MEC Bushing Chart by powder Manufacturer:

MEC Powder Bushings

The bushing chart does not represent recommended weights of charge. It is intended as a guide only to show the relationship of the volumetric capacity to the various bushings.

Note: The amount of powder thrown by bushings was calculated using single-stage reloaders. Single-stage machines will usually throw heavier charges than progressive reloading machines. Please verify powder loads by using an accurate scale.

Compatible Components: Primers, wads, powder charge and weight of the shot charge must be in accordance with the manufacturer's specifications. Handloader guides are available from the component manufacturer or possibly from your source of reloading components. We recommend that you use the data listed in the handloader guides. Because we have no control over the type, quality, or quantity of components used, we assume no responsibility relative to your reloading or finished shells.

Winchester Accurate Alliant
IMR   Hodgdon  Ramshot
Vihtavuori Oy   Adco  Powder Conversion Chart

 Winchester

Winchester

Bushing #

Super Target

296

Super Field

10

7.9

13.7

10.9

11

8.3

14.6

11.5

12

8.8

15.4

12.2

12A

9.3

16.3

12.9

13

9.8

17.2

13.6

13A

10.4

18.1

14.3

14

10.9

19.0

15.0

15

11.4

20.0

15.8

16

12.0

21.0

16.6

17

12.6

22.0

17.4

18

13.2

23.0

18.2

19

13.8

24.1

19.0

Bushing #

Super Target

296

Super Field

20

14.4

25.1

19.9

21

15.0

26.2

20.8

22

15.7

27.4

21.6

23

16.3

28.5

22.6

24

17.0

29.7

23.5

25

17.7

30.9

24.4

26

18.4

32.1

25.4

27

19.1

33.4

26.4

28

19.8

34.6

27.4

29

20.6

35.9

28.4

Bushing #

Super Target

296

Super Field

30

21.3

37.3

29.5

31

22.1

38.6

30.5

32

22.9

40.0

31.6

33

23.7

41.4

32.7

34

24.5

42.8

33.8

35

25.3

44.2

35.0

36

26.2

45.7

36.1

37

27.0

47.1

37.3

38

27.9

48.7

38.5

38A

28.8

50.2

39.7

39

29.7

51.7

40.9

39A

30.6

53.3

42.2

Bushing #

Super Target

296

Super Field

40

31.5

54.9

43.4

40A

32.4

56.6

44.7

41

33.4

58.2

46.0

41A

34.3

59.9

47.4

42

35.3

61.6

48.7

42A

36.3

63.3

50.1

43

37.3

65.0

51.5

43A

38.3

66.8

52.9

44

39.3

68.6

54.3

44A

40.4

70.4

55.7

45

41.4

72.3

57.2

45A

42.5

74.1

58.6

46

43.6

76.0

60.1

Top

IMR

IMR Powder

Bushing #

800X

700X

PB

7625

4756

4227

10

6.4

6.0

7.5

9.2

9.3

11.8

11

7.0

6.4

8.0

9.7

9.8

12.5

12

7.6

6.8

8.4

10.2

10.3

13.3

12A

8.0

7.2

8.8

10.7

10.8

14.0

13

8.6

7.6

9.3

11.2

11.3

14.8

13A

9.2

8.0

9.8

11.8

11.9

15.6

14

9.8

8.4

10.3

12.3

12.4

16.4

15

10.4

8.9

10.8

12.8

13.0

17.2

16

11.0

9.5

11.3

13.6

13.7

18.1

17

11.6

10.1

11.8

14.2

14.3

18.9

18

12.2

10.7

12.4

14.9

14.9

19.8

19

12.8

11.3

13.2

15.5

15.5

20.7

Bushing #

800X

700X

PB

7625

4756

4227

20

13.5

11.9

13.6

16.3

16.2

21.7

21

14.2

12.5

14.1

16.9

16.9

22.6

22

15.0

13.1

14.7

17.6

17.7

23.6

23

15.7

13.7

15.3

18.2

18.4

24.6

24

16.3

14.3

15.9

18.9

19.1

25.6

25

17.0

14.9

16.4

19.5

19.8

26.6

26

17.5

15.6

17.1

20.4

20.7

27.7

27

18.2

16.2

17.7

21.1

21.4

28.8

28

18.8

16.9

18.4

21.9

22.1

29.9

29

19.4

17.5

19.1

22.6

22.8

31.0

Bushing #

800X

700X

PB

7625

4756

4227

30

20.2

18.2

19.8

23.5

23.7

32.1

31

20.9

18.9

20.5

24.3

24.5

33.3

32

21.6

19.9

21.3

25.4

25.6

34.5

33

22.3

20.3

21.9

26.2

26.4

35.7

34

23.1

21.0

22.7

27.1

27.3

36.9

35

24.0

21.8

23.4

28.0

28.1

38.1

36

24.8

22.5

24.2

29.0

29.2

39.4

37

25.7

23.3

25.0

29.8

30.1

40.7

38

26.5

24.1

25.8

30.9

31.2

42.0

38A

27.3

24.9

26.6

31.8

32.2

43.3

39

28.1

25.7

27.3

32.7

33.1

44.6

39A

28.9

26.5

28.1

33.6

34.1

46.0

Bushing #

800X

700X

PB

7625

4756

4227

40

29.7

27.3

29.0

34.6

35.1

47.4

40A

30.4

28.1

29.7

35.5

36.0

48.8

41

31.6

29.0

30.7

36.4

37.0

50.2

41A

32.5

29.9

31.3

37.1

38.1

51.6

42

33.5

30.7

31.9

37.9

39.0

53.1

42A

34.8

31.6

32.5

38.9

40.0

54.6

43

35.7

32.5

33.1

39.9

41.0

56.1

43A

36.3

33.4

33.7

40.9

42.0

57.6

44

36.9

34.4

34.3

42.0

42.9

59.2

44A

37.5

35.6

34.9

43.0

43.8

60.7

45

38.1

36.2

35.5

44.1

44.7

62.3

45A

38.7

37.2