Armory Sponsor
Posted: 6/7/2014 2:25:39 PM EDT
|
Don't always trust the cannelure on bulk military projectiles.
I set my seating die so most of them would be seated to the middle to top of the cannelure. Either some are a different brand or the cannelure is in the wrong place because even though the top of the case sits over the cannelure area, some of them are way too long and binding in my mags I've loaded 3-4000+ Military projectiles like this and this is the first time this has happenned. 
|
|
Quoted: Don't always trust the cannelure on bulk military projectiles. I set my seating die so most of them would be seated to the middle to top of the cannelure. Either some are a different brand or the cannelure is in the wrong place because even though the top of the case sits over the cannelure area, some of them are way too long and binding in my mags I've loaded 3-4000+ Military projectiles like this and this is the first time this has happenned. https://farm3.staticflickr.com/2897/14084059057_32d2304f93_h.jpg |
| You have to set the die to the correct OAL length regardless. If you dont crimp, and in most instances it is not necessary, it doesnt matter other than poor bullet quality is usually one of the key things affecting accuracy. I stay away from misurp bullets that are unknown or suspect in origin. Wideners is one source of cheap mil spec bullets that I have never had issues with. |
|
Quoted:
Variances with case length can also cause this. I have also loaded Win 55 gr fmjbt's, so I feel your pain. Yeah, but all the cases are the same thanks to Mr Giraud. I honestly dont know the brand, but they are SS109's I bought years ago. The first couple were right one, but there is a bunch of "super pointy" ones that are over 2.270" and bind in my mag. |
|
I've found a few 55gr FMJ's mixed in my SS109's. They are easy to spot because they are alot shorter.
As you complete each round take a quick look at the bullet, where it's seated. If it looks funny set it aside and continue on. You can measure all the funny looking ones later and re-seat them. Or, line a bunch up on your bench and put a straight edge over the bullet tips, that will show you the longer ones. It sucks and it's slow but needs to be done 'cuz you can't have ammo that creates malfs even when you're just plinking. |
|
I run into this all the time with .308" milsurp bullets. The bullets are simply different. They are either from different manufactures or different lots or both. It did not matter when they were originally loaded because they met the military contract requirements. Once pulled and mixed though you end up with COALs all over the place.
I usually find the ones that seat the longest and make sure they "work" in my action then let the rest go where they may. I don't crimp so its no big deal if the canalure does not end up at the case mouth. You would have to back off your seat die and adjust it for every round to get them all to line up. 
|
|
Quoted:
Yeah, but all the cases are the same thanks to Mr Giraud. I honestly dont know the brand, but they are SS109's I bought years ago. The first couple were right one, but there is a bunch of "super pointy" ones that are over 2.270" and bind in my mag. Quoted:
Quoted:
Variances with case length can also cause this. I have also loaded Win 55 gr fmjbt's, so I feel your pain. Yeah, but all the cases are the same thanks to Mr Giraud. I honestly dont know the brand, but they are SS109's I bought years ago. The first couple were right one, but there is a bunch of "super pointy" ones that are over 2.270" and bind in my mag. It sounds like those were from different batches, if not from different manufacturers as well. As others noted, load to the correct OAL and if the cannelure lines up, celebrate. The only issue with that is, with those "super pointy" bullets, the ogive may not be close enough to "normal" SS109s for the way you have your seating die set. Have you weighed them to see that they really are 62-63gr? |
|
Quoted: Yeah, but all the cases are the same thanks to Mr Giraud. I honestly dont know the brand, but they are SS109's I bought years ago. The first couple were right one, but there is a bunch of "super pointy" ones that are over 2.270" and bind in my mag. Quoted: Quoted: Variances with case length can also cause this. I have also loaded Win 55 gr fmjbt's, so I feel your pain. Yeah, but all the cases are the same thanks to Mr Giraud. I honestly dont know the brand, but they are SS109's I bought years ago. The first couple were right one, but there is a bunch of "super pointy" ones that are over 2.270" and bind in my mag. Chance you take with surplus/pulled bullets. Good price, but sometimes the bullets have small issues.
|
Armory Sponsor