223 primer question ?

[DLT]

I would love to post pictures as I have in the past but it will not let me no matter what size file I choose

 

[DLT]

Here was seating depth test. Trying to see if this link works

https://imgur.com/a/mbbnrcc

 

[DLT]

Here was powder test. Wasn’t quite as pretty as I had hoped Started at 24gr went up to 25gr .2 increments. Nevermind upper target thats x’d out. Looks good at 24.4. Moved scope up 1” after the first group is why it jumped up

https://imgur.com/a/JUqe6WE

 

[Doom]

Here was powder test. Wasn’t quite as pretty as I had hoped Started at 24gr went up to 25gr .2 increments. Nevermind upper target thats x’d out. Looks good at 24.4. Moved scope up 1” after the first group is why it jumped up

https://imgur.com/a/JUqe6WE

You put together a pretty good test. The seating test is interesting and and I would take 2.950 as your COAL from the test and 24.4 gn as the powder charge. The powder being based on the POI on either side being almost identical to the 24.2. I am concerned that you don't have enough bullet in the neck though.

This rifle has been throated. There isn’t much in the neck at .010 off. I have personally shot bullets jammed very few times.

This is going to be an issue. How are you measuring this? is this Cartridge overall length or is it cartridge base to ogive without zeroing the caliper for the comparator? If you don't have enough of the bullet bearing surface in the mouth you will have inconsistant SD/ES. This bullet is not sensitive to jump and I would try to keep at least 0.20" in the neck.

 

[DLT]

You put together a pretty good test. The seating test is interesting and and I would take 2.950 as your COAL from the test and 24.4 gn as the powder charge. The powder being based on the POI on either side being almost identical to the 24.2. I am concerned that you don't have enough bullet in the neck though.

This is going to be an issue. How are you measuring this? is this Cartridge overall length or is it cartridge base to ogive without zeroing the caliper for the comparator? If you don't have enough of the bullet bearing surface in the mouth you will have inconsistant SD/ES. This bullet is not sensitive to jump and I would try to keep at least 0.20" in the

I measure it with my hornady bullet ogive comparator. So it’s from cartridge base to ogive. I will say that this box of bullets they measure all over the place hardly any of the 3 loaded at a seating depth were dead on. .005 difference between was pretty common as I measured while seating. I’m thinking maybe half the neck had bullet in it

 

[Benchrest Braxton]

I measure it with my hornady bullet ogive comparator. So it’s from cartridge base to ogive. I will say that this box of bullets they measure all over the place hardly any of the 3 loaded at a seating depth were dead on. .005 difference between was pretty common as I measured while seating. I’m thinking maybe half the neck had bullet in it

0.005" CBTO variance??? thats massive, in my years of loading them i've always been well within 0.001" everytime

 

[DLT]

0.005" CBTO variance??? thats massive, in my years of loading them i've always been well within 0.001" everytime

Yea it’s massive. Don’t know if it’s the bullets or something with my seater but they are all over the place

 

[Doom]

I measure it with my hornady bullet ogive comparator. So it’s from cartridge base to ogive. I will say that this box of bullets they measure all over the place hardly any of the 3 loaded at a seating depth were dead on. .005 difference between was pretty common as I measured while seating. I’m thinking maybe half the neck had bullet in it

Something is wrong with your measurements. The case is typically 1.760" or slightly less and the bullet is about 0.830". No way is any COAL or CBTO 2.935. Are you zeroing the caliper or are you using a micrometer? If you are using a micrometer you should subtract the reading with only the insert in to show the true length of cartridge. About 2.950'-1" =1.950" CBTO.

As @Benchrest Braxton noted 0.005" is a lot for bulllet base to ogive if that is what you meant. That is more like the expected variance in bullet Overall Length. It that is the seated depth then it sounds like the bullet is bottoming out in the seating die stem and not seating on the ogive.

 

[DLT]

Something is wrong with your measurements. The case is typically 1.760" or slightly less and the bullet is about 0.830". No way is any COAL or CBTO 2.935. Are you zeroing the caliper or are you using a micrometer? If you are using a micrometer you should subtract the reading with only the insert in to show the true length of cartridge. About 2.950'-1" =1.950" CBTO.

As @Benchrest Braxton noted 0.005" is a lot for bulllet base to ogive if that is what you meant. That is more like the expected variance in bullet Overall Length. It that is the seated depth then it sounds like the bullet is bottoming out in the seating die stem and not seating on the ogive.

Yes I zero my calipers. I just leave the additional 1” in my measurements. But yes technically 1.950

 

[NZ_Fclass]

Will do

Well...the wind at the range wasn't conducive to group testing and most had a "difficult" day - however, in terms of velocity. consistancy...Federal Gold wins hands down (no surprise) with Ginex and RWS being almost identical. Now, here's a thought. I do wonder whether the RUAG, supposedly RWS, are in fact Ginex re- branded. They look identical and measure the same to a thou. That's a worry - given the price difference - and the fact that I wanted to try RWS, not some corporate offering. while they are primers that I will use for competition....
Remington 7 1/2 came in 3rd - but still useable - I do like them in the 6BR and the 308. More testing needed on a more predictable day.