Re: 7.65 ammo
Yes, you can rebarrel. Probably not the best thing to do, better to horse trade for a 9 mm pistol if you decide on a 9 mm. I forgot what the rest of the pistol was, but I for one like 120 mm barrels in 7.65 mm so I'm sure I or somebody would want the whole pistol it if the rest of it is decent.
Don't muck with the original spring. Get a replacement spring and try tinkering with that. Wolfe sells a kit with three springs in it for about $19.
Winchester ammo is a bit hotter than Fiocchi. Then there is hand loading. More on this later, much much more. In general it would be preferable to have a load tailored to the gun that to modify an original spring or have the spring too light for a decent load. Better to have a second spring than cut up an original.
The number of turns on a spring is not the whole story as the diameter and temper oft he wire it is wound form make a difference. It may not be an original spring.
The whole question of recoil springs has been added to my agenda on getting to the bottom of loading the 7.65 cartridge. I"ve run across a number of references to cutting the spring. This implies there are guns out there with cut springs. It is a shame that the factory ammo has been downloaded to the point one has to modify the pistol to shoot it. Ruger has been kind enough to donate two recoil springs for my research project. This will avoid cutting the original spring on my P89.
I think some of the information that will be coming out of this project will prove useful to the 9 mm shooters as well.
unspellable
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