IPshooter wrote:Pär wrote: I have also just started to modify an Walther OSP Match (Ragnar Skanåker's former RF-pistol) to .22 LR and to comply with the new rules. I friend of mine has a modified Walther OSP 2000 and IM (not so humble)O it outperforms all other pistols incl all the new electronic Pardinis and everything by lightyears ;-)
Pär (that actually worked!),
Can you detail what changes were made to the OSP 2000 to make it legal now, and can you also compare and contrast this modified pistol with the Pardini. In what areas do you consider OSP 2000 to be superior to the new Pardini SP1 RF?
Thanks,
Stan
* Trigger mechanism exchanged to GSP or springs added to OSP to get 1 kg
* Barrel new in .22 lr, same lenght as OSP (85 mm?)
* Rear sight moved forward (dismounted the sight radius extender)
* Plastic handle to bolt/slide (what is the correct word?) exchanged to GSP .32 but without weights or custom made. In order to increase weight of slide a bit.
* OSP grip modified to comply with standard pistol rules.
* Some weights on barrel accoring to personal preferences
* Magazine from GSP or modified OSP mag.
Main advantage compared to stock Pardini is that the short barrel gives just right velocity (recoil) , about 255-260 m/s with "normal" 22 match ammo. The "recoil feeling" (actually time-tuning of cycle) can easily be tuned by adding or substracting mass from the handle of the slide
The The Pardini is just right with RWS Subsonic but excessive fast with most other ammos, incl the "new" SK and Lapua special RF-versions. Another advantage for the modified OSP is the price, that is about 15-30% of the Pardini's price... The modifications are really straight forward IMO. One major drawback might be of legislative/administrative nature, if it is problematic to get permit to do a calibre change of a pistol in your country.
I did shoot with Pardini GP with the old rules the last 9-10 years, but I never liked the SP for standard pistol. I have not tested the the SP1 RF, but I (maybe wrongly) assumes the difference to be non significant to the SP. The reason for this assumption is that I carefully tested my GPs side by side to electronic Pardini Schuman and found out that I thougt the diffrences to be fairly small and that I actually preffered the GP and its lower weight.
Of course, most other pistols can have the barrel shortend and most can use RWS Subsonic. But if I compare all new pistols (unmodified) to a modified old OSP, I prefer the OSP. I do not recommend such a conversion for shooter thats want a "out of the box" performing pistol. An OSP conversions should be considered as a mechanical project that will need some debugging afterwards....
Mvh, Pär