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Posted: 12/17/2012 3:20:05 PM EDT
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Hello
New to reloading, have already loaded a couple batches of 9mm but just setting up my dies for 223 in my AR. I bought pulled 55gr FMJ's from Rocky Mountain Reloading and they mentioned not all cannelures will line up. Going through the bag, the couple dozen I looked at seemed to be pretty consistent. Seated a couple of sample bullets with no primer or powder to an OAL of 2.256" which is slightly shorter than my LC that I have (2.257"). The cannelure is not at the case mouth or even touching. The case length (base to mouth) are within 0.001" soo not sure if this is okay. LC M193 on left, my load on right: http://img545.imageshack.us/img545/1133/20121217190511.jpg I put 2 that I seated into my AR and racked them through just fine from the mag. The projectile it'self had a scrape mark (so did the LC) I believe from the feed ramp which you can see on the LC on the far right going from tip to almost base of projectile. I checked OAL again after cycling and they stayed the same. |
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Quoted:
Hello New to reloading, have already loaded a couple batches of 9mm but just setting up my dies for 223 in my AR. I bought pulled 55gr FMJ from Rocky Mountain Reloading and they mentioned not all cannelures will line up. Going through the bag, the couple dozen I looked at seemed to be pretty consistent. Seated a couple of sample bullets with no primer or powder to an OAL of 2.256" which is slightly shorter than my LC that I have (2.257"). The cannelure is not at the case mouth or even touching. The case length (base to mouth) are within 0.001" so not sure if this is okay. LC M193 on left, my load on right: http://img545.imageshack.us/img545/1133/20121217190511.jpg I put 2 that I seated into my AR and racked them through just fine from the mag. The projectile itself had a scrape mark (so did the LC) I believe from the feed ramp which you can see on the LC on the far right going from tip to almost base of projectile. I checked OAL again after cycling and they stayed the same. This is common with pulled bullets. A lot of it has to do with the shape of the tip too and not just the location of the canalure. I would not be roll crimping these. The ones that don't line up with the canalure will have no place for the brass to go and could cause you to collapse a shoulder. A Lee FCD would be safe to use but depending on the bullet you may or may not get an effective crimp when not crimping on the canalure. Most of the time it is hard to maintain a consistent over all length too with pulled because of the mentioned above, different tip profiles. I think most guy stay away from max loads with these to help compensate for the bullet differences. |
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Okay thank you. I have the Lee FCD die I have it super super light at the moment.
I will be loading probably mid range loads with these, nothing too hot. Just for range blasting. Next time I buy some, I'll try for some Hornady (several places I checked at time were out of stock) and these were a few dollars cheaper. |
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Quoted:
Okay thank you. I have the Lee FCD die I have it super super light at the moment. I will be loading probably mid range loads with these, nothing too hot. Just for range blasting. Next time I buy some, I'll try for some Hornady (several places I checked at time were out of stock) and these were a few dollars cheaper. Most people don't crimp at all but for your pulls I think it's probably a good idea. You don't need a heavy crimp. Most guys that favor crimping and won't load without it even agree on that, I think. "super tight" is definitely not needed. Components are very likely to get hard to find again. 
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Even with quality bullets the cannelures will not line up unless your cases are all trimmed to the same length. With pulls you can get bullets with cannelures in different places, like you did. Just seat and crimp lightly, just like your doing. Main thing is keep loads below mag length, 2.260. Which is easy to do with 55 gr FMJ's. They should end up around 2.220.
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