| BULLET |
POWDER |
GR |
VEL |
PRESSURE |
|
|
270
WINCHESTER SHORT MAGNUM |
CASE: WINCHESTER |
|
BBL: 24" |
PR: WINCHESTER LRM |
| TWIST: 1:10" |
TRIM: 2.090" |
|

|
|
90
GR. SIE HP (Starting
Loads) |
DIA. .277 |
COL: 2.700" |
| |
H4831 |
69.0 |
3525 |
54,900 PSI |
| |
H4350 |
64.0 |
3568 |
55,000 PSI |
| |
H414 |
64.0 |
3609 |
54,800 PSI |
| |
H380 |
62.0 |
3561 |
56,200 PSI |
| |
VARGET |
57.0 |
3610 |
57,600 PSI |
| |
H4895 |
53.0 |
3508 |
52,900 PSI |
|
90
GR. SIE HP (Maximum
Loads) |
DIA. .277 |
COL: 2.700" |
| |
H4831 |
73.0C |
3703 |
63,400 PSI |
| |
H4350 |
67.5 |
3733 |
62,800 PSI |
| |
H414 |
68.0 |
3789 |
63,400 PSI |
| |
H380 |
65.5 |
3711 |
62,900 PSI |
| |
VARGET |
60.5 |
3734 |
62,800 PSI |
| |
H4895 |
56.5 |
3690 |
62,500 PSI |
|

|
|
100
GR. SPR HP (Starting Loads) |
DIA. .277 |
COL: 2.700" |
| |
H4831 |
67.0 |
3352 |
52,900 PSI |
| |
H4350 |
62.0 |
3458 |
55,000 PSI |
| |
H414 |
62.0 |
3451 |
54,600 PSI |
| |
H380 |
60.0 |
3361 |
54,300 PSI |
| |
VARGET |
55.0 |
3416 |
55,700 PSI |
| |
H4895 |
51.0 |
3338 |
53,200 PSI |
|
100
GR. SPR HP (Maximum Loads) |
DIA. .277 |
COL: 2.700" |
| |
H4831 |
71.0C |
3542 |
62,700 PSI |
| |
H4350 |
65.5 |
3585 |
62,900 PSI |
| |
H414 |
65.0 |
3613 |
63,000 PSI |
| |
H380 |
63.5 |
3518 |
62,600 PSI |
| |
VARGET |
58.5 |
3573 |
63,300 PSI |
| |
H4895 |
54.5 |
3505 |
62,500 PSI |
|

|
|
110
GR. HDY HP (Starting Loads) |
DIA. .277 |
COL: 2.800" |
| |
H1000 |
71.0 |
3279 |
55,400 PSI |
| |
H4831 |
64.0 |
3265 |
56,300 PSI |
| |
H4350 |
59.0 |
3287 |
55,900 PSI |
| |
H414 |
59.0 |
3283 |
55,600 PSI |
| |
H380 |
55.0 |
3173 |
56,300 PSI |
| |
VARGET |
53.0 |
3276 |
57,000 PSI |
|
110
GR. HDY HP (Maximum Loads) |
DIA. .277 |
COL: 2.800" |
| |
H1000 |
73.0C |
3360 |
60,400 PSI |
| |
H4831 |
67.5 |
3404 |
63,000 PSI |
| |
H4350 |
63.0 |
3436 |
63,200 PSI |
| |
H414 |
62.5 |
3435 |
62,800 PSI |
| |
H380 |
59.0 |
3327 |
62,900 PSI |
| |
VARGET |
56.0 |
3406 |
63,200 PSI |
|

|
|
120
GR. BAR XFB (Starting Loads) |
DIA. .277 |
COL: 2.775" |
| |
H1000 |
69.0 |
3176 |
57,600 PSI |
| |
H4831 |
62.0 |
3120 |
57,000 PSI |
| |
H4350 |
57.0 |
3120 |
55,900 PSI |
| |
H414 |
58.0 |
3158 |
56,600 PSI |
| |
H380 |
54.0 |
3005 |
55,900 PSI |
| |
VARGET |
51.0 |
3079 |
56,400 PSI |
|
120
GR. BAR XFB (Maximum Loads) |
DIA. .277 |
COL: 2.775" |
| |
H1000 |
72.5C |
3292 |
63,100 PSI |
| |
H4831 |
65.5 |
3257 |
63,200 PSI |
| |
H4350 |
60.5 |
3267 |
63,200 PSI |
| |
H414 |
61.5 |
3309 |
63,300 PSI |
| |
H380 |
57.0 |
3155 |
62,900 PSI |
| |
VARGET |
53.5 |
3222 |
63,100 PSI |
|

|
|
130
GR. HDY SP (Starting Loads) |
DIA. .277 |
COL: 2.730" |
| |
H1000 |
71.0 |
3100 |
55,400 PSI |
| |
H4831 |
63.0 |
3085 |
56,300 PSI |
| |
H4350 |
57.0 |
3093 |
56,600 PSI |
| |
H414 |
57.0 |
3065 |
53,800 PSI |
| |
H380 |
56.0 |
3032 |
56,100 PSI |
| |
VARGET |
51.0 |
3040 |
56,400 PSI |
|
130
GR. HDY SP (Maximum Loads) |
DIA. .277 |
COL: 2.730" |
| |
H1000 |
73.0C |
3168 |
58,700 PSI |
| |
H4831 |
67.0 |
3228 |
63,400 PSI |
| |
H4350 |
60.5 |
3226 |
63,500 PSI |
| |
H414 |
61.0 |
3235 |
62,700 PSI |
| |
H380 |
59.5 |
3174 |
63,200 PSI |
| |
VARGET |
54.0 |
3169 |
63,200 PSI |
|

