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It’s chambered 25 CM to be a NRLH light gun
Just shooting skills? I've been looking into NRL matches and concluded my 25CM with similar performance wouldn't make power factor.I loaded virgin alpha 25 CM brass with cci 450, 134 eldm, and 39 gr of H4350. Shots 12-21 averaged 2642
With a 134 grain you only need to be at 2835fps to make power factor. Very easy to do unless you have a short barrel. Tons of people are shooting and winning with 25 Creed.Just shooting skills? I've been looking into NRL matches and concluded my 25CM with similar performance wouldn't make power factor.
I don’t know the power factor number that’s needed but I’m at about 2690fps with 134s in a 20” barrel. I don’t believe that’s high enough to make it.With a 143 grain you only need to be at 2835fps to make power factor. Very easy to do unless you have a short barrel. Tons of people are shooting and winning with 25 Creed.
That is not high enough. Power factor is projectile weight(grains) X Velocity(fps) >=380,000I don’t know the power factor number that’s needed but I’m at about 2690fps with 134s in a 20” barrel. I don’t believe that’s high enough to make it.
Yeah I have a short barrel, if I go I'll just take my primary hunting rifle in 6.5 PRC.With a 134 grain you only need to be at 2835fps to make power factor. Very easy to do unless you have a short barrel. Tons of people are shooting and winning with 25 Creed.
Ah, gotcha. Mine is only 19" and was chambered with the 131BJ reamer so the throat is pretty short with 133's. Only 100rds on it so far, but I get ejector marks at 39gr with a can on, so I don't think I could get anywhere near without throating it out and riding the edge. Still heavily considering punching it out to 25-284 and throated for the longer 130's..Mine is 24” which is gonna be borderline, but after I get all 200 shot once I’ll work up and find pressure. Hoping 41.5-42 gr of H4350 gets me to that 2850ish. If not I’ll run the 138 Atips once they are available. I bet getting those to mid/high 2700’s would be doable.
I’m pretty deep into NRLH, have a factory and heavy build. This year will be 3rd year and probably 10-12 2 day matches.
You’ll save about 5 oz in my experienceI know this is an older thread. I’m considering converting my 7rm to 7prc the reason is really to get a shorter (ease of carry) and ideally lighter barrel. However. It is looking as if the weight savings may not be there. The 7rm is a Tikka Superlite in 24”. Even with a Tikka Lite Hybrid and the helical 12 fluting on a 20” barrel, will I save more than about 2 ounces?
I know this is an older thread. I’m considering converting my 7rm to 7prc the reason is really to get a shorter (ease of carry) and ideally lighter barrel. However. It is looking as if the weight savings may not be there. The 7rm is a Tikka Superlite in 24”. Even with a Tikka Lite Hybrid and the helical 12 fluting on a 20” barrel, will I save more than about 2 ounces?
Why not cut the 7RM back to 20"?
Deep diminishing returns here! Going to leave as is.I missed where you said super lite. Yeah 2 oz is probably about right
2 oz is a lot when you’re building a light weight rifle . An ounce here and an ounce there adds up.Deep diminishing returns here! Going to leave as is.
Well, I don’t want it to be too light weight. My weight investment is going into my optic at the moment. It’s on the heavier side, but I love it. Have been shaving ounces on rings, bolt handle, stock, etc. Last two place to look are sending the action to UM for light weighting and the barrel.2 oz is a lot when you’re building a light weight rifle . An ounce here and an ounce there adds up.