msrdiver 42 Posted March 12, 2011 Report Share Posted March 12, 2011 I'll keep this as simple as possible. I used a Lee Load All II press. I used cheap Federal/Estate target load hulls, the kind with paper base wads, that I know were dry. These are straight wall hulls which help keep the pressure lower. I had to tap the powder bushing to drop all the 800X. 800X seems to stick to plastic bushing without tapping. The wad was trimmed just below 1/2 of the Round Ball. There is enough petal(s) remaining to guide the RB down barrel. The RB was made using a Lyman's mold. The average RB weighs 492 grains (1.12 ounces). So here is recipe and results: Hull: Federal/Estate with paper base wad (dry) Primer: Fiocchi 616 800X: 28.2 grains Wad: Federal S3 (trimmed petals) Felt: One 1/8" felt in wad under RB (weighs 10 grains) .690 RB: 492 grains OSC: One thin Over Shot Card (20 gauge) to help even the 8 point crimp F.P.S. and P.S.I. 1361 and 8100 1342 and 7900 1326 and 7400 1335 and 7800 -------------------- 1341 and 7800 These results were out of a 30" Krieger test barrel. So expect about 77 fps less velocity out of a 19" bbl. Quote Link to post Share on other sites
Bagelthief 1 Posted March 12, 2011 Report Share Posted March 12, 2011 How did you measure the pressure? Quote Link to post Share on other sites
msrdiver 42 Posted March 12, 2011 Author Report Share Posted March 12, 2011 OK. I must confess, I didn't measure the pressure. Tom Armbrust measured the pressure and velocity. Tom's equipment at Ballistics Research includes the following: SkyScreen III Krieger test barrel barrel is 30" Skeet Bore is .727 The pressure transducer make and model I can not determine. I can only read the serial number of the unit. I send all my loads to Tom for testing. He charges $5 per shell tested. I had a primer fail a while back and he didn't charge me for the test but allowed me to resend a shell with my next set to be tested. http://www.armbrust.acf2.org/ Quote Link to post Share on other sites
msrdiver 42 Posted March 12, 2011 Author Report Share Posted March 12, 2011 Almost seventy views and only one response? That's shocking. Quote Link to post Share on other sites
lbsrdi 1,078 Posted March 13, 2011 Report Share Posted March 13, 2011 Thanks for the recipe! Sounds good. Quote Link to post Share on other sites
ArnoldRot 0 Posted March 13, 2011 Report Share Posted March 13, 2011 (edited) Very cool! Can we get some destruction videos? For testing purposes, of course. Edited March 13, 2011 by Arnoldrot Quote Link to post Share on other sites
patriot 7,197 Posted March 13, 2011 Report Share Posted March 13, 2011 Nice specs. I do a similar black powder load that is NASTY, but it's not for gas guns. Quote Link to post Share on other sites
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