Well in my quest to find the ultimate powder puff 9mm round I'm trying

147gr lead bullets with 3gr of Accurate #2. I tested them today

and it's probably the closest you're gonna get to 22lr in a centerfire

pistol. Very sweet round and noticeably less muzzle rise. I think this

might be my dedicated static/knockdown round. I don't have a chrono

but I'd be shocked if it made minor power factor.

 

Anyone else experiment with light loads?

I've gone as low as 3.5gr of Titegroup (long OAL) in .40 with 180gr pills. It was really light, the ejected shells were landing almost at my feet.

 

It was too easy to limp-wrist it though shooting weak handed. I don't go that light for IDPA even though I suspect it would make 125 PF.

I've gone as low as 3.5gr of Titegroup (long OAL) in .40 with 180gr pills. It was really light, the ejected shells were landing almost at my feet.

 

It was too easy to limp-wrist it though shooting weak handed. I don't go that light for IDPA even though I suspect it would make 125 PF.

 

The .40 minor load that I have only played with practicing are pretty nice, will see how they do at the next steel match. I'm using 3.5gr of N320, 180gr FMJ DP bullets and CCI primers @ 1.125, I am right in the 125PF +/- a few.

 

By the way, I normally have my Crono in the car, so if you want to see what yours are at, the next time we are both at OB ask and the normal, you shoot it, you buy it clause.

Do you guys notice a big difference in say .01 more or less of OAL?

 

Next time I go to OB I'll try to find you, thanks for the offer. I really

wonder if I am making minor at all.

Do you guys notice a big difference in say .01 more or less of OAL?

 

 

When I go from 1.130 to 1.125 I notice a difference with this particular powder. So 0.01 should be even more pronounced.

I'll say that I'm not thrilled with the heaviest possible bullet for the caliber at reduced power loads. Yes 147s, 180s (or even 200s) and 230s result in a "softer" feel but at the same powerfactor they also result in a more sluggish slide movement. While the cycle time is still faster then any splits I'm going to shoot, it visually bothers me because it feels like I'm waiting an eternity for the front sight to settle back on target. I prefer the midweight bullets (124, 165-170, 200) as they are still softer feeling then the lighter ones (115, 150-155, 180) while maintaining a reasonable slide velocity.

 

Your mileage may very

Well in my quest to find the ultimate powder puff 9mm round I'm trying

147gr lead bullets with 3gr of Accurate #2. I tested them today

and it's probably the closest you're gonna get to 22lr in a centerfire

pistol. Very sweet round and noticeably less muzzle rise. I think this

might be my dedicated static/knockdown round. I don't have a chrono

but I'd be shocked if it made minor power factor.

 

Anyone else experiment with light loads?

 

How do you calculate the foot pounds of energy for that round?

(1/2) * (mass) * (velocity)^2

 

Watch your units

 

EDIT: for a 147gr (9.5g) bullet at 1000 fps (305 m/s) I think that should be 443 J or 326 ft-lbs

I'll say that I'm not thrilled with the heaviest possible bullet for the caliber at reduced power loads. Yes 147s, 180s (or even 200s) and 230s result in a "softer" feel but at the same powerfactor they also result in a more sluggish slide movement. While the cycle time is still faster then any splits I'm going to shoot, it visually bothers me because it feels like I'm waiting an eternity for the front sight to settle back on target. I prefer the midweight bullets (124, 165-170, 200) as they are still softer feeling then the lighter ones (115, 150-155, 180) while maintaining a reasonable slide velocity.

 

Your mileage may very

 

I haven't noticed it yet, but I do know what you're talking about. I've shot some rounds/guns that had

that slow-mo feeling slide. I didn't mind it though.