Only if you have a 30 round magazine.
If you have a 30 round magazine for it, yes, it will hold 30 rounds.
3 in the magazine, plus 1 in the chamber. All are supplied with a magazine plug to make it 2+1.
Nine rounds plus one in the chamber (tubular Magazine)
The 'P' stands for "PLUS". The PT100P (or "PT100 Plus") model has an expanded magazine capacity. Its magazines hold 16 rounds of .40 S&W, while the original regular PT100 magazines only hold 11 rounds. The magazines for the two models are not compatible with each other. The PT100P 16-round magazines are wider than the older PT100 11-round mags.
Your marlin should hold 5 plus one in the chamber.
From WW1 until the Vietnam War, the standard issue Army .45 automatic carried a 7 round magazine. One in the chamber, plus the magazine, made eight rounds total.
midwayusa.com for $30 plus shipping for 50 rounds.
It holds 14 rounds in the feed tube plus one in the chamber.
I have 5 I would part with. New in box. Manufactured by Colyer Clip. It says on the box it holds 8 rounds, but it will take 9, plus one in the chamber.
1.51 rounds to 2
9.7 plus 5.4 rounded = 15.1 which rounds to 15
Well... 2.84 rounds to 3, and 3.21 rounds to 3. So 3 plus 3 is 6. The estimated sum is 6. The actual answer is 6.05 so that is right.