan SP 9
<<locked>>
94%
64977
90%
**74
100%
SNPE Vectan Tubal 3000
<<locked>>
93%
64165
88%
**53
100%
SNPE Vectan Tubal 5000
<<locked>>
97%
60162
83%
**84
100%
SNPE Vectan Tubal 7000
<<locked>>
97%
52910
73%
**99
95%
Shooters World Long Rifle
<<locked>>
97%
52315
72%
**48
97%
Shooters World Match Rifle
<<locked>>
93%
64150
88%
**51
100%
Shooters World Precision
<<locked>>
97%
63788
88%
**38
100%
Shooters World Tactical Rifle
<<locked>>
86%
64687
89%
**02
100%
Somchem S321
<<locked>>
89%
64934
90%
**61
100%
Somchem S335
<<locked>>
94%
64919
90%
**60
100%
Somchem S341
<<locked>>
92%
64484
89%
**42
100%
Somchem S355
<<locked>>
97%
57986
80%
**73
100%
Somchem S365
<<locked>>
97%
41858
58%
**69
99%
Vihtavuori N120
<<locked>>
85%
65253
90%
**64
100%
Vihtavuori N130
<<locked>>
90%
65021
90%
**30
100%
Vihtavuori N133
<<locked>>
96%
64629
89%
**43
100%
Vihtavuori N135
<<locked>>
97%
54940
76%
**64
100%
Vihtavuori N140
<<locked>>
96%
65151
90%
**06
100%
Vihtavuori N150
<<locked>>
97%
48849
67%
**76
100%
Vihtavuori N160
<<locked>>
97%
52141
72%
**84
98%
Vihtavuori N530
<<locked>>
90%
64484
89%
**65
100%
Vihtavuori N540
<<locked>>
96%
64397
89%
**28
100%
Vihtavuori N550
<<locked>>
97%
52634
73%
**27
98%
[Vihtavuori N555]*
<<locked>>
97%
35070
48%
**82
93%
Winchester 6.5 StaBALL
<<locked>>
97%
50908
70%
**32
99%
Winchester 748
<<locked>>
89%
64817
89%
**97
100%
Winchester 760
<<locked>>
97%
56246
78%
**96
96%
Winchester StaBALL Match
<<locked>>
87%
65180
90%
**94
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI APS 450
<<locked>>
81%
58639
81%
**02
100%
ADI AR 2206H
<<locked>>
81%
43613
60%
**04
97%
[ADI AR 2208]*
<<locked>>
81%
36753
51%
**10
94%
ADI AR 2219
<<locked>>
81%
57711
80%
**37
100%
ADI Benchmark 8208
<<locked>>
81%
45847
63%
**23
99%
Accurate 2015
<<locked>>
81%
49066
68%
**36
100%
Accurate 2200
<<locked>>
81%
45571
63%
**07
96%
Accurate 2230
<<locked>>
81%
52330
72%
**32
99%
Accurate 2460
<<locked>>
81%
52344
72%
**28
100%
Accurate 2495
<<locked>>
81%
44092
61%
**14
100%
Accurate 2520
<<locked>>
81%
45252
62%
**36
100%
[Accurate 2700]*
<<locked>>
85%
40930
56%
**43
90%
Accurate 4064
<<locked>>
81%
36869
51%
**46
99%
[Accurate 4350]*
<<locked>>
85%
30501
42%
**15
90%
Alliant AR-Comp
<<locked>>
81%
45295
62%
**23
100%
Alliant Power Pro 2000-MR
<<locked>>
81%
39566
55%
**04
95%
Alliant Reloder- TS 15.5
<<locked>>
81%
36056
50%
**33
96%
Alliant Reloder-10x
<<locked>>
81%
53345
74%
**25
100%
Alliant Reloder-15
<<locked>>
81%
39218
54%
**15
95%
[Alliant Reloder-16]*
<<locked>>
85%
32155
44%
**48
90%
[Alliant Reloder-17]*
<<locked>>
81%
31328
43%
**61
92%
[Alliant Reloder-23]*
<<locked>>
93%
28863
40%
**59
90%
Baschieri & Pellagri 106
<<locked>>
81%
55666
77%
**89
100%
Baschieri & Pellagri 107
<<locked>>
81%
42931
59%
**97
96%
Bofors RP3
<<locked>>
81%
35708
49%
**36
96%
[Bofors RP7]*
<<locked>>
87%
40176
55%
**79
90%
Hodgdon BL-C2
<<locked>>
81%
44991
62%
**50
99%
Hodgdon Benchmark
<<locked>>
81%
47645
66%
**20
99%
[Hodgdon CFE223]*
<<locked>>
81%
37507
52%
**02
94%
Hodgdon H322
<<locked>>
81%
48399
67%
**79
100%
Hodgdon H335
<<locked>>
81%
56695
78%
**23
100%
[Hodgdon H380]*
<<locked>>
81%
36898
51%
**43
93%
[Hodgdon H414]*
<<locked>>
86%
38392
53%
**12
90%
Hodgdon H4198
<<locked>>
81%
57580
79%
**58
100%
[Hodgdon H4350]*
<<locked>>
93%
40422
56%
**05
90%
Hodgdon H4895
<<locked>>
81%
43976
61%
**23
98%
[Hodgdon Hybrid 100V]*
<<locked>>
84%
27746
38%
**87
90%
[Hodgdon LVR]*
<<locked>>
84%
33214
46%
**71
90%
[Hodgdon Superperformance]*
<<locked>>
90%
41060
57%
**87
90%
[Hodgdon VARGET]*
<<locked>>
81%
36492
50%
**07
94%
Hodgdon TrailBoss
<<locked>>
81%
26165
36%
**83
100%
IMR 3031
<<locked>>
