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For proof of Pachmayr's very early start with spherical bushings, check.

Auto Spherical Oversized and Drop-In Bushings and Rings. Spherical Rings are manufactured from either STRESSPROOF or FATIGUE-PROOF carbon steel which are later coated with TiN (Titanium Nitride) which provides surface hardness and lubricity. Rings are selected to be” over the OD of the barrel. Oct 03, Drop-In bushings are designed to fit in a slide with standard dimensions at bushing opening.

Oversize bushings have extra material on ourside diameter and will require fitting to insert into busing opening of slide. The spherical bushing is designed to increase accuracy and reliability by maintaining perfect alignment from barrel to slide.

Maximum Accuarcy; Drop-In Convenience. Separate, ultra-hard, spherical, internal ring pivots on its horizontal axis inside the unique, precision-machined bushing. Absolutely prevents barrel spring. Provides the easiest, longest wearing, closest fitting barrel bushing setup available.

Aug 25, Posts. #4 Aug 22, I have a shooter I sponsor and I put a Briley Spherical bushing in his gun and it has over 10K rounds in competition without a problem. Just make sure you get a bushing as close as possible to the barrel and you'll have an accurate pistol that is easy to keep that way in the shrubfell.buzzted Reading Time: 3 mins.

Apr 02, The spherical barrel bushing comes from Briley Mfg. in Houston. The outer bushing has an inner donut that is normally only larger than the actual OD of the barrel. The inner ring"donut" floats in the outer housing and when the gun cycles the inner ring allows the barrel to move up and down so you don't have any slop in the bushing around. May 21, Classifieds. k. Gender:Male. Location:KC area. Share. Posted May 14, Just installed Briley spherical bushing on aeasy to fit (used an oversized OD) perfect fit to barrel (order spherical part over bbl.

od) Like it alot, improved accuracy over worn match bushing.