what went wrong

[Harry Collins]

Charlie,

I just checked the Alliant Relaoding Manual. Their max load for the Winchester Polyfomed with plastic base wad is 42.0 grains of Blue Dot, WW 209 primer, SP 10 wad and 2 1/4 oz of shot which yields 1165 fps and 10500 psi!

Harry

[charlie cleveland]

harry this is a very close load to the lymans load . do you think one grain of powder could have caused the problem.or do you think it could be the hulls. i know there can be a lot of speculations to the problems ive had with this load.i hope to find problem soon.will load up the load you posted and try it. i will also load up the lyman load and try it.thanks for the info. charlie

[Harry Collins]

Charlie,

If you have access to a chronograph, it may shed light on things. I would back off a little rather than tempt fate with 43 grains again.

Harry