Hometek
04-10-2010, 05:38 PM
First the particulers. Walther p99 40sw, Lee 2-Cavity Bullet Mold TL401-175-SWC, WW lead, alox tumble lube, 4 gr reddot powder.
This the first casting for handgun boolits I've done. Been a long learning curve for me. Had FTF's at first. Solved that with seperate Lee crimper die. Took 100rds today to test on paper and had 4 out 12 keyhole. Accuracy was fair. Similar to WWB. What's interesting is that several of the xring hits were keyholes.
When I got home I decided to measure the boolits. Barrel slugs at .400 the best I can tell. Had trouble getting a good slug so I'm looking for some pure lead to try again. Boolits are measuring .404 to .405. I've ordered a lee sizing die kit to fix that.
I did asearch on here on keyholing and all the posts I read suggested it was undersized boolits that keyhole. Has anyone experienced keyholing with oversized boolits? Would the reddot powder be the culprit having a faster burn rate? I haven't been able to get my new chrony working consistently but when it appeared to be getting accurate readings (when known ammo fired read correctly) it was in the 950fps range.
This the first casting for handgun boolits I've done. Been a long learning curve for me. Had FTF's at first. Solved that with seperate Lee crimper die. Took 100rds today to test on paper and had 4 out 12 keyhole. Accuracy was fair. Similar to WWB. What's interesting is that several of the xring hits were keyholes.
When I got home I decided to measure the boolits. Barrel slugs at .400 the best I can tell. Had trouble getting a good slug so I'm looking for some pure lead to try again. Boolits are measuring .404 to .405. I've ordered a lee sizing die kit to fix that.
I did asearch on here on keyholing and all the posts I read suggested it was undersized boolits that keyhole. Has anyone experienced keyholing with oversized boolits? Would the reddot powder be the culprit having a faster burn rate? I haven't been able to get my new chrony working consistently but when it appeared to be getting accurate readings (when known ammo fired read correctly) it was in the 950fps range.