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7 Handloads
300 H&H Mag, all bullet weights
BulletPowder WeightPowderVelocityOALPrimerSource
165gr SP 66.5 grIMR4350 Unknown Win LRM guest
Don’t have a chrony but according to Nosler the bullet (165 Ballistic Tip) should be about 3090 fps. I was able to keep 4 shots in 3/4".

168gr BTHP 70.0 grH4350 3,150 fps Fed LRM guest
Sierra Matchking bullet; shoots about .75moa in my M70

180gr SP 64.5 grIMR4350 Unknown Win SRM guest
Bullet was Remington 180 gr Corelokt. Groups ran 1".

180 gr SP 70.0 grR22 3,090 fps3.580" Fed LRM guest
Shoots 3/8 inch group at 100 yds. Rifle is an original [1963] Model 70, 26"BBL.

200gr SP 66.5 grH4831sc 2,800 fps3.155" Win SRM guest

200gr BTHP 65.0 grRL 22 Unknown3.6" Fed LRM guest
Shoots about 1", this was using sierra gameking btsp bullets. According to the manual should be about 2900 fps

200gr BTHP 62.5 grH4350 2,775 fps Fed LRM guest
I’ve tried this with Nosler Accubonds and Sierra Gamekings, and it works well with both. 62.5 gr is the max accd to Nosler #5. Shoots about 1moa.

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