June 11th, 2011

Winchester WXR Powder Rivals RL22 at Much Lower Cost ($13/lb)

Here’s a good deal for magnum shooters on a tight budget. If you need a quality, slow burn-rate powder suitable for large-capacity cartridges, check out Winchester WXR powder. Production of WXR has been discontinued, but quantities are still available. PrecisionReloading.com has 8-lb jugs of Winchester WXR for $104.49, which works out to just $13.06 per pound. Grafs.com has 1-lb containers of Winchester WXR for $13.99, on “close-out” pricing (limited quantities, no back-orders). Winchester WXR is a Swedish-made, double-base, slow-burning extruded propellant used in larger-size cartridges. WXR is an excellent choice for the .25-06, .270 Win, .30-06, 7mm Rem Mag, 300 Win Mag, 7mm WSM and 300 WSM cartridges. Some industry observers have suggested that Winchester WXR is virtually the same as Alliant Reloder 22. We can’t confirm that, but the load recipes are similar. Keep in mind that, at $13.06 per pound, WXR is nearly six bucks per pound cheaper than Reloder 22 (in 5-lb containers).

The Reload Bench’s Burn Rate Comparison Chart shows WXR having a burn rate very close to Vihtavuori N165 and IMR 7828. In tests with a .25-06, WXR delivered velocities 30 to 60 fps higher than Reloder 22, with equal loads grain for grain (see WXR vs. RL22 report). In the .25-06, the WXR was slightly more energetic than Reloder 22, so a max load with WXR proved to be about 1.0 grain lower than a RL22 max load. Another WXR user writes: “I’ve been using it for the last three years in my 7 STW, 7mm Mag, 300 WSM, 300 Win Mag, .30-06 and .270 Win. It chronographs nearly identical to Reloder 22, so keep that in mind when working up loads with it. From what I’ve researched about it, the company in Sweden who makes powder for Norma, also makes Reloder 22 and made Win WXR. Remember powder can vary slightly from lot to lot, so start low and work your way up.”

Winchester Catalog with WXR Load Data (PDF File)

Burn rates (faster to slower):
152. H4831 (Hodgdon)
153. MRP (Norma)
154. Reloder 22 (Alliant)
155. WW785 (Winchester)
156. H450 (Hodgdon)
157. Mag Pro (Accurate)
158. N165 (Vihtavuori)
159. WXR (Winchester)
160. 7828 (IMR)

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