Author Topic: Need a good handload for 7mm BR 10 in encore  (Read 346 times)

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Offline Mitch40

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Need a good handload for 7mm BR 10 in encore
« on: December 08, 2004, 10:27:07 AM »
Hello all. Just got a new 7mm BR encore in SST 10 in barrel and looking for a good handload for it with 120 or 130 gr bullets. been useing H335 powder but still havent found the right load yet. any help would be great... :D

Offline haroldclark

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7mm BR
« Reply #1 on: December 08, 2004, 12:03:40 PM »
The 10” barrel in 7mm BR requires a fast to medium burning powder, otherwise, there will be substantial muzzle blast and fire breathing dragon effect..  I have a 15” and 1 18.5” barrel.  I shoot 162 Grain Hornady Amax bullets with 28.8 grove BLC-2 for a velocity of 2050 fps (chronographed velocity.)
The suggested loads below are moderate loads.  I would recommend that you start lower by a couple of grains and watch for pressure signs.  I also, suggested Hodgdon’s H322 powder,  It is more efficient and faster in the short 10” barrel than H335.

120 gr. Sierra SST Pistol bullet   36.1 gr. of  H335     OAL = 2.11”  Bullet down in the neck 0.4”

Velocity 2204 fps and 89% of the powder will burn in the barrel:  There will be lots of muzzle blast and fire.

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120 gr. Sierra SST Pistol bullet 30.3 grains of H322   OAL = 2.11 same as above

Velocity will be about 2222 fps and 92% powder burn in the 10” barrel.  Less flash and blast, but still some.

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130 grain Sierra  SST Pistol bullet:   31.6 gr. Of  H335   OAL = 2.15”  Bullet down in the neck 0.4”

Velocity about 2123 fps and 90% of powder burn in the 10” barrel.  

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130 grain Sierra  SST Pistol bullet:   29.4 gr. Of  H322   OAL = 2.15”  Bullet down in the neck 0.4”

Velocity about 2125 fps and 93% of powder burn in the 10” barrel.