wp loop custom post type

1<?php
2$loop = new WP_Query(
3    array(
4        'post_type' => 'yourposttypehere' // This is the name of your post type - change this as required,
5        'posts_per_page' => 50 // This is the amount of posts per page you want to show
6    )
7);
8while ( $loop->have_posts() ) : $loop->the_post();
9// The content you want to loop goes in here:
10?>
11 
12<div class="col-sm-4">
13My column content
14</div>
15 
16<?php endwhile;
17wp_reset_postdata();
18?>
19