Thread: Checking projectiles between batch numbers

Routine measurements of new batches often show no change but this time they were there


Here you can see the Nosler 140g 7mm projectiles on the right have more Copper in their alloy than the newer ones on the left, no doubt softer and from a much earlier batch, we know Nosler toughened up their Ballistic Tip line and the alloy blend was one change




Measuring with a comparitor on the verniers there is also a difference in length from the ogive to base and ogive to tip, 14 thou difference

Thats considerable and could really give you grief if you used the new batch at your old COL (cartridge overall length) or ZCL (zeroed comparitor length) settings




So all in all a timely reminder to check your projectiles between batches, not only for our own safety, but also to make sure they go where we want them to go