If one of you kind gentlemen that has access to Quickload would be so kind, I would like to know estimated chamber pressures and velocities of the following 45-70 loads:

All these loads are with cast 405 gr round nose flat point bullets with plain flat base (no gas check), and Rem 9 1/2 primers.

46.0 gr Varget (start)
50.0 gr Varget (Max)

31.0 gr IMR 4198 (Max)

47.0 gr Benchmark (start)
49.5 gr Benchmark (Max)

These are out of a 14" Contender barrel.

Thank you very much in advance for your help.

Quickload gives an useful approximation only with precise data; "...cast 405 gr round nose flat point bullets..." round nose or flat point? Seriously, you have to specify which bullet you use.

Don’t use QL for developing loads for straight walled cases. Read the QL manual.

Wildboar,

The bullet IS A "roundnose flatpoint". That's the name of the profile.

Mick,

I'm just curious on what Quickload says. I know what's listed on the Hodgdon powder website. I just want to know if Quickload is close, more or less than the website data.

Sorry, but the specifications of the bullet are too generic; furthermore MickinColo is right, Quickload loses accuracy with straight walled cases....I pass on that one.

Sigh,

I had no idea this was going to be this big of an issue.

I'm not trying to use Quickload information to develop ANY loads. I was only looking for an "outside" reference to compare to the load data listed on Hodgdon's own website for the same bullet weight, powder choice, and powder charges.

There is no trickery going on here. There have been no issues, KABOOMS, or anything even close to a safety problem. I was just curious and wanted the information. That's it, nothing else to the story.

The bullet in question is a Meister brand, commercially cast, and LISTED as a Round Nose Flat Point bullet. If you look at the bullet tip, son-of-a-gun, it actually has a round nose, with a little flat tip on it. That must be why they call it that.

I can only assume that what you are trying so eloquently to tell me is that the bullet profile is not listed in the Quickload tables. I would have no way of knowing that, as I don't HAVE Quickload. I can't "refer to the manual" either, for the same reason.

If anyone else would be so kind, I can only assume that it wouldn't make a safe load unsafe, nor an unsafe load safe, if you were to substitute a "round nose" of the same weight in Quickload. I was looking for chamber pressure and muzzle velocity, not down range trajectory, so I don't believe the bullet profile difference would matter much at all? Just the plain base, cast 405 gr?

Thank you.

Slowpoke Slim, PM sent.

Thank you to Wildboar and MickinCO both for your help.

Even if QL did a good job with straight wall cases, one would need to know the bullet length and overall loaded cartridge length to even begin to guess.

I hav recently acquired QL, but have not done any comparisons with chrono data and QL calculated/estimated information so I cannot vouch for accuracy in any straight wall or necked case regarding velocity.

For what it is worth, I have both QL and a 45-70. The calculated and actual are so all over the place that I consider QL unreliable for 45-70.

Example, for the load I was testing today, QL predicted 1700fps and I actually measured 1380fps. Since the 45-70 is such a large case, the loads are typically very powder position sensitive that I have experienced 350fps variation just from that. Put it all together and calculated versus actual variations can be extreme.