SaintPanzer
AH enthusiast
- Joined
- Aug 18, 2021
- Messages
- 444
- Reaction score
- 1,313
- Location
- Somewhere west of Laramie
- Media
- 1
- Member of
- Dallas Safari Club; NRA Life Member; Mannlicher Collectors Association
- Hunted
- USA, Germany, Poland
Yes, 7.62X63 is just another name for 30-06. CIP lists the round as 30-06, but it's helpful to know the metric measurement when comparing to other cases.
I chose the CIP dimensions because the QL book explicitly states "Most values in the shipped database are related to piezoelectric measurement, which delivers normally higher, but true, numbers with rifle calibers than CUP – copper crusher method figures at both equal pressures. For safety reasons, in many European countries, it is illegal to use cartridges exceeding CIP maximum pressure values." I'm firing in Germany, so that's valid, and because the data is more biased to piezo, it seemed a better idea to go in that direction. It's amazing what you learn when you RTFM.
Yes, I'm working with the modern Steyr first, because I think there's a little more room for slight error there.
The Scorion is a HPBT bullet, which is why the A-Max numbers confused me so much! The Scenar might also be a good comparison. I was using the numbers from VV's online manual, as well as their app, thinking the app is most up to date (it matches the online version). I went to the app because the Scorion is a new bullet, and thought it might be listed.
Here's a funny thing about being in Germany. If you think there is a shortage in the US for US made bullets, imagine what it is like overseas! I went to one of the larger shops (in Ulm), and when I asked for Hornady bullets, the salesman just laughed. Scorions were in stock. IMR powder would also be difficult to get. Two good reasons for selecting the VV are it is a very clean burning powder, and it's available. I did score (online, from a place up north) the last 50 Woodleigh 160 grain 6.5mm round nose, and the last 100 Woodleigh 270 grain .375s. So I have that going for me.
I still need to email VV. I will try your "fill and weigh" trick, just to see where it ends up. I'll also look at the Scenar loads. Right now, I was leaning towards starting at 51,0 grains (just above the Hornady load, 2500 fps and 41Kish psi) and stepping up in 0.2 grain increments to either pressure signs or 54.3, which should give me 2663 fps and 49642 psi. If there are no pressure signs I might step up a bit more, but I'll speak to VV first.
Once I find the combustion nodes I can start playing with bullet seating depths. This rifle fires fairly cheap RWS "Cineshot" ammo to a little under 1MOA, I'd like to get a little tighter than that, and should be able to. If I can, then I'll work up a good hunting load. The hunting bullets are a little expensive here, and the lead free even more so. So I want to practice load work with the "cheaper" stuff first.
I chose the CIP dimensions because the QL book explicitly states "Most values in the shipped database are related to piezoelectric measurement, which delivers normally higher, but true, numbers with rifle calibers than CUP – copper crusher method figures at both equal pressures. For safety reasons, in many European countries, it is illegal to use cartridges exceeding CIP maximum pressure values." I'm firing in Germany, so that's valid, and because the data is more biased to piezo, it seemed a better idea to go in that direction. It's amazing what you learn when you RTFM.
Yes, I'm working with the modern Steyr first, because I think there's a little more room for slight error there.
The Scorion is a HPBT bullet, which is why the A-Max numbers confused me so much! The Scenar might also be a good comparison. I was using the numbers from VV's online manual, as well as their app, thinking the app is most up to date (it matches the online version). I went to the app because the Scorion is a new bullet, and thought it might be listed.
Here's a funny thing about being in Germany. If you think there is a shortage in the US for US made bullets, imagine what it is like overseas! I went to one of the larger shops (in Ulm), and when I asked for Hornady bullets, the salesman just laughed. Scorions were in stock. IMR powder would also be difficult to get. Two good reasons for selecting the VV are it is a very clean burning powder, and it's available. I did score (online, from a place up north) the last 50 Woodleigh 160 grain 6.5mm round nose, and the last 100 Woodleigh 270 grain .375s. So I have that going for me.
I still need to email VV. I will try your "fill and weigh" trick, just to see where it ends up. I'll also look at the Scenar loads. Right now, I was leaning towards starting at 51,0 grains (just above the Hornady load, 2500 fps and 41Kish psi) and stepping up in 0.2 grain increments to either pressure signs or 54.3, which should give me 2663 fps and 49642 psi. If there are no pressure signs I might step up a bit more, but I'll speak to VV first.
Once I find the combustion nodes I can start playing with bullet seating depths. This rifle fires fairly cheap RWS "Cineshot" ammo to a little under 1MOA, I'd like to get a little tighter than that, and should be able to. If I can, then I'll work up a good hunting load. The hunting bullets are a little expensive here, and the lead free even more so. So I want to practice load work with the "cheaper" stuff first.