[PlasticGuy]

Originally Posted by MagTen

I am using 3 different loads.

You have mentioned a few in this thread, but the one that started this thread was a 150 grain lead bullet over 4.2 grains of Bullseye.

You are using jacketed bullet max-load data with a lead bullet that's a few grains heavier. Lead will shoot faster for a given amount of powder, but it will also operated at higher pressures. You keep saying you have data for this load to prove it's safe, but I still don't see it. Am I missing something?

[PlasticGuy]

Originally Posted by RWBlue

Not for you, but Plastic guy. He was saying there are better powders. I would like to know which ones.

I don't know because I have never tried. I would guess the slowest powders you can find data for would be best. Bullseye seems like a pretty fast powder for that application. That's just an educated guess from loading heavy bullets for other handgun calibers with similar barrel lengths though.

My comments were not based around the fact that I have an idea for a better performing load, but rather that the load he is/was using is over-pressure.

[ss30378]

www.czfirearms.us/index.php?topic=46995.0


Neat load, i like seeing people push the envelope. 2.4 grains of unique with an oal of 1.100" pics are in there as well. Im sure most will say why, but why not. I like many handload to make what i want, and see just what i can do that i cant get from the factory. The cost savings is a bonus. If i wanted to handload just to equal factory fodder it takes all the fun out of it for me. Seems like it would be like buying a mustang and rebuilding the motor to stock specs... boring. For me its big heads monster cam, blower or turbo! I like seeing oddballs and things that are out of the norm. I know if i saw someone shooting keith bullets out of a 9mm at the range i'd be asking questions.

[MagTen]

Originally Posted by PlasticGuy

I don't know because I have never tried. I would guess the slowest powders you can find data for would be best. Bullseye seems like a pretty fast powder for that application. That's just an educated guess from loading heavy bullets for other handgun calibers with similar barrel lengths though.

My comments were not based around the fact that I have an idea for a better performing load, but rather that the load he is/was using is over-pressure.

It's not over pressure if it is 20 degrees outside.

[PlasticGuy]

Originally Posted by MagTen

It's not over pressure if it is 20 degrees outside.

How do you know?

[MagTen]

Originally Posted by PlasticGuy

How do you know?

We placed several loads in the freezor and cooled them. Had the chrony setup and shot them. Speed was reduced 15% from loads at room temp. If speed was reduced the pressures are reduced. I developed these loads to use in western NC in December.

[PlasticGuy]

Originally Posted by MagTen

We placed several loads in the freezor and cooled them. Had the chrony setup and shot them. Speed was reduced 15% from loads at room temp. If speed was reduced the pressures are reduced. I developed these loads to use in western NC in December.

Let me get this straight. You know velocities drop 15% when the cartridges are frozen because you have shot these over-pressure loads when they are not frozen?

[MagTen]

Originally Posted by PlasticGuy

Let me get this straight. You know velocities drop 15% when the cartridges are frozen because you have shot these over-pressure loads when they are not frozen?

We compared factory spec loads at 70 degree temps and froze loads as saw 15% drop across the board. Even the hottest Double Tap loads droppped 15%.

[PlasticGuy]

Originally Posted by MagTen

We compared factory spec loads at 70 degree temps and froze loads as saw 15% drop across the board. Even the hottest Double Tap loads droppped 15%.

So you have no idea if you get a 15% drop in velocity with the drop in temperature with that particular load. And you have no idea what the pressure is at any tempurature. Or am I missing something?

[Zombie Steve]

Originally Posted by MagTen

We compared factory spec loads at 70 degree temps and froze loads as saw 15% drop across the board. Even the hottest Double Tap loads droppped 15%.

Wonderful. Doesn't make a bit of difference unless you know what powder they're using (they don't often use canister powders) and you're using the same.

AA2230 is very temp sensitive, Varget is almost completely insensitive. Solo is reverse temp sensitive (higher pressures in the cold).

You don't have to kick water uphill to get a heavy 9mm bullet to go really, really fast.

[MagTen]

Originally Posted by Zombie Steve

Wonderful. Doesn't make a bit of difference unless you know what powder they're using (they don't often use canister powders) and you're using the same.

AA2230 is very temp sensitive, Varget is almost completely insensitive. Solo is reverse temp sensitive (higher pressures in the cold).

You don't have to kick water uphill to get a heavy 9mm bullet to go really, really fast.

I did not say I was using factory loads I said factory spec loads.

[Zombie Steve]

Must load your own double tap as well.