|
|
135
GR. SIE HPBT (Starting Loads) |
DIA. .277 |
COL: 2.840" |
| |
H1000 |
69.0 |
3056 |
54,400 PSI |
| |
H4831 |
62.0 |
3056 |
55,400 PSI |
| |
H4350 |
58.0 |
3093 |
57,000 PSI |
| |
H414 |
57.0 |
3041 |
54,000 PSI |
| |
H380 |
55.0 |
2943 |
52,800 PSI |
| |
VARGET |
51.0 |
3000 |
54,800 PSI |
|
135
GR. SIE HPBT (Maximum Loads) |
DIA. .277 |
COL: 2.840" |
| |
H1000 |
73.0C |
3205 |
62,600 PSI |
| |
H4831 |
65.5 |
3192 |
62,900 PSI |
| |
H4350 |
61.5 |
3211 |
63,100 PSI |
| |
H414 |
61.0 |
3208 |
63,200 PSI |
| |
H380 |
58.0 |
3116 |
63,000 PSI |
| |
VARGET |
54.0 |
3134 |
63,000 PSI |
|

|
|
140
GR. SFT SP (Starting Loads) |
DIA. .277 |
COL: 2.800" |
| |
RETUMBO |
68.0 |
3016 |
53,200 PSI |
| |
H1000 |
66.0 |
2984 |
55,700 PSI |
| |
H4381 |
59.0 |
2974 |
57,000 PSI |
| |
H4350 |
54.0 |
2928 |
54,500 PSI |
| |
H414 |
55.0 |
2932 |
53,700 PSI |
| |
H380 |
53.0 |
2865 |
55,500 PSI |
|
140
GR. SFT SP (Maximum Loads) |
DIA. .277 |
COL: 2.800" |
| |
RETUMBO |
71.0C |
3165 |
61,300 PSI |
| |
H1000 |
70.0C |
3137 |
63,500 PSI |
| |
H4831 |
62.5 |
3085 |
63,000 PSI |
| |
H4350 |
58.0 |
3087 |
63,100 PSI |
| |
H414 |
58.0 |
3068 |
62,600 PSI |
| |
H380 |
56.5 |
3005 |
62,700 PSI |
|

|
|
150
GR. HDY SP (Starting Loads) |
DIA. .277 |
COL: 2.740" |
| |
RETUMBO |
66.0 |
2908 |
53,300 PSI |
| |
H1000 |
64.0 |
2864 |
54,600 PSI |
| |
H4831 |
56.0 |
2804 |
54,500 PSI |
| |
H4350 |
53.0 |
2846 |
55,600 PSI |
| |
H414 |
54.0 |
2845 |
55,400 PSI |
| |
H380 |
51.0 |
2749 |
56,700 PSI |
|
150
GR. HDY SP (Maximum Loads) |
DIA. .277 |
COL: 2.740" |
| |
RETUMBO |
70.0C |
3071 |
63,000 PSI |
| |
H1000 |
67.5C |
3001 |
62,800 PSI |
| |
H4831 |
60.0 |
2962 |
63,100 PSI |
| |
H4350 |
56.5 |
2978 |
63,000 PSI |
| |
H414 |
57.5 |
2991 |
63,200 PSI |
| |
H380 |
54.5 |
2885 |
63,100 PSI |
|

|
|
160
GR. NOS PART (Starting Loads) |
DIA. .277 |
COL: 2.830" |
| |
RETUMBO |
65.0 |
2826 |
53,400 PSI |
| |
H1000 |
63.0 |
2802 |
57,400 PSI |
| |
H4831 |
57.0 |
2784 |
58,400 PSI |
| |
H4350 |
52.0 |
2735 |
56,100 PSI |
| |
H414 |
52.0 |
2718 |
56,100 PSI |
|
160
GR. NOS PART (Maximum Loads) |
DIA. .277 |
COL: 2.830" |
| |
RETUMBO |
68.5 |
2989 |
62,600 PSI |
| |
H1000 |
66.5 |
2913 |
63,200 PSI |
| |
H4831 |
60.0 |
2877 |
63,300 PSI |
| |
H4350 |
55.0 |
2834 |
62,600 PSI |
| |
H414 |
55.5 |
2844 |
63,100 PSI |
|

|
|
180 GR.
BAR JRN (Starting Loads) |
DIA. .277 |
COL: 2.700" |
| |
H50BMG |
67.0 |
2565 |
49,800 PSI |
| |
RETUMBO |
62.0 |
2631 |
50,900 PSI |
| |
H1000 |
59.0 |
2590 |
56,000 PSI |
| |
H4831 |
53.0 |
2561 |
56,300 PSI |
|
180 GR.
BAR JRN (Maximum Loads) |
DIA. .277 |
COL: 2.700" |
| |
H50BMG |
70.0C |
2732 |
61,700 PSI |
| |
RETUMBO |
65.0C |
2811 |
63,000 PSI |
| |
H1000 |
63.0 |
2718 |
62,800 PSI |
| |
H4831 |
56.0 |
2667 |
62,800 PSI |
|

|
| C = Compressed Charge |
|