RBHarter
West Central AR
This isn't necessarily a failure.
It almost needs to be in the low node thread .
I have too many fires let alone irons .
I had too many helpers in the man cave and was unable to sort out the 4831 loads from the Unique loads although in hindsight 9 vs 35 gr should have been pretty obvious on a scale .
I let the Chony sort them out it looks like the Unique was the faster of the 2 loads . 940 and 1040 fps MV with the 45-500 FP @530 gr the case was a problem. I guess brass can just be too old . The one pictured separated on the extractor groove of a Rem-UMC case . 2 more of the 9 went higher .
The round holes were the faster Unique load .
In case anyone wants to know 35.5 gr of H4831 is all you can get in a PPU case with the Marlin 2.55" length RCBS bullet . Might try a mag primer with it if I have any . It's not a fabulous group but with the operator error, type , and 3MOA peep that allows me to see the hood up front well inside the peep I'm not totally unhappy about it the bullet is 1.25 and that's 2.0 remaining of the case . I'm also not 100% about which holes belong to which powder . I would think that the smaller deviation would belong to the fuller case .
It's worth mentioning that recoil was most pleasant . I'd rather shoot these than the 2000 fps 255s .
After shooting this rifle and dozens of loads from hot 45 Colts to upper modern lever loads the right diagonal climb per shot is the norm . The first 3 are close enough to be called "meat in the freezer" inside 200 yd and that is generally my goal .
About my routine.
I left about 1 minute between shots , my usual set is 3 or 5 in 90 seconds muzzle up , action open , cooling, check targets allowing 5-10 min to cool , or 10 rounds in 2 sets of 5 over 5 min . It's real world applied field duty more than shooting groups for score . I shoot poorly for score . I took 3 rifles this trip so there was cooling time between sets for all 3 and I could shoot through w/o breaking up the sets .
It almost needs to be in the low node thread .
I have too many fires let alone irons .
I had too many helpers in the man cave and was unable to sort out the 4831 loads from the Unique loads although in hindsight 9 vs 35 gr should have been pretty obvious on a scale .
I let the Chony sort them out it looks like the Unique was the faster of the 2 loads . 940 and 1040 fps MV with the 45-500 FP @530 gr the case was a problem. I guess brass can just be too old . The one pictured separated on the extractor groove of a Rem-UMC case . 2 more of the 9 went higher .
The round holes were the faster Unique load .
In case anyone wants to know 35.5 gr of H4831 is all you can get in a PPU case with the Marlin 2.55" length RCBS bullet . Might try a mag primer with it if I have any . It's not a fabulous group but with the operator error, type , and 3MOA peep that allows me to see the hood up front well inside the peep I'm not totally unhappy about it the bullet is 1.25 and that's 2.0 remaining of the case . I'm also not 100% about which holes belong to which powder . I would think that the smaller deviation would belong to the fuller case .
It's worth mentioning that recoil was most pleasant . I'd rather shoot these than the 2000 fps 255s .
After shooting this rifle and dozens of loads from hot 45 Colts to upper modern lever loads the right diagonal climb per shot is the norm . The first 3 are close enough to be called "meat in the freezer" inside 200 yd and that is generally my goal .
About my routine.
I left about 1 minute between shots , my usual set is 3 or 5 in 90 seconds muzzle up , action open , cooling, check targets allowing 5-10 min to cool , or 10 rounds in 2 sets of 5 over 5 min . It's real world applied field duty more than shooting groups for score . I shoot poorly for score . I took 3 rifles this trip so there was cooling time between sets for all 3 and I could shoot through w/o breaking up the sets .
