My type 1's work flawlessly.
See below, copied direct from their website:
One of the most popular platforms for the addition of a DBM system is the Remington 700 short action. It is important to understand
the limitations of any box magazine with this action. The Alpha Type 2 magazine is designed without a spacer plate. This magazine
works best with actions that have been modified to accept longer projectiles. Most gunsmiths will relieve or notch the feed-ramp of
the action to ensure proper feeding of the magazine. This will ensure the tip of the projectile does not hang up on the underside of the
feed-ramp and cause a failure to feed. Simply stated, if you wish to load solids out longer than factory spec, the Type 2 magazine is
what you need. Just keep in mind you may need to have your weapon modified to avoid feed issues.