![]() Based on this I think 10.8 to 11.0 will probably be where I need it to be. I did a little shooting today and results are below. I honestly figured I would need slightly more than the 11.2 out of a 9" barrel. AA9 Sierra lists it for super thru sub sonic loadings for 300 whisper. subsonic and military roots 300Blackout Journey Load Data Sun Devil Lower. The twist rate will work well for subsonic and supersonic loadings alike and there is typically no need for an adjustable gas block when switching back and. Vihtavuori N120 Sierra lists it for super thru sub sonic loadings for 300 whisper. Barnes Load Data 300 Blackout Barnes Load Data 300 BlackoutFor specific loads. If you’re reloading 300 BLK subsonic bullets that are designed for use with a suppressor, reloading is the most consistent way to achieve optimal results for your specific gun. Alliant 300mp seems to show promise for super sonic loadings. Most people end up around 10.5, but you should always begin with a starting load and work down to avoid a stuck bullet. 300 AAC Blackout at less than half the cost of factory ammo. You have to start with that, and then adjust down to the actual load. (Take care not to let some larger bullets’ ogives get stuck on the first rib of a standard AR’s magazine. Subsonic loads take advantage of the case’s ability to seat a long, heavy bullet, and typically revolve around projectiles 180 grains and heavier. Originally Posted By: rsilversThat sounds like too much. The 300 Blackout presents a great opportunity to load either subsonic or supersonic. Warranty only valid to original purchaser if purchased through website or authorized dealer.Re: 300 AAC Blackout 9" 220SMK subsonic load data I recently purchased a 10.5' upper and wanted to run subsonic with it, supressed so I picked up a couple of boxes of the hornady sub-x. My question is centered around the Hornady 190 gr Sub-x. Prices and/or specifications are subject to change without notice. I am new to this forum but not new to the 300 blackout. To return a product, send with transportation prepaid, to: NOTE: This warranty does not cover products damaged or rendered defective due to accident, misuse, abuse, modification, water damage, neglect, reloading, improper handling or storage, or failure to follow instructions for use. reiney-Sellier & Bellot 220 gr subsonic loads will NOT cycle in my 16' carbine length impingement system w/ adj block wide open. Lovex BlackOut Rifle (D063-02) powder 15gr would cycle 240gr sub sonic rounds in my carbine system. Please DO NOT send ammunition without obtaining a RA number from our Customer Service Department. Lovex SBR-SOCOM (D063-01) powder is the ticket for subsonic heavies that will cycle in an impingement gas system. During the warranty period, we will (at our sole option) repair, replace or refund the purchase price of any defective part or product covered by this warranty when it is returned by the original owner with proof of purchase.Īll ammunition warranty claims must have a Return Authorization (RA) number assigned before acceptance at our facility for further examination. Be sure to retain lot numbers in the event there is an issue with your ammo.Īll Minuteman Munitions ammunition is warranted against material and workmanship defects for up to one (1) year from the purchase date. NOTE: If you do not have the lot number we CANNOT process your claim. In order to initiate a claim, please contact our Customer Service Department at with your ammunition lot number and the details of your issue including the firearm make and model. All ammunition warranty claims are handled on a case-by-case basis.
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