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King Arms Thompson 1928 has feeding issues w/heavier pellets

1021 Views 29 Replies 5 Participants Last post by  OverdriveRules
OK, so for a couple of months now, I've owned a King Arms Thompson Model 1928 (the one with the charging handle on top, not the M1-style charging handle that most 1928 airsoft replicas have), and barring an instance where it had to be sent back for repairs after running away on me during a game, it's been treating me well. However, today, I used .28 gram pellets with it instead of the .25 gram pellets that I usually use in my AEGs because I felt that since it was already doing an average of 330-335 FPS with the .25s, then going up a little in weight wouldn't hurt. However, because of that, it's been having feeding issues. Before anyone asks: 1. I have been winding the drum mag all the way, and 2. I haven't tried the three hi-cap stick mags today that I bought as backups.
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Those bbs are too soft. That's likely your problem. Typically high cap mags are more forgiving of soft bio ammo but those are one of the softest bbs I've ever tried.
Don't judge me too harsh for saying this, but if you can crush a bio bb in your teeth at all, don't run it through your guns. It will leave residue down the top of the entire bore, it will leave residue tracks in your midcaps and leave a mess in high caps over time if you forget to empty them. Midcaps require perfect bbs to feed, if the ammo is just crushing it will not go from double to single stack smoothly, nor will it slide smooth in the mags.

Not all bios are made from the same material. Guges can probably explain on that further than I can.

Valken infinity bios are what I believe your referring to. They look grayish right? Like dirty white.
Don't judge me too harsh for saying this, but if you can crush a bio bb in your teeth at all, don't run it through your guns.
Or the early heavy bio bb with powdered lead...yeah...what...lead is BIO...its a natural material...
I believe I may have made a poor life choice... oops.
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BLS bbs batches for themselves are better than their batches for rebrand it seems.

I think you'll notice a large improvement.
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