Special Interests - Groups & Societies > The Winchester Model 1876

Loading Data for the 45-60 WCF

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Silver_Rings:
These loads have not been tested for pressure so use at your own risk.  These loads are NOT for original 1876 rifles.

They were fired in a Chappy 1876 reproduction with 28" barrel.

Brass by Jamison
OAL 2.23 crimped over front driving band
Colorado Cast Bullets 300 gr hard cast rnfp bullet

Remington standard large rifle primers
alt 6100ft temp about 30

I'm now using a target in front of my chronograph and that has improved the consistency of the reading I am getting.

All of these loads are with a 1/2 x 1/2 x1/2" poly filler

Reloader 7 30.0 grns  Low 1383 high 1444 av 1410 spread 61

5744         27.5 grns  Low 1471 high 1493 av 1481 spread 22

I4198        28.0 grns  Low 1424 high 1479 av 1454 spread 55

I3031        33.0 grns  Low 1374 high 1384 av 1379 spread 10

 
These loads have not been tested for pressure so use at your own risk.


Silver Rings

OKDEE:
Interesting stats!  Thanks for stepping out on a warm day... ;D

I will recheck my loads, but it seemed on my Chaparral (22" barrel),  the powder 3031 was not the best by a long shot, when it came to accuracey and standard deviation.

I seem to remember that 24 grains of 5744 was the best and most accurate.

Great!

Oklahoma Dee

Silver_Rings:
Some new loads.

These loads have not been tested for pressure so use at your own risk.  These loads are NOT for original 1876 rifles.

They were fired in a Chappy 1876 reproduction with 28" barrel.

Brass by Jamison
OAL 2.23 crimped over front driving band
Colorado Cast Bullets 300 gr hard cast rnfp bullet

Remington standard large rifle primers
alt 6100ft temp about 50

I'm now using a target in front of my chronograph and that has improved the consistency of the reading I am getting.

All of these loads are with a 1/2 x 1/2 x1/2" poly filler

Reloader 7 31.0 grns  Low 1384 high 1457 av 1430 spread 73

5744         28.0 grns  Low 1499 high 1516 av 1508 spread 17

I4198        29.0 grns  Low 1486 high 1511 av 1497 spread 25

I3031        35.0 grns  Low 1422 high 1494 av 1458 spread 72

Benchmark 36.0 grns  Low 1404 high 1501 av 1464 spread 97

 
These loads have not been tested for pressure so use at your own risk.


SR

Silver_Rings:
Some new loads.

These loads have not been tested for pressure so use at your own risk.  These loads are NOT for original 1876 rifles.

They were fired in a Chappy 1876 reproduction with 28" barrel.

Brass by Jamison
OAL 2.26 crimped using Lee's professional crimp die
Colorado Cast Bullets 300 gr hard cast rnfp bullet

Remington standard large rifle primers
alt 6100ft temp about 55

I'm now using a target in front of my chronograph and that has improved the consistency of the reading I am getting.

All of these loads are with a 1/2 x 1/2 x1/2" poly filler

Reloader 7 32.0 grns  Low 1457 high 1474 av 1466 spread 17

5744         29.0 grns  Low 1520 high 1550 av 1534 spread 30

I4198        30.0 grns  Low 1561 high 1589 av 1575 spread 28

I3031        36.0 grns  Low 1452 high 1518 av 1491 spread 66

Benchmark 37.0 grns  Low 1498 high 1541 av 1523 spread 43

 
These loads have not been tested for pressure so use at your own risk.

Silver_Rings:
More loads

These loads have not been tested for pressure so use at your own risk.  These loads are NOT for original 1876 rifles.

They were fired in a Chappy 1876 reproduction with 28" barrel.

Brass by Jamison
OAL 2.23 crimped over front driving band
Colorado Cast Bullets 300 gr hard cast rnfp bullet

Remington standard large rifle primers
alt 6100ft temp about 60
I'm now using a target in front of my chronograph and that has improved the consistency of the reading I am getting.

Filler loads are with a 1/2 x 1/2 x1/2" poly filler

Reloader 7 (filler) 36.0 grns  Low 1606 high 1668 av 1642 spread 62

5744 (filler)         30.0 grns  Low 1591 high 1600 av 1596 spread 9

I4198 (filler)        31.0 grns  Low 1516 high 1635 av 1583 spread 119

I3031 (filler)        39.0 grns  Low 1618 high 1648 av 1633 spread 30

Benchmark          38.0 grns  Low 1293 high 1515 av 1416 spread 222

Benchmark          39.0 grns  Low 1370 high 1561 av 1496 spread 191

This weeks loads

Filler loads are with a 1/2 x 1/2 x1/2" poly filler

Reloader 7 (filler) 37.0 grns  Low 1541 high 1618 av 1584 spread 77

5744 (filler)         31.0 grns  Low 1544 high 1694 av 1636 spread 150

I4198 (filler)        32.0 grns  Low 1626 high 1668 av 1646 spread 42

Benchmark          40.0 grns  Low 1341 high 1483 av 1431 spread 142

Benchmark          41.0 grns  Low 1460 high 1631 av 1541 spread 171
 
Benchmark          42.0 grns  Low 1493 high 1648 av 1559 spread 155
 
These loads have not been tested for pressure so use at your own risk.

SR

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