Accurize a P series pistol???

swampy · February 9, 2001, 11:28 AM

I have a Ruger P-89 SS (9mm)with realibility that will rival any AK and "combat" accuracy. I mounted an Optima red dot to improve the sight picture, but, even with a variety of reloads and commercial ammo, the group size at 25 yards firing SA only is not going to shame Sig 210s any time soon! For several reasons, I would like to improve its accuracy even though the resale value of the pistol does not justify doing so. However, after searching the internet and the book shelves, I haven't found helpful information for improving accuracy in the P series pistols. Seems people buy them and, other than a trigger job or sight change, they leave them stock. Anyone have any information on improving the accuracy of this pistol or know where I can find such information? Anyone know anyone that has accurized a P series? If so, what did they do to improve the accuracy (measured by group size at 25 yards)? Thanks.

Master Blaster · February 9, 2001, 02:05 PM

Here is a thought. I have heard that HK usp is acccurate because it has a rubber o ring around the barrel that acts like a 1911 bushing in a 1911. I am not sure how this works detail wise since i dont own a usp. I do own a p89 which I have put 2000+ rounds through. Its accuracy is good at 15 yards but the groups open up at 25. it seems that this gun needs some type of bushing for the barrel to slide fit, to ensure repeatable consistant lock up, maybe it could be adjusted by fitting the front of the square chamber to the slide better????. The barrel in my p89 is very tight to the slide, but something is lacking in the consistancy of the lock up that affects accuracy.

I have never fired the gun from a ransom rest though... so it could be my skill that is lacking and not the gun.

beemerb · February 9, 2001, 02:40 PM

The only thing I have heard about getting better accuracy from the P series are from people that where unhappy and sent them back to the Prescott plant where they are made.They then handfit and get much better accuracy.I don't know of anyone doing much work on them.I put a lot of work and money into one till I finaly gave up and sold it.Mine was real bad(8'at 20yrds).I got discourged and didn't even try the ruger plant.

February 9, 2001, 02:40 PM	#3
beemerb Junior member Join Date: October 2, 1999 Location: AZ Posts: 1,759	P series accuracy The only thing I have heard about getting better accuracy from the P series are from people that where unhappy and sent them back to the Prescott plant where they are made.They then handfit and get much better accuracy.I don't know of anyone doing much work on them.I put a lot of work and money into one till I finaly gave up and sold it.Mine was real bad(8'at 20yrds).I got discourged and didn't even try the ruger plant.

February 9, 2001, 11:28 AM	#1
swampy Member Join Date: August 10, 1999 Posts: 92	I have a Ruger P-89 SS (9mm)with realibility that will rival any AK and "combat" accuracy. I mounted an Optima red dot to improve the sight picture, but, even with a variety of reloads and commercial ammo, the group size at 25 yards firing SA only is not going to shame Sig 210s any time soon! For several reasons, I would like to improve its accuracy even though the resale value of the pistol does not justify doing so. However, after searching the internet and the book shelves, I haven't found helpful information for improving accuracy in the P series pistols. Seems people buy them and, other than a trigger job or sight change, they leave them stock. Anyone have any information on improving the accuracy of this pistol or know where I can find such information? Anyone know anyone that has accurized a P series? If so, what did they do to improve the accuracy (measured by group size at 25 yards)? Thanks.

February 9, 2001, 02:05 PM	#2
Master Blaster Senior Member Join Date: October 11, 1999 Location: One of the original 13 Colonies Posts: 2,281	Here is a thought. I have heard that HK usp is acccurate because it has a rubber o ring around the barrel that acts like a 1911 bushing in a 1911. I am not sure how this works detail wise since i dont own a usp. I do own a p89 which I have put 2000+ rounds through. Its accuracy is good at 15 yards but the groups open up at 25. it seems that this gun needs some type of bushing for the barrel to slide fit, to ensure repeatable consistant lock up, maybe it could be adjusted by fitting the front of the square chamber to the slide better????. The barrel in my p89 is very tight to the slide, but something is lacking in the consistancy of the lock up that affects accuracy. I have never fired the gun from a ransom rest though... so it could be my skill that is lacking and not the gun.