PPC with diff shoulder angles?

[Sniper338]

Got curious in my bores state the other day...

Anyone ever AI or sharpen the shoulder on a PPC to gain more capacity? I mean it shoots as is, but curious if anyones tinkered and found anything...

 

[TAJ45]

I know not, that's for sure but I'll bet it has been tinkered to H. and back.

 

[R.Morehouse]

I think the case was made about 16K longer and renamed 6 Grendel....
......................................Brain ^^ Cramp................

Regards
Rick

 

[gunsandgunsmithing]

I think the case was made about 16K longer and renamed 6 Grendel....

Regards
Rick

Not quite right, Rick. A straight 6 Grendel shares the same shoulder and with a PPC but the shoulder is .070" further forward. Overall length is nominally the same, so the Grendel neck is shorter than the PPC. Everything else is basically the same. Small primer, flash holes and Lapua brass. It just has to be necked down from 6.5 to 6mm...no fire forming per se.

Here's a side by side pic for comparison. IIRC, volumetric difference is about 4% more for the Grendel.

 

[Sniper338]

These small cases are more fun than big brass. More enjoyable. Id like a wildcat on a ppc or grendel case.. its the two im playing with ideas on

 

[Dusty Stevens]

The shoulder angle, body taper, and volume is what makes it magic. Change any of them and it becomes any other cartridge

 

[R.Morehouse]

Neck the Grendel up to 30......You could call it something cool.....Like 30Major...

 

[TAJ45]

Or up to 7mm and call it Big Daddy.

 

[gunsandgunsmithing]

The shoulder angle, body taper, and volume is what makes it magic. Change any of them and it becomes any other cartridge

We all see lot to lot variations in powder. Any chance changing the case by a small amount can optimize the case to those powder lots? Just take lot 10 of LT32 for example...Virtually no one shoots it because it's too bulky, can't get enough in the case. That's the hair we're splitting.

 

[Spook]

Or up to 7mm and call it Big Daddy.

I have, its amazing with Speer TNT's. I called it 7mm $pendel.

 

[Jr Rigsby]

We all see lot to lot variations in powder. Any chance changing the case by a small amount can optimize the case to those powder lots? Just take lot 10 of LT32 for example...Virtually no one shoots it because it's too bulky, can't get enough in the case. That's the hair we're splitting.

What do you mean by "toobulky" , I've not had a problem with it.

 

[DOGCAPPER]

Neckky ,my PPc runs at 27.7 gr LT32 with plenty of room for max 28.1.

 

[Tim Singleton]

Neckky ,my PPc runs at 27.7 gr LT32 with plenty of room for max 28.1.

I've shot 50 or so pounds of lot10 over last few years no issue getting enough in the case standard ppc
Usually 28.8 to 29.3 shoots well

 

[gunsandgunsmithing]

What do you mean by "toobulky" , I've not had a problem with it.

I'm speaking of lot 10 vs lot 15 of lt32. Both can shoot just fine but I just dumped several charges of both, at the same setting on the powder measure. The lot 10 averaged right at .4 tenths lighter than the 15. Not a lot but when you're loading at the top end and out of case, that's enough to matter. In my case, it is enough to make it near impossible to handle the loaded case without spilling it everywhere. Some people go as far as using an electric tooth brush to settle the powder in each case. I really prefer to not do all that. Lol!

 

[gunsandgunsmithing]

I've shot 50 or so pounds of lot10 over last few years no issue getting enough in the case standard ppc
Usually 28.8 to 29.3 shoots well

Nuttin wrong with that. Glad its working for you Tim.
I came across the difference while loading for a match. I loaded several before I had realised I picked up the lot 10. The cases were too full to handle, dumping as I always do. I checked the weights several times. It took a minute for me to realise what I had done and why my measure needed an adjustment when I started. Then it dawned on me and sure enough, I was loading lot 10.
I went ahead and finished 50 rounds of it and they shot very well. I shot a 263 the next day at 100. Missed my very first shot and hit 23 in a row after that. Itll shoot.

 

[Dusty Stevens]

I'm speaking of lot 10 vs lot 15 of lt32. Both can shoot just fine but I just dumped several charges of both, at the same setting on the powder measure. The lot 10 averaged right at .4 tenths lighter than the 15. Not a lot but when you're loading at the top end and out of case, that's enough to matter. In my case, it is enough to make it near impossible to handle the loaded case without spilling it everywhere. Some people go as far as using an electric tooth brush to settle the powder in each case. I really prefer to not do all that. Lol!

Get you a “sho nuff” drop tube. Heres my 14”

 

[Grimstod]

The shoulder angle, body taper, and volume is what makes it magic. Change any of them and it becomes any other cartridge

I would echo this. When the PPC was in development ever shoulder angle was test. I think even in 1d increments. 30D was the magic number.

 

[Ccrider]

Get you a “sho nuff” drop tube. Heres my 14”View attachment 1173432

Ok. Got to ask? What’s up with the Dasher loads in the zilploc bag?

 

[BartsBullets]

I’ve shot a 6PPC improved. It showed potential but I couldn’t get it to shoot consistently. Maybe some one else would have better luck with it.

Bart

 

[thekriebles]

Here is a fraction of what's been done in improved shoulder versions:



Left to right: 17 PPC Imp. 40°, 20 PPC Short .150" Imp. 40°, 20 PPC Imp. 40°, 22 Waldog 35° (not the 30° Waldog version), std. 6 PPC,
6-40 Tyger, 6-40 Dune, 6mm HAWK (double radius shoulder similar to a Weatherby)