gunoholic
01-26-2016, 07:48 PM
So I ran some tumble lubed Lee 309 230 through my 10.5" 300 blk, very economical, so much so I bought most of the lead home with me smeared inside the barrel[emoji34] .
So I ordered some powder coating powder. And while waiting I tried gas checking, dip lubed because the 45/45/10 is just messy.
Loaded up 50 and some 312-160gn.
Adi 2205 worked OK, but had a couple fail to lock on the last round and worse yet they were doing 1120fps. Not so sub sonic.
Ar2206h (h4895) the next slowest powder I had, functioned perfect, last round locked back every time (5rds at a time), 980fps and sd15. Lots of unburnt powder.
The 312 160gn were good at 1800fps with ar2205.
They all shot minute of chrony at 5 paces.
http://images.tapatalk-cdn.com/16/01/26/7dfc6e8c9a181c0c26ae0f132005ba73.jpg
Shake and bake powder coating worked really easy even though it was raining.
Does anyone see any advantage gas checking the powder coated boolits?
COWW sized to .310.
So I ordered some powder coating powder. And while waiting I tried gas checking, dip lubed because the 45/45/10 is just messy.
Loaded up 50 and some 312-160gn.
Adi 2205 worked OK, but had a couple fail to lock on the last round and worse yet they were doing 1120fps. Not so sub sonic.
Ar2206h (h4895) the next slowest powder I had, functioned perfect, last round locked back every time (5rds at a time), 980fps and sd15. Lots of unburnt powder.
The 312 160gn were good at 1800fps with ar2205.
They all shot minute of chrony at 5 paces.
http://images.tapatalk-cdn.com/16/01/26/7dfc6e8c9a181c0c26ae0f132005ba73.jpg
Shake and bake powder coating worked really easy even though it was raining.
Does anyone see any advantage gas checking the powder coated boolits?
COWW sized to .310.