OP, You typically pull bullets apart with a bullet puller, which is going to be around $25 for a basic one (inertia style). A less basic one works on a reloading press (eg a collet style), and will set you back $25-45, with collets.
If you decide to get into reloading, you will be in a position at some stage to recover the components. IE, you will learn the pro/cons and risks of what you are asking in the OP and the methods to mitigate those risks (eg, dis-assembling the ammo), and have the gear to do this.
Also, FYI also as mentioned above, there is the risk of the necks cold welding over long periods of storage. Unlike factory ammo, handloads the bullets are usually contaminated by touching the jackets. This alters their shelf-life/stability. This can lead to pressure issues or issues with disassembly, depending on what is going on.
Cold weld. This is my primary concern right now before I pound a couple thousand rounds together. One load I’m doing for friend, Is going to be round 800 rounds of 204 ruger. Might take him a decade to shoot it all. other load I wanted to put 1500 rounds of 77smk and 8208 together for long...
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I am curious of some thoughts on bullets "cold welding" in the necks of handloaded ammo and why it doesn't seem to have the same effect on factory ammo. Is it caused by the fouling of previous firing? Could it be avoided by wet tumbling? Could it be avoided by using "coated" bullets? I...
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To avoid the so called "cold weld" between bullet and case, anybody tried applying a bullet lubricant like liquid alox from Lee, commonly used on cast lead bullets? Roll the bullets over a small amount of alox. Allow to dry and seat them. Remove the excess from the bullet and neck. Will try it soon
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