6.5mm Hornady Bullets seated to varying depths

[Bennybone]

I am looking to setup a thread for results of shooting 6.5mm Hornady AMAX / SST / VMAX / Interbonds at COAL different than those stated in Hornady's reloading book (latest edition).

Please post only for powders that are listed in the Hornady book and only the above listed projectiles. This will keep the thread manageable and focused. Thx.

List the chambering and action type you are shooting

List the barrel length and twist of your rig

List the various seating depths(COAL) you tried and group sizes they produced. NOTE - Be sure to specify if you are measuring the distance to the OGIVE or the TIP of the bullet.

List whether you crimp and if you have the data how far off the barrel lands the bullet is.

The objective is to attempt to determine for the .264 class of Hornady bullets if there is a sweet spot for seating depth pertaining to the rifling of the barrel. The book COAL is factored to be safe in the majority of barrels in use and thus the factory loads are generally accurate for most but we are seeking the uptmost accuracy and consistency in this thread.

Thanks in advance-

BB

 

[cega]

Re: 6.5mm Hornady Bullets seated to varying depths

You may find that it may prove to be more accurate to get the measurement to the ogive rather than to the tip since tips can vary. Or get both if that helps.

I just got a bunch of AMAXs today and with a little luch will start on them this weekend or next and will post my info as I go.

 

[Bennybone]

Re: 6.5mm Hornady Bullets seated to varying depths

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: CEGA</div><div class="ubbcode-body">You may find that it may prove to be more accurate to get the measurement to the ogive rather than to the tip since tips can vary. Or get both if that helps.

I just got a bunch of AMAXs today and with a little luch will start on them this weekend or next and will post my info as I go. </div></div>

Not all of us have the equipment to properly measure the length for ogive however the "comparator" does offer a wide array of case types to get the most accurate measurements. See if your cartridge type is offered here

Thx,

BB

 

[M C]

Re: 6.5mm Hornady Bullets seated to varying depths

6.5 is 6.5 - a 6.5 mm insert for a hornady comparator will work with ANY 6.5 bullet. doesn't matter.
i would recommend getting one if you don't have one, as cega stated- they are a more accurate way of measuring. the tip doesn't ride the lands, the ogive does. think of it that way. given that you want specific measurements it would be beneficial to rule out any factors that you can.

 

[Bennybone]

Re: 6.5mm Hornady Bullets seated to varying depths

I have modified my above post, I didn't think comparator inserts were available for all the cartridges across the .264 bullet type however I stand corrected. - Thx.

I guess I know where to spend my next available 70 bucks.

For those without the comparator I am sure they can glean an overall COAL by asking the poster who is providing ogive measurements for their cartridge type, this is another reason to keep this thread limited to the Hornady bullet types.

BB

 

[FamilyMan]

Re: 6.5mm Hornady Bullets seated to varying depths

My 6.5CM comes in this week and I will be starting load development next week or so I will be sure to watch this thread as well as post my results for the 140Amaxs as those are the only,Hornady's ill be testing.

 

[Rob01]

Re: 6.5mm Hornady Bullets seated to varying depths

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Bennybone</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: CEGA</div><div class="ubbcode-body">You may find that it may prove to be more accurate to get the measurement to the ogive rather than to the tip since tips can vary. Or get both if that helps.

I just got a bunch of AMAXs today and with a little luch will start on them this weekend or next and will post my info as I go. </div></div>

Not all of us have the equipment to properly measure the length for ogive however the "comparator" does offer a wide array of case types to get the most accurate measurements. See if your cartridge type is offered here

Thx,

BB</div></div>

Do you have a fired case, a bullet and some time? Partially size the neck on a case so it has a little neck tension and then seat a bullet long. Then chamber it using the lands as the seater and carefully extract it and measure to the ogive with a comparator.

Comparators are cheap as well
http://www.midwayusa.com/product/746974/ptg-bullet-comparator-22-24-25-26-28-30-calibers

I always start my loading at .020" off the lands with all my Hornady bullets and usually end up around there. That said the factory Creedmoor is jumping much farther and is still very accurate.

 

[cega]

Re: 6.5mm Hornady Bullets seated to varying depths

BB -

I wasn't trying to stir anything up with my suggestion but based on your original post and the extent of quite specific data you are looking to collect it seemed reasonable to suggest that the measurements be taken from the ogive rather than the tip. Everyone I know who seriously reloads and who would be in a good position to give you accurate data as you requested has spent the extra few bucks to get the tools to measure to the ogive since it is the only real way to consistantly measure to the lands and from that number determine where to seat the bullet.

CEGA

 

[Bennybone]

Re: 6.5mm Hornady Bullets seated to varying depths

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: CEGA</div><div class="ubbcode-body">BB -

I wasn't trying to stir anything up with my suggestion but based on your original post and the extent of quite specific data you are looking to collect it seemed reasonable to suggest that the measurements be taken from the ogive rather than the tip. Everyone I know who seriously reloads and who would be in a good position to give you accurate data as you requested has spent the extra few bucks to get the tools to measure to the ogive since it is the only real way to consistantly measure to the lands and from that number determine where to seat the bullet.

CEGA
</div></div>

CEGA -

Sorry about my reaction, your input is appreciated.

I understand that precision is based on accurate data and every so often I regress in thinking of precision in simplistic ways.

I look forward to receiving everyone's contributions on this thread.

Thx,

BB

 

[Bennybone]

Re: 6.5mm Hornady Bullets seated to varying depths

Regrouping