A discussion also was presented in this article in regard to the accuracy achieved using a Model 700 Remington heavy barreled varmint bolt-action rifle in the 22-250 Remington cartridge with the HTGW sound suppressor. This current effort explores in more detail the bolt action rifle, Model 700 Remington Varmint, performance with the sound suppressor installed. The 22-250 Remington cartridges were loaded with IMR 3031 at 30 grains and used a Nosler 50-grain Ballistic Tip Bullet (BC of 0.238). This load produced a modest velocity of 3,400 feet per second. I have never seen the need to push the upper limits on any load combination.
The early original typical target groups achieved at the 100-yard mark from the shooting bench with the HTGW sup- pressor from the January 24, 2006, initial effort were excel- lent. This test was repeated recently to re-verify these results. At the range in 2006, not a lot of time was spent thinking about the groups’ suppressed results versus not suppressed results, although there was awareness that suppressed rifles can improve or reduce the group size when compared to the rifle performance without the suppressor. This revealed an interesting observation that would be put to good use. This early target information developed in 2006 would
Target set No. 1 showed a five-round group attempt with and without the suppressor.
indicate there is an improvement or reduction in the target group size when the rifle is suppressed. The purpose of this article was to document the early target data results and re- validate the rifle performance with the suppressor. With this knowledge that precision can be improved
by the addition of a suppressor, a field test was initiated to determine if consistent repetitive shots could be made at the 300- to 500-yard distances on an object the size of a ground squirrel. Could a suppressed rifle outperform the un-suppressed rifle based on repetitive validated hits or fewer rounds fired per hit? As the size of the group is im- proved upon (reduced) at 100 yards, the ability to place a shot at distance should improve. A small group of friends and family were assembled to participate in this effort in an area near Boise, Idaho.
In support of a field test, there were patches made to re- ward and emphasize the difficulty or concentration required to achieve this objective for the select few participants. The required skill that must be demonstrated to earn the patch at each of the distances was as follows: 300 yards - 3 rounds/3 squirrels 400 yards - 4 rounds/3 squirrels 500 yards - 5 rounds/3 squirrels The objective of the test effort was to challenge one’s ability at the bench against the criteria. When the criteria are met for each distance, including an occasional cross-wind in the range of 5 to 10 mph, the individual would earn the patch with a certificate.
Wind flags are always located at the shooting location to allow wind drift corrections to be made just prior to each round fired.
The 300-yard patches have been easily achieved.
Target set No. 3 showed a five-shot group attempt with and without the suppressor.
Page 162 Winter 2013
However, because of inclement weather and other priorities in the spring 2011, the 400- and 500-yard effort is yet to be done. A trial effort without the spotters to validate the hits demonstrated that the 400-yard criteria also could be easily achieved, which would suggest improved repeatability or
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