219 Donaldson Wasp
This cartridge originated in 1937, shortly after the 219 Zipper was introduced by Winchester. It is made by shortening, re-necking and blowing-out 219 Zipper cases. The Donaldson Wasp became the most popular adaptations, and more or less the standard. Many benchrest matches have been won with the 219 Wasp, and it has a well deserved reputation for excellent accuracy. It has been used mostly in custom made single shot rifles because of the rimmed case.
The 219 Wasp is another 22 wildcat that achieved notable, continued popularity. It is one of the better wildcat numbers, but like most of the other offbeat 22's, has been overshadowed by the 222 Remington. The 219 Improved Zipper developed by P.O. Ackley in 1938 is a more practical cartridge because it is made by simply fire-forming standard 219 Zipper cases in the improved chamber. The improved version offers velocities similar to the standard Wasp with significantly lower pressures. Cases for these wildcats can also be made from 25-35 and 30-30 brass. It is claimed by some authorities that breech pressures developed by popular loads in the Wasp can run as high as 55,000 to 60,000 psi.
Source: Cartridges of the World
|219 Donaldson Wasp Reloading Data|
|Bullet (grs.)||Powder / (grs.)||MV||ME||Source|
|45 SP||3031 / 30.0||3780||1425||Ackley|
|45 SP||H380 / 33.0||3510||1215||n/a|
|50 SP||IMR 4064 / 32.0||3605||1440||Ackley|
|50 SP||H-380 / 32.0||3370||1255||n/a|
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