NitroX
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| (.700 member) |
| 12/04/14 05:56 PM |
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Re: 300 h&h flanged 180 or 220 projectiles ???.
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Quote:Quote:
By all means go with the 220 grain. The .300 H&H has a .371" neck which is ideal for the 220 grain projectile. That will be a real killer.
AND you can always shot the 3/4 rule by backing off the load for a 165 grain bullets.
I have a .35 WCF double that shoots 200 and 250 about the same point of impact.
what is the 3/4 rule ?
Three-quarters the bullet weight and same powder charge. Some people believe the rifle will still shoot well to regulation.
.375 - 300 gr regulation load x .75 = 225 grs so use the same powder charge as the 300 gr for a 235 gr bullet.
.450 - 480 gr regulation load x .75 = 360 gr so use same charge as the 480 gr for a 350 gr bullet
Therefore if the rule works:
.300 - 220 gr regulation load x .75 = 165 gr. If the three-quarters "rule" works, in theory a 165 gr bullet will also regulate with the same powder charge.
I am not convinced it is a "rule". However many people claim it works in their double rifles.