Gona go hog hunting soon in Texas, so I loaded up some Barnes XPB 200gr and 275gr to test. I loaded the 200s with the intention of using them for deer here in Michigan, the 275s were planned for hogs.
With a little help from the Hornady and Lyman manuals and a lot of help from Hoot's entries on the XPBs, I decided on my recipes. I used once fired factory brass, cci 450 primers, and of course - Lil Gun powder. I used a light taper crimp and a modified 45/70 side crimp on all rounds.
My loads were particularly important to me because I have an 11.5" barreled SBR. I haven't seen much data for the shorter than 16" barrels. I didn't load up many for each charge. The bullets are about a dollar a piece after all.
I shot from a rest at 50yds - my rifle was wearing a 1-4 trijicon accupoint - so 100yds wasn't necessary and might not have produced what I was looking for with the low power scope. I also chronoed one shot from three separate loads from the 16" 450B I built for my father.
200gr XPB 41gr LG 2.183 COL
2455, 2247, 2249
200gr XPB 43.5gr LG 2.183 COL
2326, 2255, 2281 - 2616-16"barrel
Sorta all over the map, but good accuracy. Really glad with the results of the 275s.
275gr XPB 33gr LG 2.26COL
1962, 1820, 1806
275gr XPB 36gr LG 2.26 COL
2011, 1900, 1975 - - 2042-16"barrel
275gr XPB 40gr LG 2.26COL
2146, 2120, 2133 - - 2187-16"barrel
Keeping in mind that factory ammo chronos at about 2030fps in my 11.5" barrel, the 275s going an average of 2133 is a great and powerful round.
Inspired by Hoot's work, I had to do a water shot. The 275gr shot at 50yds from the 16" barrel going 2187fps did some damage.
The video of a few shots, targets, and the water shot can be seen here - http://youtu.be/TDz-J7UkVC8
Poor audio, but you get the idea.