6.5cm discovery

[skipglo]

I wasn't saying to use the 50 fps per grain as an absolute value, and I understand it's not completely linear through the spectrum of the entire charge, but you did get me curious. So in two examples of ammunition manufacturing, the 5 fps per grain.10 grain, or 50 fps per grain isn't far off.

In the Hornady manual, the use of H4350 in 6.5 CM (which is what the OP conversation was about), the charge of 41.1 for 2600 MV and the charge of 42.8 for 2700 MV. That's about 58.8 fps per grain.

In the Nosler manual, the charge of 37.0 for 2485 MV and the charge of 41.0 for 2699. That's about 53.5 fps per grain.

Again, I never said this should be used in load calculation or load development. It was in reference to show an approximation for how much velocity was being possibly left on the bench by using a lower charge.

I guess if 2050 fps is close enough for you to 2699....who am I to disagree ?

 

[bomberodevil]

I guess if 2050 fps is close enough for you to 2699....who am I to disagree ?

I guess your beef is with the engineers of Hornady and Nosler, but you be you.

 

[skipglo]

I guess you're beef is with the engineers of Hornady and Nosler, but you be you.

I'm sure that a single load somewhere will be 50fps/gr. But a RULE OF THUMB...this isn't... perhaps the example of my 50 BMG could be discussed with the engineers at Hornady...or my .460 Weatherby, .338 Lapua, .300 Weatherby......223 wssm...any .223 etc....etc.....not a good example at all! To which the engineers might retract their statements....or say..." Well we were only saying this for this very specific example" . Sorry...enough said.

 

[Treeslug]

I did not believe any of the Creedmoor hype. I was a long action cartridge hunter. 30-06, 270 Win, 338 Win Mag. Then I got into 270 WSM and found that short action cartridges could still kick ***. My Dad always killed deer with .308 Winchester.

My first 6.5 Creedmoor in a Sauer 100 was totally shocking to me. Another followed in Mauser M18. And another Sauer 100 in 30-06 and was blown away that kind of accuracy could come out of a larger, more powerful cartridge.

When you have pinpoint accuracy, you can blow their brains out.

If you have pinpoint accuracy and EVERYTHING goes perfect—you can blow their brains out. If one LITTLE thing goes wrong, you could blow their bottom jaw off, or their nose off. I prefer to blow their heart and lungs to bits and pieces.

 

[Jon Bischof]

If you have pinpoint accuracy and EVERYTHING goes perfect—you can blow their brains out. If one LITTLE thing goes wrong, you could blow their bottom jaw off, or their nose off. I prefer to blow their heart and lungs to bits and pieces.

If your bullet passes through the back of the head first, it doesn't much matter what happens to their lower jaw on its way out.