Snap Cap / Dummy Rounds for Mauser K98K

[daktaklakpak]

Hello, I just recently won an auction for an Israeli Mauser K98K 7.62 NATO. I was wondering if these might be decent choices for playing around with the action at home safely and to show friends:

http://www.amazon.com/ST-Action-Pro-Trainer-Rounds/dp/B004JJC40W/ref=sr_1_1?ie=UTF8&qid=1339699558&sr=8-1

or

http://www.amazon.com/A-Zoom-Precision-Snap-Caps-Pack/dp/B002IEM9NM/ref=sr_1_fkmr0_1?ie=UTF8&qid=1339699608&sr=8-1-fkmr0

or

http://www.ebay.com/itm/308-Win-Safety-Training-Ammo-Practice-Trainer-Dummy-Rounds-/130706905043?pt=BI_Security_Fire_Protection&hash=item1e6ebd17d3#ht_2996wt_710

I'm new to guns, and read that dry firing can damage the firing pin on a gun. The first choice of the three above say not designed for dry fire, but it's nice that it comes in a 5 round pack. The 2nd has 2 rounds only, and some comments say they might not be truly the same size as real 7.62/.308, the third are plastic but also seem to be slightly odd looking from normal 7.62/.308 as well (wonder if these will fit the 98k).

Thanks for any comments and suggestions.

[Merc1138]

1. Dummy rounds do not need to appear just like a normal cartridge. They're typically shorter, have funny looking tips, etc. It doesn't matter.

2. The metal body snapcaps will probably last longer. I've used plastic dummy rounds before and the rim gets chewed up.

3. Most firearms can be dry fired just fine. However there is a difference between doing it a couple of times, and sitting at home dry firing 500 times daily while watching the news.

4. I have A-zoom .308 snapcaps and they work just fine.