Equipted wiht a new chronograph (thoughtfully provided by Omineca Source For Sports) I went to the range to check some loads for the Mighty 375 Ruger as well as my buddies 300RUM.
First up was the 300 RUM. Using 82gr of IMR 4350 and a 180gr TSX, 3 bullets went inot .70 " They were clocked at 3224, 3247, 3234 fps.
I was satisfied wiht that, but thought I woudl see if I coudl make a low cost round for practice and checking zero. Using a 180gr Hornady Interlock Spire Point, and 82gr of IMR 4350, I shot agroup rigth on top of the first one, enlarging the group to 1.2"
I was satisfied wiht that, so put the RUM aside and grabbed the Mighty 375 Ruger. I had lubricated the trigger abot, so it was a ittl esmoother, but still not my favorite. I'll ge tto it at some point.
First I shot the factory 270gr, which clocked at 2727,2715,2723 and made this group:
Next up was the 260gr Accubond, I shot groups in the 1-1.25" range with 83, 83.5gr H 4350.
When I got to 84gr, I got a nice .75" group, so made up 3 more rounds and shot this group:
84gr clocked at 2744,2738,2764 fps.
An excellent all purpose hunting load.
I tried some 270gr TSX and got groups around an inch. I wa sgetting near the end of the range session, it was hot and cold beer awaited, so I didn't experiment oo much wih tthe TSX, although they have been accurate everywhere I have tried them, and certainly could do better than an inch.
Through this shooting, there were a couple of groups that shot 2 together, and one an inch out, indicating that although already pillar bedded, it coudl do wiht some glass bedding.
First up was the 300 RUM. Using 82gr of IMR 4350 and a 180gr TSX, 3 bullets went inot .70 " They were clocked at 3224, 3247, 3234 fps.
I was satisfied wiht that, but thought I woudl see if I coudl make a low cost round for practice and checking zero. Using a 180gr Hornady Interlock Spire Point, and 82gr of IMR 4350, I shot agroup rigth on top of the first one, enlarging the group to 1.2"
I was satisfied wiht that, so put the RUM aside and grabbed the Mighty 375 Ruger. I had lubricated the trigger abot, so it was a ittl esmoother, but still not my favorite. I'll ge tto it at some point.
First I shot the factory 270gr, which clocked at 2727,2715,2723 and made this group:
Next up was the 260gr Accubond, I shot groups in the 1-1.25" range with 83, 83.5gr H 4350.
When I got to 84gr, I got a nice .75" group, so made up 3 more rounds and shot this group:
84gr clocked at 2744,2738,2764 fps.
An excellent all purpose hunting load.
I tried some 270gr TSX and got groups around an inch. I wa sgetting near the end of the range session, it was hot and cold beer awaited, so I didn't experiment oo much wih tthe TSX, although they have been accurate everywhere I have tried them, and certainly could do better than an inch.
Through this shooting, there were a couple of groups that shot 2 together, and one an inch out, indicating that although already pillar bedded, it coudl do wiht some glass bedding.
Last edited:
D
