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WW748 vs BL-C

5mmgunguy5mmgunguy Member Posts: 3,092 ✭✭
edited October 2007 in Ask the Experts
Which powder is slower burning? WW 748 or BL-C?

Comments

  • perry shooterperry shooter Member Posts: 17,105 ✭✭✭
    edited November -1
    Hello I don't like to give loading information might do a typeo but a very good site is www.reloadbench.com/burn.html it give the burn rate of all powders. [:p][:p]
  • 1999diane1999diane Member Posts: 15 ✭✭
    edited November -1
    Hi! I would have to look, most reloading manuals have a burn-rate chart in them. Another place to look is Loaddata.com
  • dcs shootersdcs shooters Member Posts: 10,870 ✭✭✭
    edited November -1
    They are very close to the same rate. A chart I have shows 748 #93,BLC-2 #95, out of 153 on the chart. www.ramshot.com/powders/burnrate.php
  • nononsensenononsense Member Posts: 10,928 ✭✭✭✭
    edited November -1
    5mmgunguy,

    As pointed out, the two powders in question are very nearly the same IF you go by the Powder Burn Rate charts exclusively.

    Each powder is listed with a number but if several powders from different manufacturers have the same burn rate how do you discriminate between them? In the opposite thinking, powders have been released that are supposed to be the same as the previous lot number of the same powder and turn out to be decidedly faster or slower. Slower isn't usually a problem, however faster can be a real bad problem.

    These charts are big help when it comes to trying to make sense out of which powders are faster or slower in relationship to each other. But remember that they are to be used as general guidelines and NOT as absolutes. You cannot simply substitute adjacent powders, one for the other, without careful testing. I would go a step further and insist on checking the data from several reloading manuals and compare the loads to establish a line of characteristic velocities and pressures. Then you can get going by using the starting loads and working your way up slowing watching for signs of pressure.

    Best.
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