Precision One - 45-70 Govt - 350 Grain - FP

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The Precision One .45-70 Govt 350 Grain FP (Flat Point) ammunition may or may not be "trapdoor safe," depending on its pressure specifications.
The original Springfield Trapdoor rifles are designed to handle lower-pressure loads consistent with black powder or reduced-power smokeless loads, typically generating pressures below 28,000 CUP (Copper Units of Pressure). Modern factory loads specifically labeled as "trapdoor safe" are manufactured to remain within these pressure limits.
To confirm if this particular Precision One ammunition is suitable for your trapdoor rifle:

Check the manufacturer’s specifications for pressure data.
Contact Precision One directly to verify compatibility with trapdoor rifles.

If you’re unsure, we recommend using ammunition explicitly marked as "trapdoor safe" or consulting a gunsmith to ensure safety and avoid damaging your firearm.

Thank you for contacting True Shot Ammo!
The Precision One .45-70 Govt 350 Grain FP (Flat Point) ammunition may or may not be "trapdoor safe," depending on its pressure specifications.
The original Springfield Trapdoor rifles are designed to handle lower-pressure loads consistent with black powder or reduced-power smokeless loads, typically generating pressures below 28,000 CUP (Copper Units of Pressure). Modern factory loads specifically labeled as "trapdoor safe" are manufactured to remain within these pressure limits.
To confirm if this particular Precision One ammunition is suitable for your trapdoor rifle:

Check the manufacturer’s specifications for pressure data.
Contact Precision One directly to verify compatibility with trapdoor rifles.

If you’re unsure, we recommend using ammunition explicitly marked as "trapdoor safe" or consulting a gunsmith to ensure safety and avoid damaging your firearm.