Browning Performance Rimfire

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I bought 1000 rounds of this a couple weeks ago. I tried it out in my model 17 today. This stuff is noticeably more potent when it goes off, and extraction is hard. These are 40grain bullets with a MV of 1455 fps. I think it will go in the bolt action rifle.

Comments?
 
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I bought 1000 rounds of this a couple weeks ago. I tried it out in my model 17 today. This stuff is noticeably more potent when it goes off, and extraction is hard. These are 40grain bullets with a MV of 1455 fps. I think it will go in the bolt action rifle.

Comments?

That's cooking for a 40 grain bullet.
 
“ Noticeably more potent” is not a standard unit of measure. If you don’t have a chronograph, you don’t have a clue.

The other day I was shooting a hand load for 357/158 grain in a 5 inch Python. I was using a full charge of H110. Big boom, lots of flash, potent recoil. 1300 fps.

I then tried a load with a less than full charge Accurate #9. Noticeably less flash and bang. Recoil was milder. I would have guessed that load to be moving that 158 at 1100, maybe 1150….. nope. Same 1300 fps.
 
“ Noticeably more potent” is not a standard unit of measure. If you don’t have a chronograph, you don’t have a clue.

The other day I was shooting a hand load for 357/158 grain in a 5 inch Python. I was using a full charge of H110. Big boom, lots of flash, potent recoil. 1300 fps.

I then tried a load with a less than full charge Accurate #9. Noticeably less flash and bang. Recoil was milder. I would have guessed that load to be moving that 158 at 1100, maybe 1150….. nope. Same 1300 fps.

I am going to have to go by hard extraction and mor recoil. I am not buying a chronograph. I loaded a cylinder alternating cci standard velocity with browning ammo. Increased recoil
 
First of all NO .22 LR ammo is going to actually damage a S&W model 17. Good ammo on sale right now at Rural King. Aguila 40 gr plated HV for $32 a brick. I bought a 5,000 rd case right before the pandemic when prices were at rock bottom. Chronographed it out of my old three screw Ruger Single Six. Better than most US made ammo. Good velocity with extreme spreads half that of US brands.
 
“ Noticeably more potent” is not a standard unit of measure. If you don’t have a chronograph, you don’t have a clue.

The other day I was shooting a hand load for 357/158 grain in a 5 inch Python. I was using a full charge of H110. Big boom, lots of flash, potent recoil. 1300 fps.

I then tried a load with a less than full charge Accurate #9. Noticeably less flash and bang. Recoil was milder. I would have guessed that load to be moving that 158 at 1100, maybe 1150….. nope. Same 1300 fps.

Very interesting.... just curious... is there a logical explanation for your results? :confused:
 
Very interesting.... just curious... is there a logical explanation for your results? :confused:



Note he lists two different powders. They're going to perform differently. One might be a fast-burning powder, the other may not be. Or they both are or aren't.

Short version is, it simply just happened, IMO. :cool:
 
All the hate for Winchester 22LR, but I've had far better luck with most of it than the cheap Remington 22LR like the Thunderbolts. I've actually found the old Winchester Dynapoints to be the most accurate non match ammo in several of my rifles like my Anschutz and Cooper.

But back to the Browning labeled stuff, I'd be curious to chronograph it like the others have said.
 
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From what I’ve often read, 296/H110 was developed for the M1 Carbine round. But it works well in Magnum revolver rounds. H110 starts doing weird stuff if you load it much heavier than the book suggests. In revolvers, velocity may actually go down. Extreme spreads open up. BUT if you’re interested in loading for 357 RIFLE, you can’t beat the stuff. I’ve pushed 158s over 1900 fps.

Accurate 9 is a pistol powder. The Acurate 9 that I have now seems to be hotter than the books suggests. I get 150+ fps than what the book lists. In other words, I get top velocities. But I never load as much powder as they say is safe. In a rifle, A9 gives me only 1600 fps.

So with the H110, I’m burning 5 more grains than A9. In a revolver, more jet effect with H110? More unburdened powder in the air means more flash, maybe a bigger boom.



My 357 rifle rounds are loaded with H110. Revolver, A9.

Different powders, different applications.
 
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I tried a few boxes of Browning 22RF ammo when it first hit the market years back. I found it to be pretty bad! I do believe Winchester made it for Browning as they do not make ammunition themselves. I believe the ammo was an embarrassment for what was a very high quality gun maker.
 
So… if a full charge of Accurate #9, makes less flash and bang, milder recoil, WHY would you use a full charge of H100 with a big flashy boom, potent recoil, when they both produce the SAME velocity?

I would imagine you guys that have been reloading for umpteen years would by now have what you do down to an art and SCIENCE.

I’m trying to understand a little more physics than “it simply just happened”.

But, what I know about reloading ammo wouldn’t make a little pimple on a gnarly reloader's butt.
 
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