Caliber:___6.5 CM
Bullet:____ 85 Hammer Hunter
Powder: __Varget
Primer:____Fed215
Brass:_____ Lapua 1x
COAL: ____ 2.537"
Rifle:______Tikka T3X Lite - unmodified factory
Barrel:_____24" stainless, cold-forged
Twist:______1:8 (actual twist rate: 1:7.75)
Ladder: .5 grain steps, Fed215 primer, 3/8T FCD in middle of 1st (top) groove, Lapua 1x brass, Lee FL sizing die - expander sanded down to NT .004
Start Load: 42.0g/3302
Final Load: 44.8g/3598 (0.425 MOA @ 200yds, SD 3.41, ES 11)
Stability Factor: 3.23 (Berger Twist Rate Stability Calc)
Temperature: 46F
Humidity: 75%
Elevation: Sea level +161 ft
Notes: Reached pressure (sticky bolt) at 44.5 gr, 1/2T FCD, Hornady 1x brass; by reducing FCD crimp to 3/8T, and swapping out Hornady brass to virgin Lapua brass, there was no pressure at 45.0 gr and 3,646 FPS. The accuracy node was 44.8g/3,598fps. Case capacity was 100% @ 44.8g Varget, no compression, using 6" drop tube.
Leupold 4x fixed scope used at 50-200 yards, with Harris bipod and rear sand bag off bench. Magnetospeed chrono.
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Caliber:___6.5 CM
Bullet:____110 Hammer Hunter
Powder:__ Varget
Primer:____Fed215
Brass:_____ Lapua 1x
COAL:_____2.728"
Rifle:______Tikka T3X Lite - unmodified factory
Barrel:_____24" stainless, cold-forged
Twist:______1:8 (actual twist rate: 1:7.75)
Ladder: .5 grain steps (Fed215 primer, 3/8T FCD in middle of 2nd groove (from top), Lapua 1x brass, Lee FL sizing die - expander sanded down to NT .004
Start Load: 40.0g / 3026
Final Load: 43.0g / 3298 (.211 MOA @ 200yds, SD 1.08, ES 3)
Stability Factor: 1.86 (Berger Twist Rate Stability Calc)
Temperature: 56F
Humidity: 55%
Elevation: Sea level +161 ft
Notes: Reached pressure at 42.5g/3,217 fps (sticky bolt); at 44.0g (very sticky bolt and ejector ring) using Hornady 1x brass; swapped out Hornady 1x brass to Lapua 1x brass, and there were no pressure signs at 43.0g/3,307fps. The accuracy node was 43.0g/3,298fps.
Leupold 4x fixed scope used at 50-200 yards, with Harris bipod and rear sand bag off bench. Magnetospeed chrono.
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Caliber:___6.5 CM
Bullet:____124 Hammer Hunter
Powder:__Varget
Primer:___Fed215
Brass:_____Lapua 2x
COAL: ____2.825"
Rifle:______Tikka T3X Lite - unmodified factory
Barrel:____24" stainless, cold-forged
Twist: ____1:8 (actual twist rate: 1:7.75)
Ladder: .5 grain steps, Fed215 primer, 3/8T FCD in middle of 2nd groove from top, Lapua 1x brass, Lee FL sizing die - expander sanded down to NT .004
Start Load: 38.0g/2832
Final Load: 39.6g/2978 (.440 MOA @ 200 yds, .306 MOA @ 100 yds, 1 ragged hole @ 50 yds, SD 4, ES 9)
Stability Factor: 1.53 (Berger Twist Rate Stability Calc)
Temperature: 50F
Humidity: 59%
Elevation: Sea level +161 ft
Notes: Reached pressure at 40.5g/3,037fps (sticky bolt and light ejector ring), using Hornady 1x brass; swapped out Hornady 1x brass to Lapua 2x brass, and there were no longer pressure signs. The accuracy node was 39.8g at 2,978fps.
Leupold 4x fixed scope used at 50-200 yards, with Harris bipod and rear sand bag off bench. Magnetospeed chrono.
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Caliber: ___10mm Automatic (.400)
Bullet:_____150 Jack Hammer (actual weight 151.3g)
Powder:___Accurate No.7
Primer: ___CCI300 LP
Brass: _____Starline 1x
COAL:_____1.262"
Pistol:_____Glock 20 Gen4 - unmodified factory
Barrel:____ 4.61"
Twist:______1:9.84
Crimp: Lee FCD taper crimp (1 1/4T) in middle of top PDR groove, assorted brass 1x, including Starline, Sig, GFI, Doubletap. Lee FL sizing die with standard NT - expander unmodified.
Start Load: 11.7g
Final Load: 12.3g
Ladder based on: Hogdon reloading data for 150g SIE JHP - 11.7g min load/13.0g max load; Nosler load data for 150g .400 - 11.7g min to 12.7g max
Temperature: 59F
Humidity: 55%
Elevation: Sea level +161 ft
Notes: Goal was to find a moderate, low pressure load for practise, plinking paper and steel targets at 7.5 to 30 yds. There were no pressure signs at 12.3g and accuracy was excellent at all ranges due to mild recoil of 150 JH at lower pressures. At 7.5 yards, on paper, holes were touching. Rapid fire groups of 3 shots printed 3 inch groups at 10 yards. This is a great load for practicing quick follow up shots at multiple targets -- 3-round bursts (1 + double tap) at each steel plate across the width of the range. Compared to the heavier woods loads I typically run in my Glock 20 (in the magazine I alternate 200g flat nose hardcast Underwoods with a Muzzle Energy of 694 ft lbs, and Underwood 140g Xtreme Penetrators, which run plenty hot at 1,500 fps) these 150g Jack Hammers are easy on my joints, exceedingly pleasant to shoot, and quick to get back on target due to the low recoil of the load. If worked up to a max load I could see alternating all three of these bullets in the Glock 15-round magazine.
I have not yet loaded these to a max load. I need to pick up a different chrono for those ladder tests. My Magnetospeed Sport won't work with a pistol (the Magnetospeed v3 is supposed to work with some pistols, including a Glock 20 Gen4, using a rail mount kit).
150 Jack Hammers were seated to their maximum COAL of 1.262" to fit the Glock magazine (SAAMI maximum COAL is 1.260"). I used a Lee FCD taper-crimp in the middle of the top PDR groove. They fit the Glock 20 Gen4 magazine perfectly. There were no hang-ups with feeding or chambering in the standard Glock 20 Gen4 magazine or 4.61" standard factory barrel.