Comments on: TOOL TIP: Make Your Own Length-to-Lands Gauge

By: Morten Breiland

Morten Breiland — Thu, 08 Mar 2018 13:25:33 +0000

If you put the bullet in the rifling you will get a sharp pressure increase. Do you get pressure marks you can pull the bullet of the rifling and the pressure marks will often disappear.

By: Morten Breiland

Morten Breiland — Thu, 08 Mar 2018 13:06:54 +0000

Smoke the bullets with a candle, then you can see if the bullet has hung in the rifling.

By: Shawn

Shawn — Sun, 11 Jun 2017 20:55:09 +0000

Scot the Sammi specs are very conservative that is why most factory loaded ammo don’t shoot for beans. When I find out where the bullet touches the lands I seat just a hair more. As long as the bullet is not crammed into the rifling it’s completely safe and makes your rifle a lot more efficient.

By: Scott

Scott — Thu, 05 Jan 2017 07:20:43 +0000

Wow. Awsome idea.

By: Scott Couch

Scott Couch — Fri, 15 Apr 2016 17:49:29 +0000

I did this and it worked well but my question is the saami oal is 3.290 for a 7mm rem mag after doing this my measurement is 3.36 what do i do next do i seat 1-2 thousandths deeper but this will still be over saami is this safe?

By: GR

GR — Thu, 02 Jul 2015 23:01:49 +0000

DW…just neck size a fire formed case. then there will be just the right tension (adjusting for 3 or 4 cuts with dremel). Or simply smoke the bullets with a candle works too!

By: DW

DW — Wed, 28 Jan 2015 02:23:15 +0000

Not all that experienced, so forgive me if I am asking an obvious question: If this device is made using a fire-formed brass … meaning it was fired in the chamber you are reloading for…how can the bullet remain in the brass case? There is no tension left on the neck to hold the bullet.

By: Dan

Dan — Thu, 12 Jul 2012 13:50:21 +0000

I just started reloading recently and this was an obvious no brainer way to get the lengths to touch the lands. I use this when changing bullet types to find the right length for each one. Once I have it set I measure the ogive length and make notes then the next time I am loading those bullets I have dial my dies in pretty quick to adjust for seating depths of each. I like them to be just in the lands a touch I find the best.

By: xpfuzz

xpfuzz — Mon, 26 Dec 2011 01:40:34 +0000

Great idea worth repeating as some of the younger shooters probably don`t know of this..The one thing I have found is even in the same lot of bullets I have found varing ogive lengths,,kinda frustrating…..

By: jimbo46

jimbo46 — Sun, 25 Dec 2011 16:41:55 +0000

Additionally you can measure the wear of the chamber easily allowing you to adjust for the life of the barrel. Key is keeping good records of rounds pushed through.
If you order multiple match barrels at the same time and hopefully from the same lot of steel, using the same reamers you can have a better idea of when to change barrels, how similar both barrels are and during a competitive season. Less surprises, during a match.