Trapshooters Forum banner

Status
Not open for further replies.
1 - 9 of 9 Posts

·
Registered
Joined
·
106 Posts
Discussion Starter · #1 ·
I,would like to know how to compare lup to psi if possible. Also,do the numbers have any berring on recoil ? I'm Trying to find a load for caps around 1200 fps that is not at the high end of recoil. I'm now shooting from 26 and it seems like the shot takes forever to reach the target. 17.9 grains clays,waa12 wad, win-209 primer and AA hulls. Is the (time to break) just a head game or would a faster load help? Hope someone can help me out. Thanks, Mike K.
 

·
Registered
Joined
·
106 Posts
Discussion Starter · #2 ·
I,would like to know how to compare lup to psi if possible. Also,do the numbers have any berring on recoil ? I'm Trying to find a load for caps around 1200 fps that is not at the high end of recoil. I'm now shooting from 26 and it seems like the shot takes forever to reach the target. 17.9 grains clays,waa12 wad, win-209 primer and AA hulls. Is the (time to break) just a head game or would a faster load help? Hope someone can help me out. Thanks, Mike K.
 
G

·
There is no direct formulation for changing LUP measurements to PSI measurements as far as I know. It seems to me that when I read LUP measurements it is a direct replacement recipe for factory shells. This isn't always the case, but frequent enough to say.

I've found Clays to be a bit punchy, much like Titewad, for 1 1/8 oz loads. Loading into straight hulls, Federals, will tame this a bit.

There are a lot of powders out there to acopmlish your task, I'd like Hodgdon's Tightgroup the best. It's a great year round performer and is easy on recoil. If it's good enough for Remington in their Nitro 27 'caps shells (1235fps), it's good enough for me.

PSI doesn't correlate into recoil, but speed and load does. PSI will however affect hull life.

ec90t
 

·
Registered
Joined
·
2,060 Posts
As noted, there is no way to adjust LUP to PSI.
No, pressure is not a component in the recoil equation.
1200 FPS and 1 1/8 oz load, plus the weight of your shotgun pretty much define the recoil. Some say a slower burning powder can make a difference, i.e. Green Dot vs. Red Dot, but few can really differentiate the difference. Reduce the shot load, or reduce the velocity, or make your gun heavier are about the only three options you have within the laws of physics.
 

·
Registered
Joined
·
10,428 Posts
I prefer Unique for my HCP load. I get 1250 fps at around 8500 PSI. Felt recoil is mild, the load gets to the target very fast and hits very hard.

Using a Federal Gold Medal hull with good components works well.
 
G

·
Don,

I couldn't tell you as I've never seen any published data for Federal, or any other straight case hull. A call to Hodgdon might give you some better info.

ec90t
 

·
Registered
Joined
·
7,593 Posts
ec90t you might try this site as it has quite a few loads for Federal Gold Medal hulls. Also Alliant's web site has loads for Federal hulls.

Bob Lawless
 
1 - 9 of 9 Posts
Status
Not open for further replies.
Top