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Joined: May 2016
Posts: 3,281
Campfire Tracker
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OP
Campfire Tracker
Joined: May 2016
Posts: 3,281 |
Recently bought a 100 pack of Rim Rock 335 Tc w/gc. Have tried various loads of H322 with Remington 9 1/2’s and CCI 250’s . Rifle is 444ss micro groove . Shoots cast performance pretty good , but the Rim Rocks are wobbling . Enough that GC strike is visible on paper . 50yds Twist wrong for these bullets ? Cast Preformance is 260gr and 320 gr , both cutting perfect bullet holes . Thanks , Kenneth
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Joined: Apr 2010
Posts: 8,192 Likes: 4
Campfire Outfitter
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Campfire Outfitter
Joined: Apr 2010
Posts: 8,192 Likes: 4 |
Are they longer than the CP 320s? Could be twist or could be sizing coupled with a harder alloy that doesn’t bump up. I worked with a Microgroove 1894 44 that would keyhole .430 sized bullets that we’re too hard to bump up. I assumed they were undersized enough that they were stripping the rifling because larger bullets of the same profile shot fine.
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Joined: May 2016
Posts: 3,281
Campfire Tracker
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OP
Campfire Tracker
Joined: May 2016
Posts: 3,281 |
Yep , they are longer , that’s why I thought barrel twist might be a factor . Thought about trading it in on a newer one with Ballard rifling , I think it is a faster twist . But decided against that , 15 gr ain’t going to make any difference .
CP is only an inch lower than the FTX and RR is three inches lower with a slight key hole at fifty yds I figure bullet will be in a full tumble at 100 , so I guess I’ll just have to look at them , lol . Thanks for the response . Kenneth
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Joined: May 2016
Posts: 3,281
Campfire Tracker
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OP
Campfire Tracker
Joined: May 2016
Posts: 3,281 |
For what it’s worth , the 335’s are too long for micro groove thist . Got a reply from Rim Rock . Thought I’d throw it out there . Kenneth
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