Is viht n110 powder the same load as h110 in a casull
- Thread starter Dano4734
- Start date
FrankenMauser
New member
Not the same.
And your assumption of 300 gr data being "okay" for 340 gr bullets is severely flawed. Data for heavier bullets is generally okay to use. Data for lighter bullets is generally bad.
Regardless of powder choice, follow standard reloading practice: Start low and work up.
Automatically jumping to a max load, or using lighter bullet data for a heavy bullet, is a great way to end up with a story that starts with your grandkids asking, "Grandpa, why do you only have three fingers on that hand?"....
A quick calculation in QuickLoad shows your 26.6 gr load under the Penn 340 to be at 89k psi. Even if QL is way off the mark with that prediction, it still indicates that you're not on the right track.
And your assumption of 300 gr data being "okay" for 340 gr bullets is severely flawed. Data for heavier bullets is generally okay to use. Data for lighter bullets is generally bad.
Regardless of powder choice, follow standard reloading practice: Start low and work up.
Automatically jumping to a max load, or using lighter bullet data for a heavy bullet, is a great way to end up with a story that starts with your grandkids asking, "Grandpa, why do you only have three fingers on that hand?"....
A quick calculation in QuickLoad shows your 26.6 gr load under the Penn 340 to be at 89k psi. Even if QL is way off the mark with that prediction, it still indicates that you're not on the right track.
NoSecondBest
New member
FrankenMauser gave you GREAT advice. If you don't have the loading data from a reliable source (and the "guy at the store" is not a reliable source") get the data from the manufacturer either in an actual loading manual or a published source. The interchange of powder numbers such as Viht and Hodgdon is NOT A RELIABLE method of choosing powders. I have both Viht and Hodgdon in 110 and they don't even look alike. I"m sure their burning characteristics are different, and possible to a very significant degree. Medical, legal, and reloading advice can be quite unreliable if coming from anything like the internet or people who give you their best guess. Keep all ten finger and FranenMauser forgot to mention your two eyes. Good luck and be safe.
NO.
A reloading manual will go a long way toward answering your questions and provide suitable load recipes. Buy one if you don't have one already, and study it. The high pressure Casull is not a forgiving cartridge when it comes to mistakes.
Sorry for being a bit tart, but your question is disturbing on a couple of levels.
A reloading manual will go a long way toward answering your questions and provide suitable load recipes. Buy one if you don't have one already, and study it. The high pressure Casull is not a forgiving cartridge when it comes to mistakes.
Sorry for being a bit tart, but your question is disturbing on a couple of levels.
Normally the bigger the bullet the less powder. Your big bullet is taking up more interior space. The smaller the interior space the more pressure that will be created by the powder charge. Like when you plane the heads on your car’s engine. Your compression ratio goes up. Hope this helps, always try to find a couple of sources when reloading if possible.
Check out this link. It may or may not be useful to you.
http://camdenrgc.com/reload/powderrates/relative_burn_rate_chart.htm
Get a few manuals too. Its all in black and white and vivid color.
http://camdenrgc.com/reload/powderrates/relative_burn_rate_chart.htm
Get a few manuals too. Its all in black and white and vivid color.
buck460XVR
New member
^^^NOW THAT'S FUNNY!!!
Lymann shows 22.7 under a 325gr Hardcast....so common sense tells me your 26.1 with a 340 charge is way over where you should be. Find a good reliable source and not "The sports store guy"
Different burn rates. H110 is Number 62 on Hodgdon's chart. N110 is Number 60.
The camdenrgc chart has far more powders on it. N110 is still a bit faster burning.
So the guy in the store is confused.
26.4 grains of N110 is the start load for a plated 300 grain .454 Casull. (No 340's on Vihtavuori's site.) Like Frank says, 40 grains difference is far too much. Assuming the Vihtavuori site is where you got that 26.1 figure. Which is wrong in any case.
26.0 of H110 is the MAX load for a 335 grain CAST bullet according to Hodgdon's site. Five grains is close enough.
The camdenrgc chart has far more powders on it. N110 is still a bit faster burning.
So the guy in the store is confused.