81%
39421
54%
**45
100%
[IMR 4064]*
<<locked>>
81%
35882
49%
**87
94%
[IMR 4166 Enduron]*
<<locked>>
83%
38493
53%
**13
90%
IMR 4198
<<locked>>
81%
53330
74%
**82
100%
[IMR 4350]*
<<locked>>
91%
40335
56%
**02
90%
[IMR 4451 Enduron]*
<<locked>>
85%
38537
53%
**36
90%
[IMR 4831]*
<<locked>>
89%
30980
43%
**15
91%
IMR 4895
<<locked>>
81%
40234
55%
**48
96%
IMR 8208 XBR
<<locked>>
81%
45847
63%
**23
99%
Lovex D073.4
<<locked>>
81%
54056
75%
**58
100%
Lovex D073.5
<<locked>>
81%
51982
72%
**25
100%
Lovex D073.6
<<locked>>
81%
42134
58%
**74
99%
Lovex S060
<<locked>>
81%
43816
60%
**41
97%
Lovex S062
<<locked>>
81%
38348
53%
**63
97%
[Lovex S065]*
<<locked>>
84%
34229
47%
**31
90%
[Lovex S070]*
<<locked>>
88%
37565
52%
**33
90%
Norma 200
<<locked>>
81%
59901
83%
**91
100%
Norma 201
<<locked>>
81%
42569
59%
**58
98%
Norma 202
<<locked>>
81%
42670
59%
**61
100%
Norma 203B
<<locked>>
81%
38479
53%
**99
96%
[Norma URP]*
<<locked>>
85%
31256
43%
**18
90%
Ramshot Big Game
<<locked>>
81%
38130
53%
**02
95%
[Ramshot Hunter]*
<<locked>>
89%
36318
50%
**59
90%
Ramshot TAC
<<locked>>
81%
45730
63%
**07
95%
Ramshot Wild Boar
<<locked>>
81%
44991
62%
**40
98%
Ramshot X-Terminator
<<locked>>
81%
49734
69%
**82
98%
ReloadSwiss RS 14
<<locked>>
81%
26397
36%
**26
100%
ReloadSwiss RS 40
<<locked>>
81%
51474
71%
**25
100%
[ReloadSwiss RS 50]*
<<locked>>
81%
37362
52%
**23
91%
ReloadSwiss RS 52
<<locked>>
81%
40930
56%
**27
96%
ReloadSwiss RS 60
<<locked>>
81%
33373
46%
**46
97%
[ReloadSwiss RS 62]*
<<locked>>
86%
32169
44%
**77
90%
[ReloadSwiss RS 70]*
<<locked>>
88%
35505
49%
**53
90%
Rottweil R 901
<<locked>>
81%
46282
64%
**10
100%
Rottweil R 902
<<locked>>
81%
40205
55%
**86
98%
[Rottweil R 903]*
<<locked>>
81%
33315
46%
**58
94%
[Rottweil R 907]*
<<locked>>
87%
40176
55%
**79
90%
SNPE Vectan BA6 1/2
<<locked>>
81%
58595
81%
**72
100%
SNPE Vectan SP 10
<<locked>>
81%
57740
80%
**37
100%
[SNPE Vectan SP 11]*
<<locked>>
81%
34751
48%
**20
94%
SNPE Vectan SP 7
<<locked>>
81%
43990
61%
**77
95%
SNPE Vectan SP 9
<<locked>>
81%
42047
58%
**54
97%
SNPE Vectan Tubal 3000
<<locked>>
81%
43801
60%
**18
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
36172
50%
**48
99%
[SNPE Vectan Tubal 7000]*
<<locked>>
87%
37550
52%
**71
90%
[Shooters World Long Rifle]*
<<locked>>
84%
34229
47%
**31
90%
Shooters World Match Rifle
<<locked>>
81%
42134
58%
**74
99%
Shooters World Precision
<<locked>>
81%
38348
53%
**63
97%
Shooters World Tactical Rifle
<<locked>>
81%
54476
75%
**55
100%
Somchem S321
<<locked>>
81%
49806
69%
**19
99%
Somchem S335
<<locked>>
81%
43671
60%
**15
100%
Somchem S341
<<locked>>
81%
43772
60%
**81
97%
Somchem S355
<<locked>>
81%
34418
47%
**74
95%
[Somchem S365]*
<<locked>>
82%
25599
35%
**64
90%
Vihtavuori N120
<<locked>>
81%
57014
79%
**53
100%
Vihtavuori N130
<<locked>>
81%
48776
67%
**97
100%
Vihtavuori N133
<<locked>>
81%
41321
57%
**63
100%
Vihtavuori N135
<<locked>>
81%
33141
46%
**31
99%
Vihtavuori N140
<<locked>>
81%
39682
55%
**69
99%
[Vihtavuori N150]*
<<locked>>
81%
29211
40%
**07
94%
[Vihtavuori N160]*
<<locked>>
82%
31314
43%
**95
90%
Vihtavuori N530
<<locked>>
81%
48037
66%
**79
99%
Vihtavuori N540
<<locked>>
81%
39581
55%
**99
99%
[Vihtavuori N550]*
<<locked>>
82%
31734
44%
**41
90%
[Vihtavuori N555]*
<<locked>>
92%
29849
41%
**28
90%
[Winchester 6.5 StaBALL]*
<<locked>>
81%
29399
41%
**94
92%
Winchester 748
<<locked>>
81%
49385
68%
**45
100%
[Winchester 760]*
<<locked>>
86%
38392
53%
**12
90%
Winchester StaBALL Match
<<locked>>
81%
52286
72%
**87
99%

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.

<<locked>>... you need to buy an access license to unlock the data

bottom of page