Home Forums Hunting & Shooting Hunting Rifles One 30 cal bullet deer to moose

Cold weld ranks right up there with barrel node for concern about your rifle shooting well...

Barnes TTSX 168gr and a hole lot of H4831sc Just make sure the .308 win is not a 1:12 twist!

Jerry,

I've heard of "cold weld", can't say I've experienced it.

I'm guessing you see erratic pressures?? Need a tutorial.

Why can't you just bump the bullets slightly, seating them .01" deeper, assuming you don't have a hard crimp? That shouldn't affect performance that much and will for sure break any "weld" that may have occurred. Seems easier than pulling and reseating bullets.

DF

Kind of a funny question. However, I think it was pharmseller who said he bought 1000 partitions and they lasted him 18 months. Like I said, I bought 500 180gr. partitions and then another 400 200gr. partitions in the last 6 months because my 180gr. supply was running thin. I have to ask: What do you do with the bullets you buy?????? I practice with my rifles and shoot for enjoyment. I hunt on occasion. Practice is the only way you get good at something. I'm still trying to get good...




300 WSM with 180gr. partitions (bullet I'd choose in most 30 cals):



My old fwt 30-06 likes them too:


I don't just buy 30 cal bullets either. The old 270 fwt likes the partitions and so does the 375 H&H. If you don't mind me asking, what is the point to your question???

bsa,

I think you got that CZ 9.3 fairly well tuned in...

I do like that round and CZ's.

If you keep up that practice, you may get to shooting some fairly decent groups...

DF

Thanks buddy... I'll keep trying. Maybe next year will be better!!!!!!! Although my buddy Geno (Valsdad) has the rifle now, so no more practicing with that great rifle. I'm hoping he will really enjoy it.

One bullet for all is OK providing the selected bullet shoots well in all of them. Then not so much.

TTSX bullets have been very accurate in in my .308, .30-06 and .300 WM rifles. Moreover the TTSX and MRX have proven very effective on game, from antelope to elk. If I had to choose a single bullet for all it would be the 168g TTSX.

D F -

I had only heard of 'cold weld' here on the 'fire' and Mule Deer has discussed it. This year is my first experience with it.

After some period of time with loaded ammo, there is a chemical reaction between the jacket metal and brass cases. This reaction causes a bond between the bullet and case - called cold weld.

I don't know about erratic pressure but some higher pressure. I have some ammo --loaded--for a couple of 270 W rifles. I don't remember just how long it had been loaded but, there was NO change in lot #, cases, or powder charge. I've been using THIS same charge with THIS same powder for many years. The only difference was,- it has been loaded for a while, a few years.

I fired a round to check scope zero and the case was a little sticky (recalcitrant-to use a GW term ) to remove. I shot 1 more and got the same reaction. In MANY MANY years using this powder and this charge I NEVER had a round to be sticky.

I simply bumped the bullets down a little then pulled them up a little and RE seated them. Those I shot afterwards showed no problem at all.

As far as bumping them down .001", that might work but I don't know if it's enough.

Mule Deer could give a more definitive answer but this describes what I understand and what I experienced this year.

In the OP kman said friends wanted him to "load 300 rounds for each rifle for a 'life time' supply of hunting ammo. That made me think of the possibility of 'cold weld'.

Jerry

Excellent choice with the 180 grain Partitions

The easy answer is go monolithic,such as the Barnes. With the .308 Win. as the low end velocity component in this equation, I'd suggest the 165/168 grain Barnes as your go-to bullet. This 150 TTSX would also work well, but would somewhat handicap the other calipers on long(er) shots. memtb

Just in case y'all missed this> done deal


Jerry

Imo it don't get much better than the 180gr partition for what you're asking.

Hornady has a new 180 out that should do fine. Just read about it in Am Rifleman. ELD-X. Sounds perfect assuming all 3 rifles like it.
I don't have any rifle that particularly likes partitions -all of them shoot better with other bullets. I have largely gone back to plain janes as they do everything I require.