26.4 grains of N110 is the start load for a plated 300 grain .454 Casull. (No 340's on Vihtavuori's site.) Like Frank says, 40 grains difference is far too much. Assuming the Vihtavuori site is where you got that 26.1 figure. Which is wrong in any case.
26.0 of H110 is the MAX load for a 335 grain CAST bullet according to Hodgdon's site. Five grains is close enough.
As a long time reloader with little H110 (used some in the early '90s for 44 Mag. loads) and no Vihtavuori powder experience, here's what I'd do; I would find load data from both manufacturers and compare data with all the other components of your proposed load. Within 2% across the board? If not, no I would not cross reference data.
The gun counter clerk acting as a reloading expert is exactly the reason I have this rule for me and I suggest it to new reloaders; pay very little (no) attention to any forum expert, range rat, gun counter clerk, pet loads website, or gun shop guru for any load data. Powder and types suggestions are welcome, but when it comes to load data (powder charges, powder profiles) I rely on published reloading manuals, with data from the manufacturer if possible. This has worked quite well for over 30 years (I'll use a powder manufacturer's website on occasion, but 98% of the time it isn't necessary).
The gun counter clerk acting as a reloading expert is exactly the reason I have this rule for me and I suggest it to new reloaders; pay very little (no) attention to any forum expert, range rat, gun counter clerk, pet loads website, or gun shop guru for any load data. Powder and types suggestions are welcome, but when it comes to load data (powder charges, powder profiles) I rely on published reloading manuals, with data from the manufacturer if possible. This has worked quite well for over 30 years (I'll use a powder manufacturer's website on occasion, but 98% of the time it isn't necessary).
DO NOT USE BURN RATE CHARTS TO DERIVE LOADOUTS ( ! )
Those charts tell you absolutely NOTHING about how a powder will react in a cartridge/under pressure/as that pressure changes.
It so happens that Vihtavuori N-110 is a totally different powder from H110/W296.
On the issue of similar "issued/published" burn rate:
See https://www.thehighroad.org/index.php?threads/causes-of-low-pressure-223.837862/page-2#post-10858322
For H-110/W296 versus Vihtavouri N-110 specifically, see below:
CAUTION: The chart/post includes load data generated by calculation in QuickLOAD software based on a particular powder lot, the assumption the primer is as mild as possible, and assumptions about component, chamber and gun geometry that may not correspond well to what you have. Such data should be approached by working up from published starting loads. USE THIS DATA AT YOUR OWN RISK. Neither the writer, The Firing Line, nor the staff of TFL, nor QuickLOAD's author nor its distributor assume any liability for any damage or injury resulting from use of this information or information derived from it.
See also:
https://www.thehighroad.org/index.php?threads/h110-vs-v110.813485/#post-10408371
.
Those charts tell you absolutely NOTHING about how a powder will react in a cartridge/under pressure/as that pressure changes.
It so happens that Vihtavuori N-110 is a totally different powder from H110/W296.
On the issue of similar "issued/published" burn rate:
See https://www.thehighroad.org/index.php?threads/causes-of-low-pressure-223.837862/page-2#post-10858322
For H-110/W296 versus Vihtavouri N-110 specifically, see below:
CAUTION: The chart/post includes load data generated by calculation in QuickLOAD software based on a particular powder lot, the assumption the primer is as mild as possible, and assumptions about component, chamber and gun geometry that may not correspond well to what you have. Such data should be approached by working up from published starting loads. USE THIS DATA AT YOUR OWN RISK. Neither the writer, The Firing Line, nor the staff of TFL, nor QuickLOAD's author nor its distributor assume any liability for any damage or injury resulting from use of this information or information derived from it.
See also:
https://www.thehighroad.org/index.php?threads/h110-vs-v110.813485/#post-10408371
.
Last edited:
buck460XVR
New member
^^^I agree. Just a quick look thru various calibers and comparing load recipes, H110 generally shows a significantly heavier charge than N110 for similar bullets and velocities. This tells me that load recipes are not interchangeable.
NoSecondBest
New member
Good move on getting more manuals. You need several to do a sanity check once in a while.