I agree, these will help remove the crimp, but it's slow. A little faster if you Chuck it in a drill.
I just finished reaming out about 800 primers. After 2 weeks
Sooty 223 primer pocket
- Thread starter Akimbo223
- Start date
I just finished reaming out about 800 primers. After 2 weeks
I have a few thousand primers from my uncle's stuff. 1000 205m and 1000 cci br4 as well as several thousand large primers for which I have no use (for now 
) and various lesser amounts of other primers. Also, I notice using magnum primers had been mentioned several times. My understanding is that fed 205m and 7 1/2 are magnum. I guess ill have to grab a primer pocket reamer and up my pressures a bit.
Again thank you everyone, I truly appreciate all the help/ advice. There really is so much to learn.
) and various lesser amounts of other primers. Also, I notice using magnum primers had been mentioned several times. My understanding is that fed 205m and 7 1/2 are magnum. I guess ill have to grab a primer pocket reamer and up my pressures a bit. Again thank you everyone, I truly appreciate all the help/ advice. There really is so much to learn.
21.6 grains of BLC-2 is way below current minimum for a 60 grain bullet. Elderly manual?
"...not removing the crimp leak gasses..." Like Nick says, the primer pocket will be a tick out of round with a tiny bit of brass in the wrong place. Lets gasses escape.
Magnum primers are about the powders used and nothing else. They're for lighting hard to ignite powders and extreme cold weather shooting. They burn a bit hotter for a bit longer than regular primers. BlC2 doesn't need' em.
Isn't going to bother anything if you do use 'em though. Pressures might be a bit higher, but not enough to hurt anything.
7 1/2 primers are small rifle bench rest primers. Federal 205M's are Small Rifle match primers too. Never seen any difference using match primers myself.
"...really is so much to learn..." Read your manual. Read the reference chapters too.
"...not removing the crimp leak gasses..." Like Nick says, the primer pocket will be a tick out of round with a tiny bit of brass in the wrong place. Lets gasses escape.
Magnum primers are about the powders used and nothing else. They're for lighting hard to ignite powders and extreme cold weather shooting. They burn a bit hotter for a bit longer than regular primers. BlC2 doesn't need' em.
Isn't going to bother anything if you do use 'em though. Pressures might be a bit higher, but not enough to hurt anything.
7 1/2 primers are small rifle bench rest primers. Federal 205M's are Small Rifle match primers too. Never seen any difference using match primers myself.
"...really is so much to learn..." Read your manual. Read the reference chapters too.
Well, they are also for magnum cases. This article explains it.
In 2006 Charles Petty did some .223 loads with different primers and had a magnum one raise pressure about 10%. In large rifle it gets harder to tell the difference, but I would still back down a load 5% when you make the change and see how velocity compares. Comparing velocity on a chronograph is a good check if you can compare it to the original load side-by-side.
Akimbo223,
If you have a lot of cases to do, you might want to get a primer pocket swager rather than do all the cutting work. I've had good luck with my Dillon 600, but recommend getting the Inline Fabrication plastic inserts for it. RCBS has also come out with a bench swager, but I haven't tried it.
In 2006 Charles Petty did some .223 loads with different primers and had a magnum one raise pressure about 10%. In large rifle it gets harder to tell the difference, but I would still back down a load 5% when you make the change and see how velocity compares. Comparing velocity on a chronograph is a good check if you can compare it to the original load side-by-side.
Akimbo223,
If you have a lot of cases to do, you might want to get a primer pocket swager rather than do all the cutting work. I've had good luck with my Dillon 600, but recommend getting the Inline Fabrication plastic inserts for it. RCBS has also come out with a bench swager, but I haven't tried it.
I'll definitely have to look into that. I know I need a case trimmer. I had a bunch of 5.56 case that I hand trimmed by about .25" to get down to 1.750. That took some time.
The loads I'm making now are goong to be staggered with different powder charges so when I next go to the range I can try several different loads.
The loads I'm making now are goong to be staggered with different powder charges so when I next go to the range I can try several different loads.
Panfisher,
I must have missed your post earlier.
The dirty burn suggests low pressure for the powder. With bullets at all close to M193's 55 grain weight, this is not too surprising. BL-C(2) (canister grade WC846) was rejected for M193 5.56 ball ammo by the military because, having been formulated for 7.62 ball ammo, it proved too slow. They found an odd lot of WC846 that was unusually fast burning and were satisfied with that, so they ordered more from Olin, which gave this special fast version of the powder a new designation, WC844.
The canister grade version of WC844 is H335. If you have soot issues with BL-C(2), try working up a load using H335. BL-C(2), IME, does better with 69 grain and heavier bullets in the .223/5.56; the same applications you might choose Winchester 748 (canister grade WC748) for. Indeed, if you look at Hodgdon's burn rate chart, these two powders are right next to each other in positions 103 and 104 for 748 and BL-C(2), respectively.
I must have missed your post earlier.
The dirty burn suggests low pressure for the powder. With bullets at all close to M193's 55 grain weight, this is not too surprising. BL-C(2) (canister grade WC846) was rejected for M193 5.56 ball ammo by the military because, having been formulated for 7.62 ball ammo, it proved too slow. They found an odd lot of WC846 that was unusually fast burning and were satisfied with that, so they ordered more from Olin, which gave this special fast version of the powder a new designation, WC844.
The canister grade version of WC844 is H335. If you have soot issues with BL-C(2), try working up a load using H335. BL-C(2), IME, does better with 69 grain and heavier bullets in the .223/5.56; the same applications you might choose Winchester 748 (canister grade WC748) for. Indeed, if you look at Hodgdon's burn rate chart, these two powders are right next to each other in positions 103 and 104 for 748 and BL-C(2), respectively.