7mm 190gr A tip

[No i deer]

I can't seem to find the length of the 190gr A tip..
Can one of you who has some measure one for me and post the measurement..
It's so I can enter the figures into my ballistic calculator.
Thanks NID

 

[284winner]

I can't seem to find the length of the 190gr A tip..
Can one of you who has some measure one for me and post the measurement..
It's so I can enter the figures into my ballistic calculator.
Thanks NID

Haven't seen the actual number from Hornady but second hand info was 1.640. Seems close as the 180 ELD is 1.538 I believe.

 

[No i deer]

Thank you

 

[No i deer]

My bal cal tells me that the 190gr A tip would shoot inside the 184gr hybrids by around 8 inches at 1000yds in a 10mph full value wind..
That's quite a saving

 

[rardoin]

My bal cal tells me that the 190gr A tip would shoot inside the 184gr hybrids by around 8 inches at 1000yds in a 10mph full value wind..
That's quite a saving

Yes...that is what keeps me interested. However they must shoot as well as a 184 vertically to be competitive. If the vertical is twice a 184 the points ‘leaked out the corners’ may be more of a disadvantage. Time will tell.

 

[rardoin]

I've got 100 en route. Hopefully I can get a test in the next week or so.

 

[No i deer]

Looking forward too seeing and hearing the results .
How much are they over there..
The 6.5mm A tips we have here now are £95 A box ouch.!!!

 

[rardoin]

$.76ea here. Better than the initial estimated price of $.84. Still pricy

 

[rardoin]

I can't seem to find the length of the 190gr A tip..
Can one of you who has some measure one for me and post the measurement..
It's so I can enter the figures into my ballistic calculator.
Thanks NID

1.668" OAL
.196" boat tail
.679" bearing surface
.875" base to ogive
.793" ogive to tip

*This is with my comparator insert (Hornady), your measurements may vary...other than OAL.

Bearing surface is about 0.050" longer than the Berger 190 LRH

 

[No i deer]

Thank you sir

 

[No i deer]

What length freebore would the 190gr A tips need to be..??
0.280 ish..?

 

[rardoin]

What length freebore would the 190gr A tips need to be..??
0.280 ish..?

Depends on the neck length of the case used. I plan on testing them in a 7 Sherman Short mag; it has a bit longer neck than the parent RSAUM case or .284 Win. I spec’ed a reamer for .245” to run Berger 190’s but hope it keeps the A-tip bearing surface within the neck.

 

[No i deer]

Mine are standard length necks and I trim them with a 7mm 08 lee cutter and pilot as it's the same length as the trim length as a 7mm saum at 2.025 inches

 

[rardoin]

What length freebore would the 190gr A tips need to be..??
0.280 ish..?

I checked the CBTO to lands in a .284 (straight) in a barrel with 420rd count. Original FB of .225" and has pushed out about 0.006" since new. At touch the bearing surface/boat tail junction was about .025" past the base of the neck. Based on this and the neck length on a .284 Win I would need .275"+ FB to have room for off the lands seating depth but still keep the bearing surface completely in the neck. I spec'ed my 7 Sherman Short reamer for .250" freebore; considering the long neck on this cartridge it should provide plenty of freebore for the 190's of any make.

So you see, @No i deer, you do have some idea.

 

[davidjoe]

The seating die had to be cranked down for the A-TIP’s even below their own ELDM which already requires a lower adjustment than even the 195 Berger.

 

[davidjoe]

Long bullet.

 

[rardoin]

Wow, I did not think it would be that much longer than an ELD-M. Add some fletchings to the arse end and you would have a decent bolt for a cross-bow.

 

[No i deer]

Long bullet.

Hi Dave.
Did you need a different seating stem for the very pointy 190gr A tips..??

 

[No i deer]

The seating die had to be cranked down for the A-TIP’s even below their own ELDM which already requires a lower adjustment than even the 195 Berger.

So are you saying you need way more freebore than you have then..?
Did you get time too test the A tips before the lockdown..??

 

[rardoin]

Hi Dave.
Did you need a different seating stem for the very pointy 190gr A tips..??

Not if you are using a Wilson arbor press die. I cannot answer concerning other brands or types.