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Rifles, Reloading, Optics, Equipment
Reloading
Pressure build near max for ball powders
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<blockquote data-quote="Hugnot" data-source="post: 2730738" data-attributes="member: 115658"><p>Nice graph! - my compliments</p><p></p><p>I use R-S Hunter & Staball for many of my rifles because it is available.</p><p></p><p>My best results are with large rifle primers & crimping. In cold temperatures I use magnum primers. A good .22-.250 combo is 36.5 gr Staball, 75 H ELDM or 75 H hpbt, PPU brass, & Fed 215 primers. Crimped, 7.7 twist.</p><p></p><p>Another is 6.5 CM, 47.0 R-S Hunter, 120 H ELDM, Win bass, Fiocchi LRP's.</p><p></p><p>I avoid compressed ball powder loads. Best results appear to be with 90% plus charges.</p><p></p><p>An experiment using CCI41's in the 6.5CM with R-S Hunter showed erratic ignition, huge velocity spreads - at 80 plus deg. F.</p><p></p><p>.22-.250 loads using 35.0 gr. of H414, CCI 200 & 75 AMax bullets were OK at 65 deg. but showed heavy bolt lifts at 95 degr.</p><p></p><p>Some stats:</p><p>[ATTACH]433611[/ATTACH][ATTACH]433612[/ATTACH][ATTACH]433613[/ATTACH]</p><p></p><p>Only 5 rounds were fired, not significant, but showed some trends. When it gets warmer more loads using Staball & Fed 215' will be tested. Fed 215's gave better results than Fiocchi LRP.</p><p></p><p>[ATTACH]433616[/ATTACH]</p><p></p><p>This load -6.5 CM, 130 HELDM, Fiocchi LRP, Win Brass. Temps. at 70F</p></blockquote><p></p>
[QUOTE="Hugnot, post: 2730738, member: 115658"] Nice graph! - my compliments I use R-S Hunter & Staball for many of my rifles because it is available. My best results are with large rifle primers & crimping. In cold temperatures I use magnum primers. A good .22-.250 combo is 36.5 gr Staball, 75 H ELDM or 75 H hpbt, PPU brass, & Fed 215 primers. Crimped, 7.7 twist. Another is 6.5 CM, 47.0 R-S Hunter, 120 H ELDM, Win bass, Fiocchi LRP's. I avoid compressed ball powder loads. Best results appear to be with 90% plus charges. An experiment using CCI41's in the 6.5CM with R-S Hunter showed erratic ignition, huge velocity spreads - at 80 plus deg. F. .22-.250 loads using 35.0 gr. of H414, CCI 200 & 75 AMax bullets were OK at 65 deg. but showed heavy bolt lifts at 95 degr. Some stats: [ATTACH alt="Screenshot (478).png"]433611[/ATTACH][ATTACH alt="Screenshot (479).png"]433612[/ATTACH][ATTACH alt="Screenshot (480).png"]433613[/ATTACH] Only 5 rounds were fired, not significant, but showed some trends. When it gets warmer more loads using Staball & Fed 215' will be tested. Fed 215's gave better results than Fiocchi LRP. [ATTACH alt="Screenshot (537).png"]433616[/ATTACH] This load -6.5 CM, 130 HELDM, Fiocchi LRP, Win Brass. Temps. at 70F [/QUOTE]
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Pressure build near max for ball powders
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