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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
.300 Norma magnum for hunting??
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<blockquote data-quote="Swamplord" data-source="post: 1139182" data-attributes="member: 2460"><p>Negative on the 225 BTHP, I do have the 208 BTHP and Amax but haven't loaded any in the 300 LRH</p><p>My barrel is a 30" 10 tw 5r Bartlein in Light Palma so I'm thinking the slowest burning powder at or near 100% case fill should provide for optimum results, My throat is set up to seat the 215 Bergers bt junction at neck/shoulder junction so I have full use of boiler room, according to quick design the 300 Lapua Magnum case h20 capacity is at 118.8 gr and my 300 LRH is at 110.6 verified with fired cases...... so technically I can use the starting loads reduced by 5 gr to start from........ </p><p></p><p>I'm referring to the 300 Lapua Mag data with VV 20N29 and Sierra 220 gr MK from Lapua's website, see pic below .... </p><p></p><p>Start load 220 gr SMK VV-20N29 93.5 gr 2808 fps</p><p>Max. load 220 gr SMK VV-20N29 99.6 gr 2980 fps</p><p>3.661" coal and 27" 9.5 tw barrel</p><p></p><p>This published known data for the 300 Lapua at least gives an idea for a starting load for the VV-20N29 without guessing, I think I'll start with 88 gr and work up in 1 gr increments until I hit signs of pressure back off a bit then start monkeying around with seating depth and ES ..... </p><p></p><p>I'd forgotton that I have 10 cans of Norma 217 powder, the load data in Normas manual shows max 87.0 gr with 230 gr Bergers at 2940 fps out of a 26" bbl , also shows case h20 capacity for the 300 Norma @ 103.0 gr ........ I think I can make mine sing close to 3200 fps, depends on the powder I suppose ........</p></blockquote><p></p>
[QUOTE="Swamplord, post: 1139182, member: 2460"] Negative on the 225 BTHP, I do have the 208 BTHP and Amax but haven't loaded any in the 300 LRH My barrel is a 30" 10 tw 5r Bartlein in Light Palma so I'm thinking the slowest burning powder at or near 100% case fill should provide for optimum results, My throat is set up to seat the 215 Bergers bt junction at neck/shoulder junction so I have full use of boiler room, according to quick design the 300 Lapua Magnum case h20 capacity is at 118.8 gr and my 300 LRH is at 110.6 verified with fired cases...... so technically I can use the starting loads reduced by 5 gr to start from........ I'm referring to the 300 Lapua Mag data with VV 20N29 and Sierra 220 gr MK from Lapua's website, see pic below .... Start load 220 gr SMK VV-20N29 93.5 gr 2808 fps Max. load 220 gr SMK VV-20N29 99.6 gr 2980 fps 3.661" coal and 27" 9.5 tw barrel This published known data for the 300 Lapua at least gives an idea for a starting load for the VV-20N29 without guessing, I think I'll start with 88 gr and work up in 1 gr increments until I hit signs of pressure back off a bit then start monkeying around with seating depth and ES ..... I'd forgotton that I have 10 cans of Norma 217 powder, the load data in Normas manual shows max 87.0 gr with 230 gr Bergers at 2940 fps out of a 26" bbl , also shows case h20 capacity for the 300 Norma @ 103.0 gr ........ I think I can make mine sing close to 3200 fps, depends on the powder I suppose ........ [/QUOTE]
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.300 Norma magnum for hunting??
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