
Originally Posted by
Bill T
I have a S&W Bodyguard .380 that came with two 6 round magazines. Recently I bought a 10 round mag from, I think, Pro-mag. The tenth round is EXTREMLY hard to put in the mag. I don't really want to send it back unless I have to. Does anyone have any idea what I could do to fix this problem?
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It could be one of two problems: either the spring or the follower.
Sometimes the follower on a new magazine will have a bit of flashing left over from molding it. You can try shaving or even just lightly sanding the underside (the side the spring pushes on) to reduce it's size. Such magazines have excessive spring tension, making that last round a real pain to stuff.
If the problem is the spring, loading it will get easier over time as the spring deforms from loading. Leave the magazine fully loaded (even if you can get only nine shells in there). Time will help it.
If the spring is simply too stiff, you can try to disassemble the mag and file one end of the spring down, but that may weaken the spring after aging to not properly feed the last round in use.
If you can find a good gunsmith, he can better identify the problem for you. There is probably one near you.
Springs have a pressure difference during compression that is not linear. The more you compress it, the difficulty of compressing it more goes up by the square of the pressure required. On six round magazines, the length of the magazine and the spring is not much of a problem over 6 shells worth of travel. With larger magazine, such as 10 shell magazine, it gets tougher to load that last shell. The bigger the magazine, the more acute this problem becomes (for all linear magazines, such as used in semi-automatic pistols and most rifles). One of the problems is the compromise between keeping the spring strong enough to feed that last shell reliably during that short cycling of the gun, yet weak enough to make it possible to load the thing in the first place.
Some people use a speed loader for the size magazine they use. This makes it easier to compress that spring that far because the speed loader compresses the spring using full wrist pressure rather than just fingers. You might consider one of these as a work around. At least you are using .38 shells. Smaller shells are even harder to stuff into cranky magazines.
Hope that helps.
Last edited by Into the Night; 11-17-2023 at 08:21 PM.
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