EARNEST'S CROWN HAMMER MOD

Jump to latest Follow Reply
That's 89.7 FPE! That's more like the power I need. With a high ballistic coefficient slug of similar weight and speed (44.75gr/950FPS), assuming that accuracy is not compromised, the Crown modified this way might be a viable and more accurate replacement for my hotrod Condor for taking coyote and deer. I'm getting the job well done with my .25 Condor (90-100 FPE). Do I really need magazine feed (for quick follow-up shots) as opposed to single loading the Condor, when all I really need is one shot if I'm patient and pick my shot? Still debating! Wonder if similar performance (FPE) can be achieved with an Impact similarly modified to produce 90ish FPE? I'd rather have a bullpup to replace my Condor, that is, if I ever replace it. Decisions.....Decisions!
 
Upvote 0
Well I recieved version 3 from Earnest today..

FX Crown Power Kit

Custom Item Number 19902, 19215

This mod will a solutely make a difference in shortening locktime.

To take advantage of max power settings. You will need to modify

Your regulator as described in another post here..

I am shooting 25cal jsb mk2s at 930fps..

Ignoring the regulator max of 150bar.

Just keep in mind your shot count per fill will be effected..


 
Upvote 0
That's 89.7 FPE! That's more like the power I need. With a high ballistic coefficient slug of similar weight and speed (44.75gr/950FPS), assuming that accuracy is not compromised, the Crown modified this way might be a viable and more accurate replacement for my hotrod Condor for taking coyote and deer. I'm getting the job well done with my .25 Condor (90-100 FPE). Do I really need magazine feed (for quick follow-up shots) as opposed to single loading the Condor, when all I really need is one shot if I'm patient and pick my shot? Still debating! Wonder if similar performance (FPE) can be achieved with an Impact similarly modified to produce 90ish FPE? I'd rather have a bullpup to replace my Condor, that is, if I ever replace it. Decisions.....Decisions!
Click to expand...


I added a 3.25 gram hammer weight to my .30 impact 700mm and get a little over 960fps with 44.75g pellets at 160 bar (92 ft/lb) and 925 fps with a 51.2g cast hollow point (97 ft/lb). The lead weight added about 6.3mm of preload to the hammer spring.
 
Upvote 0
I am getting a few pms since I posted my recent data on this mod now available in version 3 at Fx usa..

Today I am now pushing those mk2s 940>950fps.. my reg still fine.. Remember?

I ignore the reg gauge and pay attention to fps.. The Regulator is now a real power ajuster and now allows the shooter to totally utilized the full power the Crown has.. Your Locktime is much shorter as well..

My Crown 25cal today shoots like a silenced 22 Rimfire with astound accuracy shot after shot.. So far anyway..lol

Any questions?

Call Fx and talk to Earnest.. He is the MAN
 
Upvote 0
You must log in or register to reply here.
Top Bottom
Back
Home
Forums
Resources
Menu