.44 Russian: min. fps?

I know a 4 gr unique load with a 200 Gr lead bullet is a pretty tame load id not want to load much less than that.
Theres alot of modern guns blowin up with low power smokeless loads they call it detonation or something like that.
look it up on the net before you load down to much the top straps have been busted clean thru on SAA colts which are strong guns with to light a load of smokeless.
 
Anything less than 500 fps and it is no longer considered a firearm, ooops that was for pellet guns:)
Are you thinking what the minimum velocity could be and still be accurate???
 
I know a 4 gr unique load with a 200 Gr lead bullet is a pretty tame load id not want to load much less than that.
Theres alot of modern guns blowin up with low power smokeless loads they call it detonation or something like that.
look it up on the net before you load down to much the top straps have been busted clean thru on SAA colts which are strong guns with to light a load of smokeless.

This is good info, thanks for the warning mark. I was always under the impression that this wasn't an issue in straight walled cartridges, guess I was wrong.
 
This is good info, thanks for the warning mark. I was always under the impression that this wasn't an issue in straight walled cartridges, guess I was wrong.

Theres some info on the net about this it happens in any case type and the damage i seen was bad cylinder blowin apart top strap strait up in the air turned me right off light or to light a loads.
I prefer a good charge in the 44 russian myself of 5 grs of unique.
Tho i shoot 4.5 in the S&W DAs all the time with no signs of excess presure.
The same guns handle the winchester cowboy factory ammo in 44 Sp which is loaded to 730 Fps or so.

No i wont ever try to light a load below recomended loads in the books it has something to do with the extra air space and the powder.
I dont claim to understand it but im smart enough to fear it LOL
 
Anything less than 500 fps and it is no longer considered a firearm, ooops that was for pellet guns:)
Are you thinking what the minimum velocity could be and still be accurate???

that applies to firearms also doesn't it? unless of course something changed that should make the .41 rimfire derringer a non gun at 425 fps.
see page 8
http://www.crgunclub.bc.ca/PDF/09Import-Export.pdf

page 9 here
http://www.cbsa-asfc.gc.ca/publications/dm-md/d19/d19-13-2-eng.pdf

(d) Low muzzle velocity/energy guns – Any barrelled weapon that is not designed or adapted to discharge projectiles at a muzzle velocity exceeding 152.4 metres per second (500 feet per second) and at a muzzle energy exceeding 5.7 Joules, or to discharge projectiles that are designed or adapted to attain a velocity exceeding 152.4 metres per second (500 feet per second) and an energy exceeding 5.7 Joules. Both thresholds of 152.4 mps and 5.7 Joules must be exceeded for the firearm to be considered “controlled”. This requirement exempts firearms that fire below the threshold velocity with a standard projectile, but exceed the threshold velocity when fired with a high-velocity projectile.
 
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that applies to firearms also doesn't it? unless of course something changed that should make the .41 rimfire derringer a non gun at 425 fps.
see page 8
http://www.crgunclub.bc.ca/PDF/09Import-Export.pdf

page 9 here
http://www.cbsa-asfc.gc.ca/publications/dm-md/d19/d19-13-2-eng.pdf

No.

A 41RF derringer built before the 1898 cutoff date is a non-gun. One built after that date requires registration.

Not an airgun, means that airgun rules do not apply to it.

Cheers
Trev
 
Theres some info on the net about this it happens in any case type and the damage i seen was bad cylinder blowin apart top strap strait up in the air turned me right off light or to light a loads.
I prefer a good charge in the 44 russian myself of 5 grs of unique.
Tho i shoot 4.5 in the S&W DAs all the time with no signs of excess presure.
The same guns handle the winchester cowboy factory ammo in 44 Sp which is loaded to 730 Fps or so.

No i wont ever try to light a load below recomended loads in the books it has something to do with the extra air space and the powder.
I dont claim to understand it but im smart enough to fear it LOL

Found an interesting statement from a fellow on another forum in regards to this matter in rifle cartridges. Very interesting and helps put it into perspective:

the pressure problem you are referring to is called S.E.E.or secondary explosion effect.it happens when a light charge of slow powder partially ignites,but because of a low pressure generated.pauses,drops pressure to nearly zero,and then ignites.where the trouble begins is when the the powder first ignites, the bullet is started into the rifling as well as the unburned powder stacked up behind it causing a bore obstruction. this wasnt fully understood untill the transducer was used and pressure curves could be graphed.SEE is difficult to produce at will even under lab conditions.i think slow ball powders in large cases were the worst,but even stick powders have caused this.55 gr of 4350 should be about 80% load density,maybe a bit less

After reading into it, fast powders have produced this result as well, some theories suggest that light loads expose too many powder granules to the primer jet at once.

Hell who knows really, definitely not a good idea though it seems lol!.
 
Anything less than 500 fps and it is no longer considered a firearm, ooops that was for pellet guns:)
Are you thinking what the minimum velocity could be and still be accurate???

Thats not true for firearms that can shoot newer ammo that goes over thats for pellet guns.
 
A point that hasn't been mentioned - I've read and somewhat followed the theory that if wadding is placed ahead of the powder loads it could prevent such a detonation?
Idea is that the wadding keeps the load at least contained at the back of the cartridge so it isn't loosely distributed, but rather held in place.

No real proof that it works or not, but figured I'd mention it in case someone else had better info when using light loads.
 
About 650 fps will shoot reliably and well in most revolvers. I wouldn't like to go much slower than that.
3 gr of trailboss /200 LRNFP / 6" bbl will make about 650 fps
4 gr of trailboss / 200 LRNFP/ 6" bbl will produce about 750 fps
Trailboss is specifically made for cowboy type shooting - low velocity, low pressure cartridges with excellent case fill properties, so no chance of SEE (secodary explosion effect).
make sure you don't compress trailboss because it can create a sharp pressure spike if it is compressed. http://www.imrpowder.com/data/handgun/trailboss-feb2005.php

4.5 gr Unique is a very good load, will make about 775-800 fps with the 200 gr boolit in a 6" bbl. You don't need filler with this load.
 
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